SERVICE LETTER SUPPLEMENT FOR FEBRUARY 6, 1990 SL - PI3429 - PRIORITY - THE CRANKSHAFT NEEDS TO BE INSPECTED AND REPLACED IF NECESSARY IN CERTAIN 3516 MARINE, GENERATOR SET, INDUSTRIAL SPARK IGNITED, AND LOCOMOTIVE ENGINES; AND 789 TRUCKS - PI3429 - Caterpillar

U-86
A-53
AU-54
E-55.1
O-68.1
Some information needs to be changed in the Service Letter which follows:
February 6, 1990 - PI3429; The Crankshaft Needs To Be Inspected And Replaced
If Necessary In Certain 3516 Marine, Generator Set, Industrial, Spark
Ignited, And Locomotive Engines; And 789 Trucks
Under the heading Parts Needed, change the oil pan gasket to a 7E2632 Gasket-
Oil Pan in the following five lists of additional parts required.
Additional Parts For Marine Engines With 2W8864 Or 8N0464 Arrangements
Additional Parts - Marine Engines With 1W4225 And 2W8870 Arrangements
And Industrial Engines With 1W4222 Arrangements
Additional Parts List - Generator Set Engines With 8N0462 And 2W8404
Arrangements And Industrial Engines With 8N0461 Arrangements
Additional Parts List - Generator Set Engines With 7C1301 And 7C5186
Arrangements
Additional Parts List - Prime Power Lo Speed Generator Sets With
2W8871 Arrangements
Under the heading Service Claim Allowances, change the claim allowances for
3516 Generator Set, Industrial, Spark Ignited, Locomotive, and Marine Engines
as follows:
Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
(D/N*) (Sell)  (C/L) (Sell)
3516 Generator Set, Industrial, and Spark Ignited Engines
100% 120 0 0  0 0
3516 Locomotive Engines
100% 170 0 0  0 0
* Qualifies for (C/L) if sold with an OEM warranty.
Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
(C/L) (Sell)  (C/L) (Sell)
3516 Marine Engines
100% 120 0 0  0 0
In the attached Inspection And Rework Procedure, on page 2 of 2, change the
last two sentences in the second paragraph to read as follows:
Tighten all of the counterweight bolts to a torque of 70 N.m +/- 5 N.m,
and then turn 120 deg. +/- 5 deg. Use 6V4876 Thread Lube on threads and
under bolt heads to achieve proper tightness.