GM Service Manual Online
For 1990-2009 cars only

GENERATOR BRACKET MOAN REPLACE BRACKET

An objectionable moan, caused by the generator brackets, may be heard inside the vehicle on some 1978-83 Chevrolets equipped with a V8 diesel engine (LF9 Code N) and air conditioning.

Should this condition be encountered, confirm the source of the moan by removing the generator belt. If the moan, improves or is corrected with the belt removed, Generator Bracket Kit, P/N 22520345, should be installed. The bracket kit is available from WDDGM and contains instruction sheets and all necessary parts to complete this installation of all 1978-83 diesel engines equipped with air conditioning.

The following part numbers are included in kit, P/N 22520345:

Instruction sheets - six (6) included. 1. 22520047 Bracket - Generator Adjusting - 1978-82. 2. 22520045 Bracket - Generator Adjusting - 1983. 3. 22520046 Brace Assembly - Generator. 4. 22519989 Spacer. 5. 22510585 Bolt - Cylinder Head. 6. 22509591 Stud/Bolt - Air Crossover. 7. 11500821 Bolt - Generator. 8. 9417954 Nut. 9. 271505 Nut.

WARRANTY INFORMATION

Generator Brackets Kits installed under warranty must be submitted using the following information.

Failed Trouble Operation Labor Usage P/N Code Number Hours

1978-82 22520345 92 T0118 0.6 1983 - refer to the appropriate labor operation in the 1983 Labor Time Guide.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.