1982/01/13 Caterpillar


New Springs For Timing Advance Used In Governor And Fuel Pump Drive Group

Usage:


All Direct Injection 3406 Truck Engines

Description of Change: New inner and outer springs are used in the governor and fuel pump drive groups for all direct injection 3406 Truck Engines. The new springs are part of the timing advance components.

The new outer springs have approximately 1.2 mm (.05) smaller outside diameter. This gives added clearance between the springs and the weights. The new inner springs also have smaller outside diameters, and they have more coils (turns).

The load characteristics of the new springs are the same as the load characteristics of the former springs.

Formerly, springs with larger outside diameters were used. Contact between the outer springs and the weights caused the outer springs to wear and shortened their service life.

Adaptable To: The new parts, used together, are direct replacements for the former parts as shown in the chart.

Caterpillar Information System:

1982/01/13 New 6V4190 Auto Programmer Group And 6V4865 Auto Programmer Connector Used With 6V2100 Multitach
1981/11/13 Part Number For Fuel Injection Pump Group In New Location
1981/11/13 Service Manual Information About Inside Diameters Of Valve Guides
1981/11/13 New Cylinder Block Permits Use Of A Small-frame Turbocharger
1981/11/13 Reference Chart For Major Production Changes On 3208 Truck Engines
1981/11/13 Bolt Torque Specifications Changed For Crankshaft Pulley And Power Take-off Adapter
1981/11/13 Oil Pan Drain Plug Has More Threads
1981/11/13 New Clearance Specifications For Oil Pump Rotor Tip
1981/09/23 Lubricant Gives Protection To Camshaft And Roller During Initial Start-up
1981/09/23 Low Idle Instability: New Low Idle Setting
1981/09/23 New Exhaust Gas Recirculation Solenoid Used
1981/09/23 One-piece Panel Used For Oil Pan Sound Suppression
1982/01/13 "SIRS User Instructions" Available
1982/01/13 New Regulator Assemblies Used
1982/01/13 New Torque Specification For Bushing
1982/01/13 List Of Service Publications
1982/01/13 New Cylinder Liners And O-ring Seals Give Longer Seal Life
1982/01/13 Make Sure Coolant Conditioner Elements Are Changed At Correct Intervals
1982/01/13 Use Of Metric Fasteners
1982/01/13 Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear
1982/02/17 Gasket Kits
1982/02/17 Bent Lever For Fuel Shut-off Solenoid Can Cause Low Engine Performance
1982/02/17 New Fuel Nozzle Adapter Assembly Used
1982/02/17 List Of Service Publications
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.