823907T12 Mercury CARBURETOR, (WMC-85A)

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.
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 "PS4100" 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.
Termination Date
December 31, 1998Problem
The Timing Advance Unit (Gear & Weight Assembly) may fail on certain 3208 Industrial Engines.
Affected Product
Model & Identification Number
Group 1
3208 (03Z12052, 03Z12067, 03Z12072, 03Z12073, 03Z12192, 03Z12218, 03Z12245 , 03Z12260, 03Z12273, 03Z12283, 03Z12290, 03Z12301, 03Z12304, 03Z12306 , 03Z12307, 03Z12336, 03Z12339, 03Z12342, 03Z12349-12350, 03Z12352 , 03Z12356, 03Z12368, 03Z12508, 03Z12530, 03Z12531, 03Z12557, 03Z12577 , 03Z12733, 03Z12741, 03Z12762, 03Z12773, 03Z12787, 03Z12799, 03Z12804 , 03Z12811, 03Z12822, 03Z12823, 03Z12828, 03Z12833, 03Z12845, 03Z12847 , 03Z12868, 03Z12872, 03Z12893-12895, 03Z12902, 03Z12904, 03Z12906 , 03Z12907, 03Z12913, 03Z12990, 03Z13013-13015, 03Z13021, 03Z13028 , 03Z13064, 03Z13071, 03Z13086, 03Z13087, 03Z13106, 03Z13121, 03Z13127 , 03Z13128, 03Z13155-13157, 03Z13166, 03Z13167, 03Z13170, 03Z13185 , 03Z13186, 03Z13202, 03Z13232, 03Z13236, 03Z13241, 03Z13265, 03Z13267 , 03Z13271, 03Z13310, 03Z13332, 03Z13381, 03Z13382, 03Z13391, 03Z13392 , 03Z13420, 03Z13450, 03Z13462, 03Z13464, 03Z13475, 03Z13481, 03Z13505 , 03Z13547, 03Z13566, 03Z13590, 03Z13593-13595, 03Z13601, 03Z13603 , 03Z13606, 03Z13616, 03Z13618, 03Z13620, 03Z13624, 03Z13626, 03Z13628 , 03Z13631, 03Z13648, 03Z13667, 03Z13672, 03Z13687, 03Z13696, 03Z13701 , 03Z13703, 03Z13712, 03Z13715, 03Z13722, 03Z13723, 03Z13726, 03Z13731 , 03Z13745, 03Z13747, 03Z13754, 03Z13770, 03Z13775, 03Z13792, 03Z13832-13834 , 03Z13838-13843, 03Z13846-13848, 03Z13855, 03Z13856 , 03Z13857, 03Z13862-13867, 03Z13871, 03Z13872, 03Z13874-13876 , 03Z13878-13882, 03Z13897, 03Z13899-13901, 03Z13907 , 03Z13909, 03Z13910, 03Z13912, 03Z13922-13927, 03Z13929, 03Z13931-13933 , 03Z13936, 03Z13937, 03Z13939, 03Z13940, 03Z13942, 03Z13944-13946 , 03Z13948, 03Z13950, 03Z13951, 03Z13954-13957, 03Z13960 , 03Z13964, 03Z13966, 03Z13975, 03Z13976, 03Z13980, 03Z13982, 03Z13985 , 03Z13987-13989, 03Z13992-13995, 03Z13997-14000, 03Z14042-14047 , 03Z14049, 03Z14050, 03Z14053, 03Z14057, 03Z14059, 03Z14063 , 03Z14083-14085, 03Z14099, 03Z14100, 03Z14102-14104, 03Z14106 , 03Z14107, 03Z14109-14121, 03Z14151, 03Z14154-14157, 03Z14160-14163 , 03Z14165-14167, 03Z14172, 03Z14173, 03Z14175-14180 , 03Z14182-14189, 03Z14191-14197, 03Z14200, 03Z14202 , 03Z14203, 03Z14205-14211, 03Z14213, 03Z14217, 03Z14223-14225 , 03Z14228-14233, 03Z14235-14237, 03Z14241, 03Z14242 , 03Z14244, 03Z14246-14249, 03Z14253-14259, 03Z14263, 03Z14264 , 03Z14266, 03Z14268, 03Z14269, 03Z14278-14282, 03Z14297, 03Z14298 , 03Z14301-14303, 03Z14313-14315, 03Z14317-14325, 03Z14327-14329 , 03Z14331-14352, 03Z14354, 03Z14356-14361, 03Z14364-14373 , 03Z14375, 03Z14377-14387, 03Z14389, 03Z14393-14395 , 03Z14403, 03Z14405-14410, 03Z14412-14416, 03Z14418 , 03Z14420, 03Z14452-14455, 03Z14457-14462, 03Z14466, 03Z14467 , 03Z14471-14473, 03Z14484, 03Z14485, 03Z14487-14505, 03Z14510 , 03Z14511, 03Z14514-14516, 03Z14519, 03Z14520, 03Z14525, 03Z14526 , 03Z14528, 03Z14529, 03Z14532, 03Z14535, 03Z14538-14540, 03Z14545 , 03Z14546, 03Z14548-14553, 03Z14562, 03Z14563, 03Z14565, 03Z14566 , 03Z14568, 03Z14571, 03Z14572, 03Z14576-14578, 03Z14580-14585 , 03Z14587-14589, 03Z14592-14594, 03Z14596-14601, 03Z14606 , 03Z14608-14610, 03Z14612, 03Z14617-14619, 03Z14621, 03Z14624 , 03Z14627, 03Z14628, 03Z14630, 03Z14631, 03Z14642-14650, 03Z14655-14666 , 03Z14675-14683, 03Z14695)
Group 2
3208 (03Z13826, 03Z14765, 03Z14875, 03Z14974, 03Z14976-14989, 03Z14992, 03Z14993 , 03Z15139, 03Z15144, 03Z15153, 03Z15176, 03Z15178, 03Z15201, 03Z15211 , 03Z15285, 03Z15293, 03Z15307, 03Z15359, 03Z15361, 03Z15365, 03Z15368 , 03Z15370, 03Z15371, 03Z15373, 03Z15375, 03Z15377, 03Z15379, 03Z15381 , 03Z15382, 03Z15384, 03Z15412)
Group 3
3208 (03Z14877, 03Z14991, 03Z15142, 03Z15146, 03Z14149, 03Z15151, 03Z15152, 03Z15154 , 03Z15164, 03Z15166, 03Z15173, 03Z15180, 03Z15189, 03Z15191, 03Z15192 , 03Z15209, 03Z15213, 03Z15215, 03Z15216, 03Z15219, 03Z15292, 03Z15306 , 03Z15325)
Parts Needed
Group 1
1 - 7C6660 Seal Group1 - 7E2888 Gear-Fuel Pump1 - 3J4538 Screw1 - 6V3789 Gasket Kit1 - 6V6401 Gasket Kit1 - 1227367 Washer1 - 1456103 Gear & Weight Assembly (Tmg Advance Unit 5-degree)Group 2
1 - 7C6660 Seal Group1 - 7E2888 Gear-Fuel Pump1 - 3J4538 Screw1 - 6V3789 Gasket Kit1 - 6V6401 Gasket Kit1 - 1227367 Washer1 - 1456100 Gear & Weight Assembly (Tmg Advance Unit 0-degree)Group 3
1 - 7C6660 Seal Group 1 - 7E2888 Gear-Fuel Pump 1 - 3J4538 Screw 1 - 6V3789 Gasket Kit 1 - 6V6401 Gasket Kit 1 - 1227367 Washer*1 - 1456100 Gear & Weight Assembly (Tmg Advance Unit 0-degree)*Part supplied direct from Caterpillar at no charge to the Dealer or the Customer.Action Required
Remove the Timing Advance Unit and Fuel Pump Drive Gear, and install the new parts listed in the "Parts Needed" section of this service letter.
Service Claim Allowances
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.