Repair 7

The Isuzu Rodeo is a pickup truck manufactured from 1988 to 2002. A common engine for the 2001 model is a four-cylinder, 2.2-liter engine with a double overhead camshaft (See Reference 1) (See Reference 2) . This engine requires a timing belt to keep the crankshaft and camshaft synchronized. The most important part of replacing the timing belt is ensuring that you keep the crankshaft and camshaft in the correct position during the procedure.

Instructions

Removal

1

Disconnect the negative battery cable with a socket wrench to ensure you dont inadvertently start the engine.

2

Turn the drive belt adjuster clockwise with a box-end wrench to relieve the tension on the the drive belt. Remove the drive belt.

3

Detach the electrical connectors from the chassis wiring harness in the left rear quadrant of the engine compartment.

4

Disconnect the bolts that attach the crankshaft pulley to the crankshaft with a socket wrench, and remove the pulley.

5

Remove the retaining nut that attaches the engine harness cover to the front of the engine, and detach the cover.

6

Remove the cover for the timing belt with a socket wrench. Rotate the crankshaft clockwise to align the timing marks on the crankshaft with the timing marks on the crankshaft housing.

7

Disconnect the adjusting bolt for the timing belt tensioner and remove the tensioner from the engine. Detach the timing belt from the crankshaft and camshaft.

Installation

8

Connect the timing belt tensioner and tighten the adjusting bolt by hand. Turn the crankshaft clockwise to align its timing marks if necessary.

9

Place a "J-43037" tool between the intake sprocket and exhaust sprocket of the camshaft to hold the camshaft in place while you install the timing belt.

10

Install the new timing belt while keeping the tension side of the belt taut. Turn the adjusting lever on the timing belt tensioner clockwise until the pointer on the tensioner moves to the center of the "V" notch on the tensioner housing.

11

Tighten the adjuster bolt for the timing belt tensioner to 18 ft. lbs. with a torque wrench.

12

Replace the front cover for the timing belt and tighten its mounting bolts to 53 in. lbs. with a torque wrench. Attach the electrical connectors for the engine harness. Connect the crankshaft pulley and torque its mounting bolts to 14 ft. lbs.

13

Install the drive belt and turn the drive belt adjuster counterclockwise to apply tension to the drive belt. Attach the cable to the negative battery terminal with a socket wrench.

The Ford Probe was a sport coupe manufactured from 1989 to 1997, with the second generation of this series beginning in 1993. The GT trim level was a sportier version of the base model, and included a six-cylinder 2.5-liter engine with a double overhead camshaft. This type of engine requires a timing belt to synchronize the movement of the camshafts and crankshafts. The timing belt in a 1993 Ford Probe requires replacement approximately every 60,000 miles.

Instructions

1

Remove the cable from the negative battery terminal with a socket wrench. Support the engine with a floor jack and remove the mounting bolts on the right engine mount. Disconnect the engine mount and detach the covers for the timing belt.

2

Turn the crankshaft clockwise to align the timing marks. The timing mark on the crankshaft sprocket must align with the timing mark on the oil pump. The timing marks on the camshaft sprockets must align with the timing marks on the cylinder head.

3

Hold the timing belt tensioner in place to avoid stripping the threads on the mounting bolts when you remove them. Disconnect the lower mounting bolt on the timing belt tensioner with a socket wrench first, then disconnect the upper mounting bolt. Remove the mounting bolts on the number 1 idler pulley and remove the pulley. Detach the timing belt from its pulleys.

4

Insert a tool handle of appropriate size into one of the camshaft sprocket holes to hold it in place. Disconnect the mounting bolt for the camshaft sprocket with a socket wrench, and remove the sprocket from the camshaft.

5

Shift your transmission into fourth gear and set the parking brake if your vehicle has manual transmission. Disconnect the dust cover for the flywheel with a socket wrench, and install a locking tool onto the flywheel if your vehicle has automatic transmission. Disconnect the mounting bolt for the crankshaft sprocket and remove the sprocket.

6

Align the dowel on the right camshaft with the slot on the right camshaft sprocket Installed the sprocket onto the camshaft and hold the sprocket in place. Fasten the mounting bolt for the camshaft sprocket and tighten it to between 35 and 48 foot-pounds with a torque wrench. Repeat this step to install the left camshaft sprocket.

7

Align the key way on the crankshaft with the timing mark on the oil pump and install the crankshaft sprocket onto the crankshaft. Tighten the mounting bolt for the crankshaft sprocket to between 116 and 122 foot-pounds with a torque wrench.

