Saturday, November 23, 2013
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Labels:
converter,
procedures,
service,
torque
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A cars engine needs a pathway, as well as a power amplifier, to move torque from the engine to the transmission, which propels a vehicle forward. A torque converter is the device that provides this.
The torque converter is situated between the engine and transmission. It functions as a multiplier for the power generated from the engine to the motion of the transmission. It also helps muffle vibration from the drivetrain and engine components.
The torque converter is a completely sealed assembly, which does not allow for any maintenance or servicing. But there is a way to test it called a stall test. Turn the car on and make sure the parking brake is engaged, as well as securing the wheels by chocking them. Press both the brake and accelerator pedal down together and see what RPM the car reaches. Check the typical RPM the vehicle usually achieves with the vehicle manufacturer. If it is lower than mandated, the torque converter may be slipping.
This stall test tends to put strain on the transmission. It is recommended to only perform this test in five second intervals.
Friday, October 25, 2013
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Labels:
alternator,
cobra,
for,
installation,
mustang,
procedures,
the
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The Ford Mustang Cobra is a powerful sports car and requires a lot of voltage to operate the engine accessories. The Cobras electrical components are powered by the alternator and once the alternator fails, it needs to be replaced. Installing a new alternator needs to be done in the proper procedure to ensure it operates correctly. The old alternator must be removed first so the new alternator can be installed.
The battery stores power and is charged by the alternator of the Mustang Cobra. Both the negative ("-") and positive ("+") battery terminals need to be removed from the battery, in that order, so power or voltage is not being sent to the alternator. This needs to be done to ensure the alternator does not shock the mechanic working on the component.
The alternator on the Mustang Cobra has power cables or terminals that need to be removed before loosening the attachment bolts. The terminal connections are locked into place with a clip that needs to be pulled up. Once the clip is pulled up, the terminal connection can be pulled apart, disconnecting the alternator power terminal. A nut holds another terminal onto the back of the alternator. The bolt can be removed with a ratchet and socket or a box-end wrench.
The alternator on the Mustang Cobra is held in place by two attachment bolts. Both bolts need to be loosened in order to remove the timing or serpentine belt. The bolt on the bottom of the alternator is the pivot bolt. Once the bolts are loosened, the alternator can be turned slightly on the pivot bolt so the serpentine belt can be removed. The bolts can then be removed from the alternator and the alternator can be removed from the mounting brackets.
The new alternator can be placed back onto the mounting brackets of the Mustang Cobra engine. The attachment bolts can then be installed and tightened down holding the alternator in place. Leave the attachment bolts slightly loose so the alternator can pivot. The serpentine belt can be placed back onto the alternator pulley.
Since the alternator is still loose, tension on the serpentine belt can be performed. A small crow-bar or pry-bar can be slid between the alternator and the mounting brackets. Pressure can then be placed on the alternator rotating on the pivot bolt and tightening the serpentine belt. Pressure needs to be maintained on the serpentine belt as the attachment bolts are tightened into place. This keeps the tension on the serpentine belt.
The alternator power terminals and battery cables need to be replaced on the Mustang Cobra. Slid the back terminal onto the screw terminal and tighten the nut onto the end. The power terminal connection can be slid back into place, ensuring the locking clip snaps back into place. The positive and negative battery cables need to be put back on the battery terminals and tightened down. Make sure the black cable goes onto the negative side of the battery and the red cable goes onto the positive side of the battery.
