Repair 7

How to Remove the Exhaust Manifold on a Ford Six Cylinder 300

Removing an exhaust manifold from a six-cylinder Ford 300 engine is not difficult. This engine actually has two exhaust manifolds, one on the left and one on the right. If the gasket goes bad between the manifold and the engine block, you need to replace it. Likewise, if the manifold starts to crack, you will need to replace it. Removing the exhaust manifold yourself can save you money on labor charges at an auto-repair garage.

Instructions

Left Manifold

1

Open the hood and prop it safely with the support. Remove the oil dipstick bracket using a wrench. Remove the air cleaner unit from the carburetor by turning the thumbscrew and pulling the entire assembly away from the engine. Remove the servo bracket assembly using a wrench. Label the proper location of each of the spark plug wires with a marker and masking tape. They must go back to the same location that you took them off.

2

Pull each wire from the plug by grasping the boot and pulling it away from the spark plug. Disconnect the oxygen sensor wire by pulling it off the fitting. Lift the vehicle on the front end with the automobile jack. Place a jack stand under the vehicle near the jacking point and raise it to the frame. Crawl under the vehicle and disconnect the exhaust pipe from the exhaust manifold using a wrench. Remove the jack stand from under the vehicle. Lower the vehicle to the ground.

3

Remove the bolts attaching the exhaust manifold to the engine block using a socket set. Pull the manifold and gasket away from the engine block.

Right Manifold

4

Remove the air cleaner from the engine. Do this if you are removing the left exhaust manifold as well. Disconnect the transmission dipstick tube from the engine using a wrench to release the nut. Remove the Thermactor hose and the air tube bracket using a wrench. Label the spark plug wires with a marker and masking tape. They have to go back on the way they came off. Unplug the ignition coil and plug wires by grasping the boots and pulling them away.

5

Remove the spark plugs using a socket, ratchet and extension. Remove the heat shield using a wrench to loosen the bolts. Lift the automobile using the automobile jack. Support the vehicle by placing a jack stand under the vehicle near the jacking point and raising it to the frame. Crawl under the vehicle and disconnect the exhaust pipe from the exhaust manifold. Remove the jack stand from under the vehicle. Lower the automobile to the ground.

6

Remove the exhaust manifold from the engine using a socket and ratchet to loosen the bolts. Remove the inner heat shroud and EGR tube as an assembly from the cylinder head using a wrench.