0306417 EVINRUDE SCREW, Spring to carb

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PSP FOR INSTALLING DETONATION SENSITIVE TIMING CONTROLS ON CERTAIN 3512 AND 3516 SI ENGINES - PS4400 - MAILED US AND CAN ADA, CACO, COSA
  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-24 A-18 O-21 1000 PS4400 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 "PS4400" as Part Number, "7755" as Group Number, and "96" as Description Code. Termination Date
February 28, 1991
Problem
Under certain operating conditions detonation may cause damage to certain 3512 and 3516 SI Engines. Detonation sensitive timing controls can be installed to retard engine timing or shut down the engine when detonation occurs.
Affected Product
Model Identification Number 3512 4KC1-118 3516 3RC1-145, 148-152
Parts Needed
***** 3512 SI Engines ***** See Special Instruction SEHS9086 Installation of Engine Timing Control on 3512 Spark Ignited Turbocharged and Aftercooled Engines. ***** 3516 SI Engines ***** See Special Instruction SEHS9110 Installation of Engine Timing Control on 3516 Spark Ignited Turbocharged and Aftercooled Engines.
Action Required
Install the parts as described in Special Instructions SEHS9086 for 3512 SI Engines or in Special Instruction SEHS9110 for 3516 SI Engines.
Service Claim Allowances
***** 3512 and 3516 SI Generator Set Engines ***** Product Caterpillar Dealer Suggested Customer Suggested smu Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Cost) (C/L) (Sell) 0-16000 100% 12 0 12 0 0 16001- 100% 4 0 4 0 4 24000 hrs This is a 24-hour job. ***** All Other 3512 and 3516 SI Engines ***** Product Caterpillar Dealer Suggested Customer Suggested smu Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (C/L) (Sell) (C/L) (Sell) 0-16000 100% 24 0 0 0 0 16001- 100% 12 0 0 0 12 24000 hrs This is a 24-hour job.
Parts Disposition
All parts removed (with the exception of cores used for Caterpillar Remanufactured parts) should be rendered useless and scrapped immediately upon completion of the repair.