REMOVAL & INSTALLATION
Six-Cylinder Engine Combination Manifold
- Remove the air cleaner and the fuel line from the carburetor.
- Disconnect the accelerator linkage. Detach the vacuum lines, crankcase vent hose, carburetor vent line, carburetor air heater, and automatic choke rod.
- Disconnect the exhaust pipe at the exhaust manifold flange. Remove the carburetor.
- Remove the manifold assembly-to-cylinder head nuts and washers and remove the intake and exhaust manifolds as a single unit. The manifolds may be separated by removing the three bolts which hold them together.
- Installation is the reverse of the removal procedure. When installing the manifold assembly, use new gaskets and a good commercial sealer. Loosen the three bolts which secure the intake manifold to the exhaust manifold to maintain proper alignment in relation to each other and the block. Torque these three bolts to 20 ft. lbs. in this sequence: inner bolts first, then the outer two bolts. Tighten the manifold assembly to cylinder head nuts to 10 ft. lbs.
- Drain the cooling system and disconnect the battery.
- Remove the air cleaner and fuel line from the carburetor. Disconnect any interfering air pump system components.
- Disconnect the accelerator linkage.
- Remove the vacuum control line between the carburetor and distributor.
- Remove the distributor cap and wires.
- Disconnect the coil wires, temperature sending unit wires, and heater and by-pass hoses.
- Remove the intake manifold securing bolts and remove the manifold and carburetor as an assembly.
- To install the manifold, reverse the removal procedure. Be sure to tighten the manifold in three steps and remember to use a good commercial sealer on new manifold gaskets.