1983/10/26 Caterpillar

New Seal And Washer Will Prevent The Flow Of Dirty Fuel Past The Filter

Usage:

3508, 3512 And 3516 Industrial And Generator Set Engines Equipped With A Fuel Filter Change Indicator Group

Description of Change: A new seal and washer are used with the indicator assembly in the fuel filter change indicator group on the above engines. The washer that is used with the new seal will help hold the seal in the correct position. Formerly, a washer was not used with the seal. This permitted the seal to be pinched (twisted) during assembly. This pinched seal would let dirty fuel flow past the filter.

Adaptable As: The new 5P840 Seal and 5P4115 Washer are a direct replacement for the former 3H2388 Seal. See the Illustration for the location of the new parts.

Location of new parts in the 8N8511 Fuel Filter Change Indicator Group.

Caterpillar Information System:

1983/10/26 New Exciter Stator Field Core Assembly And Bracket

1983/10/26 Oil Shield And Rotocoil Must Be Installed Together For Acceptable Oil Control

1983/10/26 Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures

1983/10/26 New Service Centers For 6V3100 Engine Timing Indicator Group

1983/10/26 List of Service Publications

1983/10/26 New Air Starting Motor Has A Slip-Clutch Type Drive Gear

1983/10/26 Changes Made To Identification Marks On Connecting Rod Assemblies

1983/10/26 Changes Made To Air Intake Shut-offs And Contactor Groups

1983/10/26 Remanufactured Fuel Pump And Governor Groups

1983/10/26 Modification Of Control Panel Gives Different Power Source For Overcrank Timer To Prevent Starter Motor Failures

1983/09/14 Improved Voltage Regulator Assembly Now Used

1983/09/14 Engine Ground Straps Necessary To Prevent Electrical Discharge Damage To Crankshaft Bearings

1983/10/26 New Oil Pump Has Bypass Valve And Oil Return Passage Inside The Pump

1983/10/26 Improved Lower Shaft Bearing Now Used

1983/10/26 Service Information For Woodward Governors

1983/10/26 Broken Edge Filter Or Plugged Cylinder Head Adapter Can Cause Rough Engine Operation Or Low Power

1983/10/26 Larger Oil Pump Used To Give Better Clutch Cooling And Bearing Lubrication

1983/11/30 New Air Cleaner Mounting Channel Helps Prevent Failure

1983/11/30 New Shafts Used In Fuel Injection Control Groups

1983/11/30 Crankshaft Failures

1983/11/30 New Connecting Rod And Main Bearings Used

1983/11/30 List Of Service Publications

1983/11/30 Explanation Of Engine High Idle RPM And Correct Adjustment Of Engine Setpoint

1983/11/30 Use 6V6070 Tool Group And New Adjustment Procedure For New Scroll Fuel System