8

Hold the timing belt tensioner in place with a vertical press and push the adjuster rod into its hole to align the hole on the piston with the second hole on the case of the timing belt tensioner. Place a metal pin with a diameter of 0.063 in. into the second hole on the timing belt case to hold the piston in place.

9

Turn the crankshaft clockwise to align the timing marks on the camshaft sprockets, if necessary. Turn the crankshaft counterclockwise to move the sprocket back by one tooth.

10

Install the timing belt onto the crankshaft sprocket, number two idler pulley, left camshaft sprocket, timing belt tensioner pulley and right camshaft sprocket in that order. Apply pressure to the timing belt to hold it in place, and install the number one idler pulley. Tighten the mounting bolt for the pulley to between 28 and 30 foot-pounds with a torque wrench.

11

Install the timing belt tensioner and tighten its mounting bolts to between 14 and 18 foot-pounds with a torque wrench. Remove the pin from the timing belt case. Turn the crankshaft two full turns clockwise to align the timing marks again.

12

Adjust the timing belt tensioner so that the deflection of the timing belt between the crankshaft and timing belt tensioner is 0.24 to 0.31 inches.

13

Connect the covers for the timing belt with a socket wrench, and install the right engine mount. Tighten the nuts for the engine mount to between 55 and 77 foot-pounds with a torque wrench and tighten the through bolt to between 63 in 86 foot-pounds. Lower the floor jacks supporting the engine, and attach the cable to the negative battery terminal with a socket wrench.

The Mazda B Series is a line of pickup trucks that Mazda Motor Corporation has manufactured since 1961. The number in the model name indicates the displacement of the engine, so the B2200 has a 2.2-liter engine. This engine has a single overhead camshaft, and uses a timing belt to coordinate the opening and closing of the cylinder valves. The replacement of the timing belt in a 1989 Mazda B2200 is part of its routine maintenance schedule.

Instructions

1

Remove the cable from the negative battery terminal with a socket wrench, and detach the accessory drive belts. Disconnect the covers for the timing belt.

2

Turn the crankshaft clockwise to align the A mark on the camshaft pulley with the timing mark on the camshaft housing. Disconnect the mounting bolts for the crankshaft pulley with a socket wrench, and remove the pulley from the crankshaft.

3

Detach the spring for the timing belt tensioner with a pair of brake pliers. Disconnect the mounting bolt from the timing belt tensioner with a socket wrench and remove the tensioner. Disconnect the timing belt from its pulleys.

4

Place a T-wrench onto one of the housing bolts for the camshaft pulley. Place another T-wrench on the mounting bolt for the pulley and disconnect the mounting bolt. Remove the camshaft pulley from the camshaft.

5

Install the new timing belt and align the timing marks on the camshaft pulley if necessary. Ensure that the timing belt engages the teeth on the sprockets of the camshaft, crankshaft and belt tensioner.

6

Install the mounting bolt for the belt tensioner and tighten it by hand. Install the tensioner spring, and loosen the lock bolt for the belt tensioner with a socket wrench.

7

Turn the crankshaft clockwise by two turns and align the timing marks. Tighten the locking bolt on the timing belt to between 28 and 38 ft. lbs. with a torque wrench. Turn the timing belt tensioner to adjust the tension on the timing belt. The timing belt should deflect by about 12mm when you apply a force of 22 lbs. to the longest span of the timing belt.

8

Replace the covers for the timing belt with a socket wrench, and attach the accessory drive belts. Connect the cable to the negative battery terminal.

The timing chain in an internal combustion engine connects the crankshaft and camshaft. The timing chain ensures that the two shafts remain in sync with one another. Beginning in the mid 1980s, metal timing chains were widely replaced by rubberized timing belts or timing gears. An internal combustion engine will not run with a broken timing chain or belt. Timing chains are rarely known to break during an engines typical lifetime.

Under-tensioning

If a timing chain is not properly tensioned, it may develop slack, which can result in chain-slap and premature fatigue. Cracks in the chain may develop, resulting in failure.

Over-tensioning

An overly tight timing chain is placed under excessive stress. The added tension increases friction and heat within the moving parts of the chain that can result in early failure.

Engine Seizure

Situations such as an engine overheating or running out of oil can cause a piston to seize within the cylinder. If this happens while the engine is running at a high rpm, the sudden stop in rotation can cause a timing chain to fail.

