Be Sure Correct Piston Cooling Jets Are Installed{1331}
Usage:
Caterpillar Machines Powered By 3400 Engines
Be sure the correct piston cooling jets are installed in the engine. If a broken piston cooling jet, or a seized piston are found in an engine, refer to the parts manual for the correct piston cooling jet part numbers. The chart is provided for reference only. Do NOT assume that because all the other jets look the same, that they are the correct jet for the piston.
The color code identified in the chart is a method of identification for the factory and may not be visible after the engine has been operated.
Piston Cooling Jet Reference Chart
Caterpillar Information System:
1994/11/28 Improved Spring Used In Belt Tightener Groups{1358}
1994/11/28 Screened Filter For Implement Motor Case Drain Return Line{5720,4351,4921}
1994/11/28 New Front Axle Shims Make Adjustment Easier{3250}
1994/11/28 Radiator Mounting Bolt Damage{1353}
1994/11/28 Fixture Can Be Used To Simplify Challenger Radiator Support Installation.{1353}
1994/11/21 3054 And 3056 Machine Engine Fuel Injection Pump Service{1251}
1994/11/21 New Speed/Timing Sensor Provides Parts Commonality For Electronic Unit Injector (EUI) Engines{1907}
1994/11/21 Wheel Bearing Check And Adjustment Maintenance Interval {4208}
1994/11/21 New Tank (Oil Saver) Used In Rear Axle Assembly{3260}
1994/11/21 Improved Bracket In Turbocharger Support Group Provides Improved Access To Exhaust Bypass Group (Wastegate){1073,1057}
1994/11/21 New Bearing Housing Used In Turbocharger Group{1056,1052}
1994/11/21 New Air Dryer Check Valve Assembly Used{4285}
1994/12/05 New Differential Group Housing Used In The Output Gear Group{3159}
1994/12/05 New Muffler Bracket Improves Muffler Support{1062}
1994/12/05 Hardened Spacers Used In Steer Pivot{4300,7051,7066}
1994/12/05 Flexible Hose Assembly Replaces Tube Assemblies In Turbocharger Water Lines Groups{1380}
1994/12/05 Dry Start Priming Procedure for 3500 Machine Engines with Electronic Unit Injection (EUI){1250,1258}
1994/12/12 Procedure For Measuring Oscillating Hitch Wear {7113,7114}
1994/12/12 Procedure To Bleed And Charge The Rear Suspension{7213}
1994/12/12 Caterpillar Hose Press And Tool Usage{5057,0684}
1994/12/12 Injector Solenoids on Engines Equipped with EUI Are Not Polarity Sensitive{1259}
1994/12/12 Serviceable Parts For Custom Option Engine Prelube Group{1319}
1994/12/12 New Exhaust Bypass Valve (Wastegate) Used In Exhaust Bypass Group{1057}
1994/12/12 New Cylinder Blocks Made From Stronger Alloy{1201}