1990/09/17 Caterpillar

Be Sure To Use Correct Piston Pin With New Pistons {1225,1214}

Usage:

3500 Family Of Spark-Ignited Engines ( 2JF, 3RC, 4KC )

A new series of pistons is being phased into production for the 3500 Family Of Spark-Ignited Engines. These pistons provide additional strength and resistance to pulling apart.

Currently, Caterpillar is supplying the field with only the new piston design. It is important to note that the new piston requires the use of a new profiled piston pin that is 4.6 mm (.18") longer than the former pin.

Be aware of this change when ordering and replacing pistons. The chart lists the piston and corresponding pin part numbers. The use of the shorter, former 7C8610 Pin with the new 7E7600 or 7E7940 Piston will result in excessive end play of the pin in the bore. This can result in failure of the piston pin retaining snap ring.

Caterpillar Information System:

1990/09/17 New Cylinder Head Group Available For Landfill Applications {1100,1104,1105}

1990/09/17 Special Instruction SEHS9177, Has Adjustment Procedure For Door Latch Assemblies And Strikers {7308}

1990/09/10 Voltage Regulator Droop Connections Are Shown Incorrectly In Service Manuals{4475}

1990/09/10 New Timing Specifications{1552}

1990/09/10 New Remanufactured 0R6183 Control Group (Personality Module) Available{1902}

1990/09/10 New Alternator Drive Vee Belt Available{1357,1405}

1990/09/10 Engine Oil Lines Group Available To Relocate Oil Filter On 3208 Marine Engines{1318}

1990/09/10 New Stainless Steel Plug Used In Aftercooler Core Assembly{1064}

1990/09/03 New Service Tools Available{0600,0700}

1990/09/03 New Latching Fuel Solenoid Assemblies{1259}

1990/08/20 New Manifolds And Bellows Assemblies Used In Exhaust Manifold Group {1059}

1990/08/20 Injector Timing Standardized {1272,1290}

1990/09/17 New 4P0329 Pleasure Craft Cruise Kit Available For 3208 Marine Engines {1000}

1990/09/24 Sealing Threads On Switches And Sensors That Are Grounded Through The Case{1400,1900,3175,7422,7493}

1990/09/24 Standard Oval And High Temperature Oval Head Seals Available For Certain Hydraulic Cylinder Applications{7555,5102,5456}

1990/09/24 Incorrect Throttle Adjustment Can Cause Engine Surge{1913,0782,1900}

1990/09/24 Add Bolt Dampers To Oil Pump Mounting Bolts to Prevent Bolt Failures{1304}

1990/10/01 What's Your Answer? {0114,1400}

1990/10/01 Correct Light Bulb Replacement For The 8T9290 Borescope; New Light Bulb Used {0777}

1990/10/01 New 4C6090 Multichannel Temperature Selector Available To Aid In Diagnosing Low Power Complaints {0781}

1990/10/01 Incorrect Installation Of Slow-Moving Vehicle Sign (Triangle) May Affect Cooling Performance {7405,1353,7557}

1990/10/01 Answers To Quiz In This Issue {0114,1400}

1990/10/08 Serviced Parts Available For 8C4773 Electric Starting Motor Group{1453}

1990/10/08 Improved 4J3815 Gasket Helps Prevent Oil And Air Leaks In Hydraulic Tank Mounting And Filler Groups{5065}