1982/10/20 Caterpillar


New Fasteners Used For Fuel Injection Lines

Usage:


All 3306 Engines With DI Scroll Fuel Systems

Description of Change: New screws, bolts, clamps and bracket assemblies are used in the fuel injection lines groups for the above engines.

The new screws are made of softer material. The new screws will twist off (break) before they can be tightened enough to cause damage to the fuel lines. The screws can be tightened to 2.3 ± 0.2 N·m (20 ± 2 lb in).

The new clamps are made of a thinner metal and are made to hold only two lines together at a time. This makes a more flexible assembly of the fuel lines and clamps. This will decrease the stresses on the fuel lines when they are installed.

Adaptable As: The new parts, when used together, are direct replacements for the former parts as shown in the chart. The new parts are in effect with Serial Number 64Z935.

Caterpillar Information System:

1982/10/20 FT1698 Driver Can Be Used For Reconditioning Of Governor Housing
1982/10/20 New Head Gasket Improves Seal Between Block And Liner Flange
1982/10/20 New Main And Connecting Rod Bearings Have A Thicker Layer Of Lead-Tin Overlay (Surface Material)
1982/10/20 Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter
1982/10/20 Planned Engine Repairs
1982/10/20 Improved Valve Cover Seal
1982/10/20 Reconditioning Of Oil Pump Covers
1982/10/20 New Connecting Rod And Main Bearings Have Thicker Layer Of Surface Material
1982/10/20 List Of Service Publications
1982/10/20 Improvement To 1N4679 Control Rod Assembly Increases Range Of Adjustment For Rack
1982/10/20 Extended Storage Procedures
1982/10/20 New Water Pump Uses New Seal And Impeller
1982/10/20 Improvement To Engine Overspeed Alarm System
1982/10/20 Do Not Use A Wire Brush On Fuel Nozzles
1982/11/10 Mechanical Shutoff Groups Changed To Prevent Vibration Of Oil Line Tubes
1982/11/10 Improvements To Generator-Mounted Control Panels
1982/11/10 6V6142 And 6V6143 Installers Can Be Used To Install Crankshaft Seals And Wear Sleeves
1982/11/10 6V6175 And 6V6176 Torque Adapters Make Installation Of Fuel Pump Drive Gear Easier
1982/11/10 New Crankshaft Seal Groups Used
1982/11/10 High Compression Pistons Can Be Used In Engines Used At High Altitudes
1982/11/10 Resurfaced Cylinder Blocks And Heads
1982/11/10 New Crankshaft Assemblies
1982/11/10 New Guard Assemblies Used
1982/11/10 Reference Chart for Engine Improvements
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