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TSB 18-11-96

Revised injection Pump Timing Specifications

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Date: Mar. 22, 1996

Models: 1996 (BR) Ram Truck

NOTE:   THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH THE 5.9L CUMMINS DIESEL ENGINE (CPL 2022 and CPL 2023) ONLY.

Discussion:

The injection pump to engine timing on the affected vehicles (CPL 2022 and 2023) has been advanced by one degree. The following Fuel Injection Pump Timing Specifications is to be utilized when checking or performing injection pump timing procedure's. The timing specification listed is nominal and has a tolerance of +/- 1 degree.

FUEL INJECTION PUMP PLUNGER LIFT
49 STATE AUTOMATIC TRANSMISSION AND
ALL CALIFORNIA EGR EQUIPPED ENGINES  

 
CPL 2022/2174 AND 1863 (California)
Static Timing (Degrees BTDC)
Plunger Lift (mm) at TDC
13.0
4.29
13.5
4.37
14.0 (Nominal)
4.45
14.5
4.53
15.0
4.61

 

FUEL INJECTION PUMP PLUNGER LIFT
49 STATE MANUAL TRANSMISSION

CPL 2023/2175
Static Timing (Degrees BTDC)
Plunger Lift (mm) at TDC
12.5
4.89
13.0
4.98
13.5 (Nominal)
5.07
14.0
5.16
14.5
5.25

NOTE: THE FOLLOWING STEPS MUST IMPLEMENTED TO BE IN COMPLIANCE WITH EMISSION LAWS.

Once this procedure has been performed (by a Chrysler or Bosch Dealer), the engine data plate MUST be updated to identify the revised NOMINAL timing specification and correct CPL number. The old timing specification and CPL number should be crossed out and the new specification and CPL number are to be stamped on the engine data plate ("Timing T.D.C.") using a number stamp or can be etched by an etching tool.

CPL 2022 engines should be stamped CPL 2174 and 14.0 deg BTDC
CPL 2023 engines should be stamped CPL 2175 and 13.5 deg BTDC

In addition, type the necessary information on the Authorized Modification Label and attach the label near the VECI Label.

New production engines will carry revised CPL numbers (2174, 2175, or 1863) and will not be required to have the revised specification stamped onto the engine data plate when a injection pump timing procedure is performed.

Notes:

TIME ALLOWANCE:
Labor Operation No:   14-50-02-94 . . . . . . . . . . . 0.2 Hrs.
Install Revised Injection Pump Timing Specifications Label.

FAILURE CODE: XX - Service Adjustment


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

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This page was edited on: May 3, 2004