Fuel Meter Body: Service and Repair

CLEANING AND INSPECTION PROCEDURE

NOTE: Cover the injector sockets in order to prevent dirt and other contaminants from entering the open fuel passages.

Removing the fuel meter Body assembly from the engine requires removing the top portion of the intake manifold, called the upper manifold assembly and throttle Body.

An 8 - digit part identification number is on a mylar label affixed to one of the fuel meter Body assemblies. Refer to this number if servicing or part replacement is required.

- NOTE: Do not use a cleaner which contains methyl ethyl ketone. This extremely strong solvent may damage components and is not necessary for this type of cleaning.
Use a carburetor cleaner in order to remove deposits.
Refer to the instructions provided with the cleaner.

- Before removal, the fuel meter Body assembly may be cleaned with a spray type engine cleaner, GM X-30A or the equivalent.
- Follow the package instructions.
- Do not soak fuel meter Body assemblies in liquid cleaning solvent.

REMOVAL

1. CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

Disconnect the negative battery cable.

2. Relieve the fuel system pressure.




3. Remove the electrical connector to the fuel meter Body.




4. Remove the fuel feed and the return hoses from the engine fuel pipes.
5. Remove the upper manifold assembly.






6. IMPORTANT: When disconnecting the poppet nozzles, remember the sequence in order to ensure correct poppet nozzle placement to each cylinder.

Squeeze the poppet nozzle locking tabs together while lifting the nozzle out of the casting socket.




7. Remove the fuel meter Body from the bracket by releasing the lock tabs on the bracket.

INSTALLATION






1. NOTE: Refer to Fastener Note in Service Precautions.

Install the fuel meter Body assembly in the intake manifold.

Tighten
Tighten the fuel meter Body attaching bolts to 10.0 N.m (88 lb in).

2. CAUTION: Verify that the poppet nozzles are firmly seated and locked in their casting sockets in order to reduce the risk of fire and personal injury.

3. An unlocked poppet nozzle could work loose from its socket thus resulting in a fuel leak.
4. Push the fuel meter Body into the bracket.
5. Make sure all of the tabs are locked into place.






6. IMPORTANT: The fuel meter Body assemblies are numbered to indicate poppet nozzle order.

Push the poppet nozzles into the casting sockets.

7. Inspect the poppet nozzles in order to ensure they are firmly seated and locked in the casting sockets.




8. Connect the upper manifold electrical connector.




9. Install the new O-ring seal on the engine fuel feed and the return pipes.
10. Install the fuel feed and the return hoses to the engine fuel pipes.

Tighten
Tighten the fuel pipe nuts to 30.0 N.m (22 lb ft).

11. Inspect for fuel leaks.
1. Connect the negative battery cable.
2. Turn ON the ignition switch for 2 seconds.
3. Turn the ignition switch to the OFF position for 10 seconds.
4. Turn the ignition switch back to the ON position.
5. Check for fuel leaks.
12. Tighten the fuel filler cap.