Safety Precautions:
- Ensure the vehicle is properly secured and chocked to prevent movement.
- Follow all safety guidelines and precautions for lifting and working under a vehicle.
Assessment:
1. Inspect the Crack: Examine the location and depth of the crack. Small hairline cracks may be repairable, while deeper or multiple cracks may indicate more severe damage.
2. Material Assessment: Determine the material of the motor mount. