4JBC2 2240-2500 8943655480 STARTER DRIVE/BENDIX MOTOR GEAR AX-16118 For ISUZU

4JBC2 2240-2500 8943655480 STARTER DRIVE/BENDIX MOTOR GEAR AX-16118 For ISUZU

The Starter Drive or Bendix Motor Gear is a critical component of the starter motor system in a truck. It engages the flywheel when the engine is cranked, allowing the engine to start. The Bendix gear is responsible for connecting the starter motor to the engine’s flywheel, ensuring that the motor turns the engine over at the correct speed and with sufficient power.

• Engages the Flywheel: The Bendix gear extends and engages with the engine’s flywheel when the starter motor is activated, helping to turn the engine over.

• Disengages After Starting: Once the engine starts, the Bendix gear automatically retracts, disconnecting from the flywheel to prevent damage.

• Provides Smooth Cranking: It ensures smooth and efficient starting of the engine, allowing for quick ignition and proper engine turnover.

If you experience any of the following symptoms, it may indicate that the Starter Drive / Bendix Motor Gear is malfunctioning or worn out:

1. No Cranking Sound or Slow Cranking

   • When you turn the key to start the truck, if there is no cranking sound, or the cranking is slow, it could indicate a problem with the Bendix gear not engaging properly with the flywheel.

2. Grinding Noise During Starting

   • If you hear a grinding or ratcheting noise when attempting to start the truck, this could mean that the Bendix gear is not disengaging properly from the flywheel after the engine has started. This is a clear sign of wear or damage.

3. Intermittent Starting Issues

   • If the truck starts intermittently or only starts after several attempts, the Bendix gear may not be fully engaging or disengaging as it should, leading to inconsistent performance.

4. Starter Motor Spins Without Engaging the Engine

   • When the starter motor runs but doesn’t engage the flywheel, the Bendix gear may be faulty, preventing the engine from turning over.

5. Difficulty Starting in Cold Weather

   • A worn or damaged Bendix gear may have more trouble engaging in colder temperatures, making starting more difficult in cold weather conditions.

If the Starter Drive / Bendix Motor Gear is faulty, follow these steps for replacement:

1. Preparation

   • Park the vehicle on a level surface and ensure the engine is off. Disconnect the truck battery to avoid any electrical issues while working on the starter motor.

   • Gather the necessary tools: wrenches, socket set, screwdrivers, replacement Bendix motor gear, and gloves.

2. Remove the Starter Motor

   • Locate the starter motor (usually near the engine block) and disconnect any wires or cables attached to it.

   • Use appropriate tools to remove the starter motor from its mounting position.

3. Replace the Bendix Gear

   • With the starter motor removed, locate the Bendix gear attached to the starter shaft.

   • Carefully remove the damaged or worn Bendix gear and replace it with the new one, ensuring it is properly seated on the starter motor shaft.

4. Reinstall the Starter Motor

   • After replacing the Bendix gear, reinstall the starter motor onto the engine block. Tighten the mounting bolts securely.

   • Reconnect the wiring and electrical connections to the starter motor.

5. Test the New Bendix Gear

   • Reconnect the truck battery and start the engine to test the new Bendix gear. Check for smooth engagement and ensure no grinding noises occur during startup.

6. Final Inspection

   • Inspect the starter motor for any issues and ensure that the Bendix gear is working properly. Monitor the performance over the next few starts to verify consistent operation.

Replacing a faulty Starter Drive / Bendix Motor Gear is crucial for maintaining reliable engine starts and preventing damage to the starter motor or flywheel. Regular inspections and timely replacements will help ensure smooth and efficient vehicle operation.

Genuine parts and replacement parts for all Isuzu trucks and engine models include as Follow.