The 1987 Mustang belongs to the third generation of this series, which was in production from 1979 to 1993. It had a choice of several engines, including a four-cylinder 2.3-liter engine. This engine uses a timing belt to ensure that the cylinder valves open and close at the correct point in the cylinders compression cycle. The timing belt for a 1987 Mustang with a 2.3-liter engine should last about 60,000 miles before requiring replacement.

Instructions

1

Remove the access plug on the outer timing belt cover with a socket wrench. Turn the crankshaft clockwise to align the timing mark on the crankshaft sprocket with the timing mark on the engine block. The timing mark on the camshaft sprocket must also align with the timing mark on the inner cover of the timing belt.

2

Loosen the adjuster bolts for the accessory drive belts with a socket wrench, and remove the drive belts. Disconnect the cooling fan and its pulley from the hub of the water pump. Remove the mounting bolt for the outer cover of the timing belt, and disconnect the timing belt cover. Detach the distributor cap from the distributor so you can push the distributor cap out of the way.

3

Loosen the adjustment and pivot bolts for the timing belt tensioner with a socket wrench. Pull the tensioner away from the timing belt as far as possible and tighten the adjustment bolt to hold the tensioner in place. Disconnect the crankshaft pulley and the guide plate for the timing belt that is behind the pulley. Remove the timing belt.

4

Install the new timing belt over the crankshaft sprocket, auxiliary drive shaft sprocket and camshaft sprocket in that order. Center the timing belt on the sprockets. Loosen the adjustment bolt on the timing belt tensioner with a socket wrench to place tension on the timing belt.

5

Turn the crankshaft two complete turns clockwise to remove the slack in the timing belt, and ensure the timing marks are aligned. Tighten the adjustment bolt on the timing belt tensioner to between 14 and 21 ft. lbs. with a torque wrench. Tighten the pivot bolt on the belt tensioner to between 28 and 40 ft. lbs.

6

Connect the distributor cap to the distributor. Install the guide plate for the timing belt, outer timing belt cover and crankshaft pulley with a socket wrench. Connect the pulley for the water pump and the cooling fan. Install the accessory drive belts and adjust their tension. Start the engine and check the timing of the ignition.

The six-cylinder, 5.9-liter Cummins diesel engine is most common in light to medium trucks, such as Dodge Ram pickup trucks made from 1989 to 1998. It produces a large amount of low-end torque and has better fuel economy than a larger eight-cylinder engine. The 5.9-liter Cummins engine uses a timing chain to drive the camshaft with the crankshaft, which requires a cover. The procedure for removing the timing chain cover is the same for all vehicles with a 5.9-liter Cummins engine.

Instructions

1

Disconnect the water pump and power steering pump from the engine compartment with a socket wrench. Disconnect the pulley from the crankshaft and pull the crankshaft damper from the crankshaft with a suitable puller.

2

Detach the fuel lines from the fuel pump with a socket wrench and disconnect the fuel pump. Remove the front mounting bolts for the oil pump. Disconnect the mounting bolts for the timing chain and remove the timing chain.

3

Clean the mounting surface for the timing chain cover with a shop cloth and install a new gasket to the cover. Apply a bead of RTV sealer 1/8 inch wide to the oil pan gasket.

4

Tighten the mounting bolts for the timing chain cover to 30 foot-pounds with a torque wrench. Center the gasket on the oil pan and tighten the mounting bolts for the oil pan to 17 foot-pounds.

5

Coat the seal for the crankshaft damper with lithium grease and mount the damper to the crankshaft. Press the crankshaft damper to the crankshaft with Tool C-3688 and tighten the mounting bolt for the crankshaft damper to 135 foot-pounds with a torque wrench. Install the crankshaft pulley to the crankshaft with a socket wrench.

6

Connect the fuel pump with a socket wrench and attach the fuel lines to the fuel pump. Install the water pump and power steering pump.

The 1986 Toyota Pickup belongs to the fourth generation of this series which was in production from 1983 to 1988. The most common engine for this vehicle is a four-cylinder 2.4-liter engine. The 1986 Toyota pickup uses a timing chain to drive the camshaft with the crankshaft. The timing chain may require replacement, although it can last for the lifetime of the vehicle. The most critical aspect of the timing chain replacement is keeping the timing marks aligned during the procedure.

Instructions

1

Disconnect the alternator and oil pan with a socket wrench. Remove the cooling fan with the water pump still attached. Disconnect the securing bolt for the crankshaft pulley and pull the crankshaft pulley from the crankshaft with a suitable gear puller.

