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Plymouth Workshop Service and Repair Manuals

Engine - Poor Performance/Retarded Timing|Page 1157 > < Ignition Cable|Service and Repair
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Distributor: All Technical Service Bulletins
Engine - Poor Performance/Retarded Timing

Models

1983 Omni, Charger, Horizon & Turismo Equipped With 1.6L Engine

Subject

Distributor/Oil Pump Drive Shaft Bushing Wear

Index

ENGINE

Date November 28, 1983

No..

09-10-83

P-4654-C

SYMPTOM/CONDITION

Ignition timing retards with mileage accumulation, resulting in poor engine performance.

DIAGNOSIS

Check ignition timing for being retarded. If the vehicle history file indicates repeated timing adjustments have been made, then the cause could be due to
cross shaft drive gear bushing wear. Use the following procedure to correct the condition.

PARTS REQUIRED

1 - Repair Package

PN 4293858

REPAIR PROCEDURE

1.

Set crankshaft on TDC firing on #1 cylinder.

2.

Make crayon mark on distributor housing and cast adapter base.

3.

Remove distributor clamp bolt and clamp.

4.

Remove distributor.

5.

Remove distributor adapter screws (two).

6.

Remove distributor adapter base - discard gasket.

7.

Mark position of drive slot and remove distributor drive adapter (note that slot is not on center).

8.

Carefully remove circlip and discard. Use magnet or a rag around the gear to catch the circlip.

9.

Remove drive gear.

10.

Raise vehicle, remove oil pump.

NOTE:

THE OIL PUMP DRIVESHAFT WILL NOT COME OUT ALL THE WAY BECAUSE OF DRIVESHAFT, BUT WILL SLIDE OUT
FAR ENOUGH.

11.

Lower vehicle, insert Tool C-3052 into bushing, and thread down until a tight fit is obtained.

12.

Position SP1193 over C-3052 followed by 3" sleeve and nut.

A.

Carefully tighten puller nut until bushing is removed.

Engine - Poor Performance/Retarded Timing|Page 1157 > < Ignition Cable|Service and Repair