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TSB 09-07-96

Fuel Injection Pump oil supply Bushing oil seepage

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Date: Jun 7, 1996

Models: 1994 - 1995 (BR) Ram Truck

NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 5.9L CUMMINS TURBO DIESEL ENGINE.

Symptoms:

The oil supply bushing on the inline fuel injection pump, may exhibit oil seepage around the base.  

Diagnosis:

When diagnosing an owner complaint, the source may be misdiagnosed as being the oil pressure sensor which is mounted in the block behind the injection pump. The oil supply bushing is located on the engine side of the fuel injection pump, to which the oil supply hose from the cylinder block main oil feed is attached. The new part is a male connector that takes the place of both the bushing and the old male adapter. The repair can be made without removing the fuel injection pump from the engine by using a special bushing removal tool included with the new bushing.  

Parts:

1    4374879 Bushing, Oil Supply & Removal Tool 

Repair:

This bulletin involves replacing the oil supply bushing.

1.    Remove charge air inlet tube.

2.    Remove fuel injection pump oil supply line. 

3.    Remove male oil supply adapter fitting from fuel injection pump.

4.    Back off oil bushing removal tool lock nut.

5.    Thread tool into fuel injection pump oil supply bushing until hand tight.

6.    Tighten removal tool lock nut (left hand thread).

7.    Using a wrench on the lock nut, remove the oil supply bushing.

8.    Clean the fuel injection pump housing threads.

9.    Apply Mopar Lock N' Seal (P/N 4318031) thread locker to new bushing and fitting .

10.   Install new oil supply bushing with copper washer into fuel injection pump (use hex on new fitting to install).

11.   Torque bushing fitting to 30 Nm (22 ft. lb.).

12.   Reinstall oil supply line and air inlet tube.

13.   Run engine and check for leaks.

Notes:

POLICY: Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:
Labor Operation No:   09-55-35-92 .................0. 5 Hrs

FAILURE CODE: P8 - New Part  


Thanks to Bob Bergevin and Barry Drodge for supplying this TSB information

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This page was edited on: May 3, 2004