2

Detach the water bypass hose to access the timing chain cover. Disconnect the adjusting bar for the cooling fan belt with a socket wrench. Remove the water outlet pipe for the heater.

3

Remove the mounting bolts for the timing chain cover with a socket wrench, and detach the cover. Separate the timing chain from the crankshaft damper. Remove the timing chain and camshaft sprocket from the camshaft. Remove the crankshaft sprocket and oil pump drive from the crankshaft with a suitable gear puller.

4

Turn the crankshaft clockwise with a wrench until the crankshaft key aligns with the timing mark on the crankcase. Align the key way on the crankshaft sprocket with the key on the crankshaft and mount the sprocket to the crankshaft.

5

Mount the new timing chain to the crankshaft sprocket so that the single bright link on the chain aligns with the timing mark on the crankshaft sprocket. Mount the timing chain to the camshaft sprocket so that the timing mark on the sprocket is between the pair of bright links on the timing chain.

6

Place the drive spline for the oil pump over the key on the crankshaft and mount the gasket for the timing chain cover to the front of the engine block. Turn the camshaft sprocket counterclockwise with a wrench to take up the slack on the timing chain.

7

Replace the cover for the timing chain. Tighten the 8-mm mounting bolts to 9 foot-pounds with a torque wrench and tighten the 10-mm bolts to 29 foot-pounds. Apply a thin layer of gasket sealer to the gaskets for the oil pan and timing chain cover.

8

Connect the adjusting bar for the cooling fan belt, and tighten its mounting bolts to 9 foot-pounds with a torque wrench. Attach the water outlet pipe for the heater and the water bypass pipe.

9

Mount the crankshaft pulley to the crankshaft and tighten its mounting bolt with a socket wrench. Attach the water pump and air conditioning compressor. Connect the oil pan and alternator.

The timing chain keeps parts within your engine in sync by shutting and opening valves at their correct times. If you experience problems with your timing chain, knowing the right procedure for replacing it is valuable information to have.

Significance

Timing chain problems can lead to other serious engine issues. Pistons can be damaged as a result of a broken timing chain. You are also at risk of bending valves if you prolong your timing chain replacement.

Identification

There are several things that you can look for to identify timing chain problems. Strange engine noises proceeding from the front of the engine is a great indicator. A rattling sound as you increase and lower speeds often suggests that your timing chain is failing.

Procedure

To replace your timing chain, several parts will need to be removed first, such as fan belts and pulleys. Timing covers should also be removed and inspected. When replacing the timing chain, the tensioner and sprockets should be replaced with it as well.

Correct ignition timing specifications are crucial for engine performance. Timing affects many variables, including fuel economy and engine longevity. Corolla is one of the most popular compact cars that was first introduced in 1966 and produced by Japanese automaker Toyota. Its engineers have determined precise timing specifications so that you can benefit from your Corolla as much as possible.

Measuring Ignition Timing

Use a timing light to check your timing while the engine is running. An inductive trigger signal will be picked up from one of the spark plug cables, causing the light to turn on and freeze while the spark plug fires. This helps to determine the crankshaft position. Use this information for making timing adjustments because the rate at which the crankshaft is spinning and is processed by the distributor controls the ignition (that is, controls when the spark should occur).

Timing Specifications

Ideally, the time at which the mixture should be fully burned on a Toyota Corolla is approximately 10 degrees before top dead center (BTDC) at 700 rpm.

Notes

Maximum RPM is not allowed. Cooling fan and vacuum advance (if equipped) should be turned off while adjusting the ignition timing.

Isuzu manufactured the Rodeo pick-up truck from 1988 to 2002. A six-cylinder 3.2-liter engine featuring a double overhead camshaft was introduced for the 1998 model. This type of engine uses a timing belt to synchronize the rotation of the crankshaft and camshaft. The most important part of replacing the timing belt is keeping the camshafts and crankshafts in the correct position during the procedure. You must also adjust the tension on the timing belt to the proper level.

Instructions

1

Disconnect the cable on the negative battery terminal with a socket wrench. Remove the air cleaner assembly, including the intake duct. Disconnect the upper shroud for the cooling fan from the radiator. Remove the cooling fan from its pulley, and detach the drive belts. Disconnect the upper covers for the timing belt and the pulley assembly for the cooling fan.

