Ciera V6-173 2.8L VIN W FI (1986)
Flex Plate: All Technical Service Bulletins
Flywheel - Excess Paint in Mounting Bolt Holes
NUMBER:
86-T-77
CORP.REF.NO.: 136001
DATE:
May 1991
SECTION:
6A
SUBJECT
EXCESS PAINT IN FLYWHEEL MOUNTING HOLES
2.5L GOODWRENCH ENGINE, P/N 10101781 CLEAN MOUNTING HOLES
MODELS/YEARS
1984-86 CUTLASS CIERA
Condition:
Incorrect clamp load on flywheel bolts.
Cause:
Paint accumulation in the crankshaft flywheel mounting holes. This will result in an inadequate (false) torque condition. The flywheel may
appear secure, however, it can begin to loosen under normal engine operating conditions and the mounting holes in the flywheel may elongate.
Correction:
The flywheel mounting hole threads should be cleaned out by retapping with a M-10X1.5-6H standard tap.
NOTE:
THIS BULLETIN APPLIES TO GOODWRENCH PARTIAL ENGINES ONLY (P/N 10101781)
