VALVE GP-RELIEF 6E4402 - Caterpillar

Product Support Program For Replacing The Intake And Exhaust Valves In Certain 3176B, 3176C And 3196 Marine Engines
SMCS - 1105 PS4371
May 13, 1998
(Revised August 1999)
U-131
A-121
AU-92
S-57
H-44
O-115
TM-5 This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4371" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
This Revised Service Letter replaces the May 13, 1998 (Revised July 1998) Service Letter. Changes have been made to the TERMINATION DATE, Affected Product, Parts Needed, Action Required, and Servive Claims Allowances.
Termination Date
December 31, 1999Problem
The intake or exhaust valve may fail on certain 3176B, 3176C and 3196 Marine Engines.
Affected Product
Model & Identification Number
3176B (9WK1-837)
3176C (6BW1-401)
3196 (2XR1-1271)
Parts Needed
3176B1 - 1517456 Gasket Kit 12 - 1570671 Valve-Exhaust12 - 1570672 Valve-InletAftercooler Gaskets2 - 3P0649 Seal2 - 4P3871 Gasket3 - 9X7287 Seal2 - 1095307 Gasket1 - 1161071 Gasket 3176C/31961 - 164-4581 Gasket Kit12 - 1570671 Valve-Exhaust12 - 1570672 Valve-InletAftercooler Gaskets1 - 9M9989 Gasket2 - 3P0649 Seal2 - 4P3871 Gasket3 - 9X7287 Seal2 - 1095307 Gasket 3176B/3176C/3196Use As Required1382005 Exhaust Insert *1382005 Exhaust Insert *Action Required
Before beginning the rework, take a picture of the area to be worked on and again when the work is complete to assure the boat has been left in the same condition after the repair was completed.
1. Remove the cylinder head following the instructions