Engine - Workshop Manual Updates and Revisions

83amcjeep2

6E021
MARCH 1983
1981-83 AMC
ENGINE Attention: Workshop, Parts Department


WORKSHOP MANUAL UPDATES AND REVISIONS

1. SERPENTINE DRIVE BELT
2. CEC SYSTEM DIAGNOSTIC TESTS - 1983 SIX-CYLINDER ENGINES

1. SERPENTINE DRIVE BELT

The serpentine drive belt used on 1981-83 AMC models can be expected to develop some random cracks in one or more of the belt ribs during the life of the belt, These random or sporadic cracks are a normal development that usually occurs during the latter part of the belt's service life. The cracks do not affect belt performance and actually improve belt flexibility.

The only time belt replacement for rib cracking is warranted, is when the cracks are at or beyond the full depth of the rib, or if some of the cracks run parallel to the belt ribs.

Make a note of this information in the serpentine drive belt diagnosis charts in Chapter 1C of the 1981-82 AMC Technical Service Manuals.



2. CEC SYSTEM DIAGNOSTIC TESTS - 1983 SIX-CYLINDER ENGINES

The CEC system diagnostic chart needs to be revised. This chart is found on page 76 of Supplement No. 1 to the 1982 AMC Technical Service Manual. Please revise the indicated chart box by changing the diagnostic connector pin number from pin 12 to pin 10 as shown on the sample page.