REMOVAL & INSTALLATION
See Figure 1
The one-piece intake and exhaust manifolds on these engines are known as combination manifolds and are serviced as a unit.
- Remove the air cleaner. Disconnect the accelerator cable. Remove the accelerator retracting spring.
- On a vehicle with automatic transmission, remove the kickdown rod retracting spring. Remove the accelerator rod bellcrank assembly.
- Disconnect the fuel inlet line and the distributor vacuum line.
- Disconnect the muffler inlet pipe from the exhaust manifold.
- Disconnect the power brake vacuum line, if so equipped.
- Remove the bolts and nuts attaching the manifolds to the cylinder head. Lift the manifold assemblies from the engine. Remove and discard the gaskets.
- To separate the manifold, remove the nuts joining the intake and exhaust manifolds.
- Clean the mating surfaces of the cylinder head and the manifolds.
- If the intake and exhaust manifolds have been separated, coat the mating surfaces lightly with graphite grease and place the exhaust manifold over the studs on the intake manifold. Install the lockwashers and nuts. Tighten them finger tight.
- Install a new intake manifold gasket.
- Coat the mating surfaces lightly with graphite grease. Place the manifold assemblies in position against the cylinder head. Make sure that the gaskets have not become dislodged. Install the attaching nuts and bolts in the proper sequence to 26 ft. lbs. If the intake and exhaust manifolds were separated, tighten the nuts joining them.
- Position a new gasket on the muffler inlet pipe and connect the inlet pipe to the exhaust manifold.
- Connect the crankcase vent hose to the intake manifold inlet tube and position the hose clamp.
- Connect the fuel inlet line and the distributor vacuum line.
- Connect the accelerator cable and install the retracting spring.
- On a vehicle with an automatic transmission, install the bellcrank assembly and the kickdown rod retracting spring. Adjust the transmission control linkage.
- Install the air cleaner.