2

Rotate the crankshaft clockwise to align the timing marks on the camshafts with the dots on the rear covers of the timing belt. The timing pointer on the crankshaft must also align with the mark on the lower cover of the timing belt. Remove the center bolt on the crankshaft pulley with tool No. J-8614-01 and disconnect the crankshaft pulley.

3

Remove the oil cooler hoses from the lower timing belt cover if present, and disconnect the cover from the engine with a socket wrench. Remove the pusher assembly under the pulley for the timing belt tensioner. Push the pusher rod into its socket and keep it retracted with a 1.4-mm wire pin. Remove the timing belt from the camshaft and crankshaft.

4

Adjust the crankshaft and camshaft sprockets to align the timing marks from step two if necessary. Install the new timing belt onto the water pump pulley and idler pulley with a socket wrench in that order.

5

Turn the left camshaft sprocket clockwise to align its timing mark with the white alignment mark on the timing belt. Connect the crankshaft pulley and tighten its bolt by hand. Turn the crankshaft pulley clockwise to create slack between the crankshaft pulley and the right camshaft pulley.

6

Push the pulley for the timing belt tensioner towards the timing belt and install the pusher assembly with a socket wrench. Remove the wire pin from the pusher to allow the pusher rod to protrude from its hole.

7

Turn the crankshaft pulley clockwise by two complete turns and align its timing marks. Fasten the pivot bolt for the timing belt tensioner pulley and tighten it to 31 foot pounds with a torque wrench. Tighten the bolts for the timing belt pusher 14 foot pounds. Disconnect the crankshaft pulley.

8

Attach the covers for the timing belt and tighten their mounting bolts to 12 foot pounds with a torque wrench. Connect the oil cooler hoses to the timing cover if present, and tighten their mounting bolts to 16 foot pounds. Mount the pulley for the crankshaft and tighten its mounting bolt to 123 foot pounds.

9

Connect the pulley assembly for the cooling fan and torque its mounting bolts to 16 foot pounds with a torque wrench. Install the accessory drive belts. Connect the cooling fan assembly and tighten its bolts to 72 inch pounds. Install the upper shroud for the cooling fan, and air cleaner assembly. Attach the negative battery cable with a socket wrench.

Correct ignition timing specifications are crucial for engine performance. Timing affects many variables, including fuel economy and engine longevity. Prizm is a compact car manufactured in United States by Chevrolet since1989. Its engineers have determined precise timing specifications so that you can benefit from your Prizm as much as possible.

Measuring Ignition Timing

Use a timing light to check your timing while the engine is running. An inductive trigger signal will be picked up from one of the spark plug cables, causing the light to turn on and freeze while the spark plug fires. This helps to determine the crankshaft position. Use this information for making timing adjustments, because the rate at which the crankshaft is spinning and is processed by the distributor controls the ignition (that is, controls when the spark should occur).

Timing Specifications

Ideally, the time at which the mixture should be fully burned on a Geo Prizm is approximately 10 degrees before top dead center (BTDC) at idle.

Notes

These adjustment specifications are both for automatic and manual transmission versions.

The Ford Focus is a compact car that Ford has manufactured since 2000 for the United States. It has either a 2.0-liter or 2.3-liter engine with a double overhead camshaft. Some versions of the Focus use a timing chain to turn the camshafts with the crankshaft. The procedure for replacing the timing chain is generally the same, although some models of the Ford Focus also require you to remove the camshaft sprockets.

Instructions

1

Disconnect the front cover from the engine with a socket wrench. Compress the tension rod for the timing chain to align the hole in the tensioner housing with the hole in the tensioner rod. Place the end of a paperclip into the holes to keep the tensioner rod temporarily in place.

2

Remove the mounting bolts for the timing chain tensioner with a socket wrench and disconnect the tensioner from the crankcase. Disconnect the right guide for the timing chain, and detach the timing chain from the sprockets. Disconnect the left guide for the timing chain.

3

Attach a holding tool to the flats of the camshaft to hold it in place. Disconnect the mounting bolts for the camshaft sprockets with a socket wrench, and remove the sprockets from the camshafts. Remove the holding tool from the camshaft. Mount the camshaft sprockets to the camshaft, and fasten the mounting bolts by hand. Perform this step only if you need to remove the camshaft sprockets to install the new timing chain.

4

Mount the left guide for the timing chain, and tighten its mounting bolts to 89 inch-pounds with a torque wrench. Mount the timing chain to the crankshaft sprocket and camshaft sprockets. Connect the right guide for the timing chain, and tighten its mounting bolts to 89 inch-pounds.

