Pontiac 10465029 Starter Motor,Remanufactured, 5Mt

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For an overhaul, start by removing the starter from the vehicle and disconnecting the field coil straps from the solenoid. Remove the through-bolts to separate the commutator end frame, field frame assembly, drive housing, and armature assembly. On diesel starters, remove the insulator from the end frame and the shift lever pivot bolt. On 25 MT diesel starters, remove the center bearing screws and the drive gear housing from the armature shaft. Slide off the 2-piece thrust collar from the armature shaft and use a piece of pipe or socket to drive the retainer toward the snapring. Remove the snapring with pliers and slide off the retainer and starter drive. To reinstall, lubricate the armature shaft and install the starter drive and retainer. Place the snapring on the shaft and tap it into place. Slide the retainer and thrust collar onto the shaft and squeeze them together with pliers. Lubricate the drive housing bushing and engage the shift lever yoke with the clutch. Install the drive assembly into the drive gear housing and reassemble the remaining components.

Run the engine until it reaches normal operating temperature, then shut it off and disconnect the coil to distributor LT wire or 'BAT' connection on HEl distributors to prevent firing during cranking. Connect a voltmeter positive lead to the starter motor terminal of the solenoid and the negative lead to ground. Actuate the ignition switch and take voltmeter readings as soon as a steady figure is indicated, avoiding more than 30 seconds of starter motor operation at a time.

Loosen the starter motor front bracket nut and remove the two mount bolts, then take out the front bracket bolt and rotate the bracket to withdraw the starter motor by lowering its front end.

Begin by disconnecting the starter motor field coil connectors from the solenoid terminals, then unscrew and remove the through bolts.

Check that the speed selector lever is in 'N' or 'P' for automatic transmissions, ensure the front seat belts are connected, and confirm that the clutch pedal is depressed if applicable.

Stand the armature vertically on a piece of wood and position the snap-ring on the end of the shaft. Drive the snap-ring onto the shaft using a hammer and hardwood, then slide it down until it drops into its groove.

Disconnect the leads at the starter solenoid, marking each with a coded piece of tape for easy identification upon reassembly.

Removal of the pole shoe screws is best left to a service station with the necessary pressure driver.

Check that the speed selector lever is in 'N' or 'P' for automatic transmissions, ensure the front seat belts are connected, and confirm that the clutch pedal is depressed if applicable. Additionally, verify that the battery is well charged and that all cables at the battery and starter solenoid terminals are secure.

Push the pinion away from the stop/retainer to eliminate any slack and check the clearance between the face of the pinion and the face of the stop/retainer using a feeler gauge. Ensure the clearance is between 0.010 and 0.140 inch for correct engagement with the flywheel or driveplate ring-gear.

Disconnect the leads at the starter solenoid, marking each with a coded piece of tape for easy identification upon reassembly.

Lubricate the drive housing bushing with silicone oil, ensuring the thrust collar is positioned against the snap-ring. Then, slide the armature and clutch assembly into the drive housing while engaging the shift lever with the clutch.

Clean all components and replace any obviously worn parts.