C 10 1/2 Ton Pickup 2WD V8-379 6.2L DSL VIN C FI (1982)
Starter Motor: All Technical Service Bulletins
Starting System - No Start, New Starter Motor
Number:
85-197
Section:
6D
Date:
APR., 1986
Subject:
27MT STARTING MOTORS ON 6.2L DIESEL ENGINES
Model and Year:
1982-85 CKPG 10-30 WITH 6.2L DIESEL ENGINES
TO:
ALL CHEVROLET DEALERS
Some 6.2L diesel engines may experience starter motor and flex plate teeth milling which could cause a no start condition. A newly designed starter
drive housing is available through WDDGM to alleviate this condition. The 1986, 6.2L engine starter motor does not require shims during initial
assembly and can be identified by the words "No Shim" on the end drive housing. To retrofit pre-1986 starter motor assemblies, the following parts are
used:
Description
Model
Quantity
Part Number
Starter Drive End Housing
C,G,P
(1)
10496542
K
(1)
10496538
Mounting Bolts
All
(2)
15544950
Mounting Washers
All
(2)
22521054
Shim (1.0 mm)
All
(Max 2)
23500396
^
Disassemble the starter per instructions in Section 6D Engine Electrical in the Light Duty Truck Service Manual.
^
Inspect the flywheel/flexplate and starter drive gear for damage and replace as required.
^
Discard old starter mounting bolts.
^
Install new starter end housing and starter assembly.
^
Reassemble as per instructions in Section 6D Engine Electrical, in the Light Duty Truck Service Manual.
The new starter mounting bolts should be torqued to 35-40 N-m (25-30 ft.lbs.). If a noise occurs during cranking or after the engine fires on pre-1986
engines, the starter may need to be shimmed. The redesigned 1.0 mm shim (P/N 23500396) should be installed to correct the condition. Do not use more
than 2.0 mm of shims. Slotted shims as used previously should not be used because they do not provide sufficient support for the aluminum starter end
housing. This lack of support will cause housing wear and eventual loss of mounting bolt torque.