5

Install the tensioner for the timing chain, and fasten its mounting bolts by hand. Pull the paper clip from the tensioner housing to apply tension to the timing chain. Tighten the mounting bolts for the tensioner to 89 inch-pounds with a torque wrench.

6

Attach the holding tool to the flats on the camshaft to hold the camshaft in place. Tighten the mounting bolts for the camshaft sprocket to 53 foot-pounds with a torque wrench. Perform this step only if you removed the camshaft sprockets in step three.

7

Attach the front cover to the engine with a socket wrench.

The Isuzu Trooper was a mid-size sport utility vehicle manufactured between 1981 and 2005. It was also marketed under other names, including the Trooper II for models made before 1989. The standard engine for the 1987 Isuzu Trooper is a four-cylinder 2.3-liter engine with a single overhead camshaft. The timing belt allows the crankshaft to drive the camshaft so that the cylinder valves open and close in the correct sequence.

Instructions

1

Remove the cable from the negative battery terminal with a socket wrench. Disconnect the mounting bolt for the crankshaft pulley and remove the pulley. Disconnect the covers for the timing belt.

2

Rotate the crankshaft to align the timing marks. The mark on the camshaft sprocket must align with the mark on the rear cover for the timing belt. The keyway of the crankshaft sprocket must align with the mark on the cover of the oil seal retainer. This position places the No. 4 cylinder in the top dead center position of its compression stroke.

3

Loosen the timing belt tensioner with a socket wrench to relieve the tension on the timing belt. Detach the timing belt from the sprocket of the crankshaft.

4

Install the new timing belt onto the sprockets for the crankshaft, oil pump and camshaft in that order. Align the timing marks for the crankshaft and camshaft again if necessary. Tighten the timing belt tensioner to apply tension to the timing belt.

5

Turn the crankshaft two full turns counterclockwise to realign the timing marks. Loosen the bolt on the tensioner pulley with a socket wrench and allow the belt tensioner to apply the correct tension to the timing belt. Torque the bolt for the tensioner pulley to 14 ft. lbs.with a torque wrench.

6

Connect the covers for the timing belt with a socket wrench and install the pulley for the crankshaft. Attach the cable to the negative battery terminal. Start the vehicle and check for fluid leaks.

The Hyundai Elantra is a compact car made in South Korea since 1990. The 2002 model is a fourth-generation Elantra, which includes the 2000 to 2006 models. The 2002 Elantra typically has an 1.8-liter engine or a 2.0-liter engine, and the timing belt replacement procedure is the same for both engines. A timing belt synchronizes the camshaft and crankshaft on an overhead valve engine. A timing belt has a limited lifetime and typically needs to be replaced every 60,000 miles.

Instructions

1

Remove any components needed to access the cover of the timing belt on the front of the engine. Disconnect the timing belt cover with a socket wrench. Turn the crankshaft clockwise to bring the No. 1 piston to its top dead center position as indicated by the timing marks on the crankshaft.

2

Disconnect the tensioner for the timing belt and the idler pulley with a socket wrench. Mark the timing belt to show its direction of rotation. Remove the timing belt from the sprockets of the camshaft and crankshaft.

3

Rotate the camshaft manually to align the timing marks on the camshaft sprocket. Place the new timing belt over the camshaft sprocket and the crankshaft sprocket. Connect the idler pulley with a torque wrench and tighten the mounting bolts to between 32 and 41 foot-pounds.

4

Install the tensioner for the timing belt and tighten its mounting bolts to between 32 and 41 foot-pounds. Adjust the tension on the timing belt so that the timing belt bends between 0.16 inches and 0.24 inches when you apply a force of 5 pounds in the middle of the belt.

5

Rotate the sprocket of the crankshaft clockwise one complete turn, so that the timing marks align again. Adjust the tension on the timing belt if necessary and replace the timing belt cover with a socket wrench. Install any additional components you removed in Step 1.

The tenth generation of the Chrysler New Yorker includes the 1988 through the 1993 model years, and has little resemblance to the previous generation of the New Yorker. The standard engine for the 1989 Chrysler New Yorker is a six-cylinder, 3.0-liter engine made by Mitsubishi. This engine uses a timing belt to coordinate the movement of the crankshaft and camshaft. The timing belt wears out at regular intervals, and its replacement is a part of routine maintenance.

