Parts and Service Procedures
Parts required to complete the campaign are to be obtained from General Motors Service Parts Operation (GMSPO). To ensure that these parts are obtained as soon as possible, they should be ordered from GMSPO on a C.I.O. order with no special instruction code, but on an advise code (2).DESCRIPTION PART # QUANTITY PER VEHICLE
Pinion Stop Collar 1927849 1 As Required
Retaining Ring 1927848 1 As Required
IMPORTANT:
GMSPO has limited quantities of parts which are in merchandized packages of 10 pieces each. Please do not over order so that GMSPO will have parts for all involved vehicles.
INSPECTION
Starter Identification:
1. All vehicles within the breakpoints should be inspected to determine the starter motor date codes. The date codes are imprinted on the upper half of a tag located on the motor end of the starter. The tag information is read upside down as viewed from the bottom. (See illustration.)
2.a. Most vehicles may be inspected by utilizing a mirror, flashlight and/or use of a pliable material such as modeling clay or similar material to make an impression of the date code. After making an impression, read the code in a mirror.
2.b. Grand Prix vehicles with L82 engines may require removal of the oil filter drip pan to gain access to read the date codes.
2.c. Sunbird vehicles equipped with oil coolers and 2.0L (LE4) engines will require starter motor removal to read the date codes per section 6D2 of the service manual.
3. Remove all starters with date codes of N093, N103, N113, N123, N133, N153 and N163 and perform service procedure to replace pinion stop collar. Starter removal instructions in section 6D2 of the service manuals should be followed.
IMPORTANT:
Remove negative cable from battery.
4. Reinstall starter motors per instructions in service manual, section 6D2.
5. Install campaign identification label on all vehicles inspected and/or serviced.
SERVICE PROCEDURE TO REPLACE PINION STOP COLLAR
1. With starter motor removed, remove field lead attaching screw, from solenoid terminal.
2. Loosen, but do not remove through bolts in the starter motor assembly. Do not separate the commutator end and frame.
3. Separate the frame with the armature inside from the housing.
4. Remove the thrust collar from the end of the shaft if it is not stuck to the housing.
5. Remove the pinion stop retaining ring first prying the pinion stop collar off the ring. Pry the pinion stop ring off the armature with a small screw driver. Bend ring enough to avoid scratching or damaging armature surface as ring is removed. Discard ring.
6. Remove pinion stop collar from armature shaft. Discard collar.
7. Install new pinion stop collar on armature shaft. Flat side goes towards pinion.
8. Install new retaining ring onto armature shaft and seat it in the shaft groove. Use care not to damage the armature shaft.
9. Install thrust collar onto armature shaft with small flange toward retaining ring. Use two pliers to move pinion stop collar and the thrust collar to snap pinion stop collar over retaining ring.
10. Assemble the frame, armature, and drive assembly into the housing. Ensure the shift lever is engaged with the drive assembly. Ensure the armature shaft is engaged with the housing bearing. Tighten the through bolts.
11. Install starter field lead to solenoid. Return to step 4 of Inspection.
CAMPAIGN IDENTIFICATION LABEL
Each vehicle modified in accordance with the instructions outlined in this Product Campaign Bulletin will require a "Campaign Identification label." Each label provides a space to include the campaign number, the five digit dealer code of the dealer performing the campaign service, and the date the vehicle was campaigned. This information may be inserted with a typewriter or ballpoint pen. Install the label only on a clean, dry surface of the radiator baffle where it is readily visible. (Additional campaign labels are available on stationery order as Form 7201-709.)