Diesel Data: Automotive Repair

Service Adjustment Procedures For Pinion Gap Adjustment

Fig. 4 Pinion Gap Adjustment (Part 1 Of 3):




1. Disconnect the field coil wire from the M-terminal of the solenoid.
2. Connect a 12V battery the S-terminal and the M-terminal.
3. The pinion will move out.

CAUTION: This test must be performed quickly (in less than 10 seconds) to prevent the coil from burning.

Fig. 4 Pinion Gap Adjustment (Part 2 Of 3):




4. Check the pinion to stopper clearance (pinion gap) with a feeler gauge.

Pinion gap : 0.5-2.0 mm (0.02-0.079 in.)




5. If the pinion gap is out of specification, adjust by adding or removing gaskets between the solenoid and the front bracket.