Instructions

1

Disconnect the cover for the front rocker arm with a socket wrench. Turn the crankshaft clockwise to align the timing mark on the crankshaft damper with the corresponding mark on the engine. Turn the crankshaft clockwise by a full turn if any of the valve springs are still compressed.

2

Remove the cable from the negative battery terminal with a socket wrench and disconnect the outer timing belt covers from the engine. Loosen the bolt on the timing belt tensioner to relieve the pressure on the timing belt and remove the timing belt. Move the tensioner away from the engine as far as possible and tighten the bolt on the tensioner.

3

Hold the camshaft sprocket in place with Spanner tool MB990775. Remove the bolt and washer from the sprocket with a socket wrench. Align the groove on the camshaft sprocket with the groove on the camshaft. Tighten the bolt on the sprocket to 70 foot-pounds with a torque wrench. Remove Spanner tool MB990775 from the sprocket.

4

Turn both camshafts clockwise to align their timing marks with the timing marks on the alternator bracket and inner timing belt cover. Turn the crankshaft clockwise to align its timing mark with the timing mark on the oil pump.

5

Install the new timing belt to the crankshaft sprocket while maintaining tension on the front side of the timing belt. Place the timing belt over the front camshaft sprocket, water pump pulley, rear camshaft sprocket and inside the belt tensioner, in that order. Keep tension on the timing belt as you install it, except for the portion on the timing belt adjuster.

6

Turn the front camshaft counterclockwise to apply tension to the timing belt. Ensure that the timing mark aligns once again, and connect the flange for the crankshaft sprocket with a socket wrench.

7

Loosen the bolt on the timing belt tensioner, causing the tensioner spring to apply tension to the timing belt. Turn the crankshaft two complete turns clockwise until its timing marks aligns once again. Tighten the bolt on the timing belt tensioner to 19 foot-pounds with a torque wrench.

8

Install the outer timing belt covers and the rocker arm cover with a socket wrench. Connect the cable for the negative battery terminal and test the vehicle for proper operation.

The Toyota Camry is a series of compact and mid-size cars in production since 1982. The 1987 model is a second generation Camry, which typically has a four-cylinder 2.0-liter engine. This engine uses a timing belt to synchronize the rotations of the camshaft and crankshaft. The timing belt on a 1987 Toyota Camry has a limited lifetime and should last at least 60,000 miles before needing replacement.

Instructions

1

Disconnect the covers for the timing belt with a socket wrench and discard their gaskets. Remove the thru-bolt and the mounting insulator on the right side of the engine. Disconnect the retaining bolts for the right engine-mounting bracket and remove the bracket.

2

Remove the timing belt guide and timing belt with a socket wrench. Disconnect the retaining bolts for the No. 1 and No. 2 idler pulleys and remove the pulleys. Detach the timing pulley for the crankshaft, using a pair of pry tools if necessary. Disconnect the retaining nut for the oil pump pulley and remove the oil pump pulley.

3

Slide the oil pump pulley onto its shaft and tighten the retaining nut to 21 ft. lbs. with a torque wrench. Align the set key on the crankshaft-timing pulley with the corresponding groove on the pulley shaft, and slide the pulley onto the shaft. Tighten the retaining bolt to 80 ft. lbs. with a torque wrench.

4

Connect the No. 2 idler pulley and tighten its retaining bolt to 31 ft. lbs. with a torque wrench. Install the No. 1 idler pulley, loosely fasten its retaining bolt and connect the tension spring. Pull the No. 1 idler pulley as far to the left as it will go and tighten its mounting bolt with a socket wrench to hold it in place temporarily.

5

Turn the crankshaft clockwise until the key groove on the crankshaft-timing pulley faces up. Place the new timing belt onto the crankshaft-timing pulley, oil pump pulley, No. 2 idler pulley and water pump pulley.

6

Turn the crankshaft pulley two complete turns clockwise until the key groove on the crankshaft-timing pulley faces up once again. Adjust the No. 1 timing pulley as needed to keep it aligned with its timing mark. Tighten the No. 1 idler pulley to 31 ft. lbs. with a torque wrench.

7

Install the bracket for the right engine mount. Tighten the bracket bolts to 38 ft. lbs. and tighten the thru-bolt to 52 ft. lbs. with a torque wrench. Connect the insulator for the right engine mount and tighten the insulator nuts to 38 ft. lbs. Install the timing belt cover with new gaskets and tighten its mounting bolts with a socket wrench.

