CYLINDER GP-BACKHOE BUCKET 6E1964 - Caterpillar

Caterpillar: Confidential Yellow
PSP FOR INSTALLING NEW WATERCOOLED EXHAUST MANIFOLDS ON CERTAIN 3508, 3512, AND 3516 MARINE ENGINES - PS0415 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA, MARINE TEPS
  The information supplied in this service letter may not be valid after the termination date of this program.   Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
U-56 A-29 AU-33 E-32 O-47 TM-4 1059 PS0415 This Program can only be administered after a failure occurs, however, if one bank fails the other bank should be repaired at the same time before failure. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0 " as Part Number, "7755" as Group Number, and "96" as Description Code. This Service Letter replaces the July 28, 1988 Service Letter - PS4206. Termination Date
March 31, 1991
Problem
The water cooled exhaust manifolds may crack and leak on certain 3508, 3512, and 3516 Marine Engines.
Affected Product
Model Identification Number 3508 96Y1-987 69Z1-508 3512 50Y1-838 66Z1-356 3516 29Z1-913 72Z1-391
Parts Needed
***** 3508 Engines ***** 8 - 7E1754 Gasket-Exhaust Manifold 16 - 4F7389 Seal-Upper Water Lines Group 8 - 8F4994** Seal-Turbo Water Lines Group 4 - 7L4773* Seal-Turbo Water Lines Group 2 - 7M7273 Gasket-Manifold