The Cadillac Catera is a mid-sized car manufactured from 1997 to 2001. All versions of the Catera have a six-cylinder 3.0-liter engine with a double overhead cam shaft. The timing belt synchronizes the rotations of the camshafts with that of the crankshaft. It performs the same function as a timing chain, but a timing belt makes less noise and wears out a regular intervals. Its essential that you keep the crankshaft in the proper position when replacing the timing belt.

Instructions

1

Disconnect the cable from the negative battery terminal with a socket wrench to avoid starting the engine during the procedure. Remove any components needed to access the timing belt, depending on the specific model of Catera. They typically include the air intake resonator, intake plenum, splash shield and secondary air injection pipe.

2

Remove the accessory drive belt from its pulleys. Disconnect the pulleys for the water pump and power steering pump with a socket wrench. Remove the front cover for the timing belt and the crankshaft balancer.

3

Rotate the crankshaft clockwise until the timing mark on the crankshaft sprocket is 60 degrees counterclockwise from the timing mark on the oil pump. Turn the tensioner nut on the timing belt tensioner counterclockwise with a socket wrench to relieve the tension on the timing belt. Loosen the mounting bolts for the idler pulleys and remove the timing belt from its pulleys.

4

Align the dash marks on the new timing belt with the timing marks on the crankshaft sprocket and oil pump. Install the timing belt onto the crankshaft sprocket and proceed in a counterclockwise direction.

5

Turn the tensioner nut on the timing belt tensioner counterclockwise with a socket wrench far as possible. Turn the tensioner nut clockwise until the reference mark on the timing belt is 0.003 inches over the reference mark on the flange.

6

Tighten the locking nut on the timing belt tensioner by hand. Turn the crankshaft clockwise two full turns until the timing mark on the crankshaft sprocket is 60 degrees counterclockwise from the timing mark on the oil pump.

7

Turn the locking nut on the timing belt pensioner all the way counterclockwise. Tighten the locking nut until the reference mark on the timing belt is 0.078 to 0.157 inches over the reference mark on the flange.

8

Tighten the locking nut on the timing belt tensioner to 15 ft. lbs. with a torque wrench. Tighten the mounting bolts on the idler pulley 30 ft. lbs.

9

Install the crankshaft balancer and tighten its mounting bolts to 15 ft. lbs. with a torque wrench. Connect the front cover for the timing belt and tighten its bolts to 71 inch lbs. Install the pulley for the water pump and torque its bolts to 71 inch lbs. Connect the pulley for the power steering pump and pulley and tighten its bolts to 15 ft. lbs.

10

Connect the additional components needed to access the timing belt, such as the accessory drive belt, air injection pipe, splash shield, intake plenum and intake air resonator. Attach the cable to the negative battery terminal with a socket wrench.

The Volkswagen Jetta is a compact car manufactured by Volkswagen since 1979. The 1987 model is a second generation Jetta, which includes 1983 through 1992 Volkswagen Jettas. The 1987 Volkswagen Jetta has a four-cylinder, 1.8-liter engine with a single overhead camshaft, which requires a timing belt. The procedure for installing a timing belt is generally the same for all Volkswagen vehicles made from 1985 to 1989.

Instructions

1

Disconnect the battery cable on the negative terminal with a socket wrench to avoid starting the engine. Detach the accessory drive belts and the crankshaft pulley. Remove the cover for the front timing belt and replace the mounting bolt for the crankshaft pulley temporarily.

2

Turn the crankshaft clockwise to align the timing mark on the camshaft sprocket with the timing mark on the rear timing belt cover. Remove the locking nut on the pulley for the timing belt tensioner. Turn the tensioner counterclockwise to reduce the timing belt tension.

3

Install the new timing belt so that the timing mark on the tooth of the timing belt aligns with the mark on the rear cover of the timing belt. Grip the large nut on the crankshaft pulley with an open end wrench and remove the smaller locking nut with a socket wrench.

4

Turn the timing belt tensioner clockwise to place tension on the timing belt. Adjust the tension so that you can twist the timing belt 1/4 turn between the camshaft sprocket and the intermediate sprockets.

5

Turn the crankshaft clockwise by two complete turns until the timing marks align once again. Adjust the tension on the timing belt and align the timing marks again. Tighten the locking nut on the timing belt tensioner to 33 foot-pounds with a torque wrench.

6

Install the front cover on the timing belt with a socket wrench and install the accessory drive belts. Connect the cable for the negative battery terminal. Start the engine and check for a growling noise, indicating the timing belt is too tight.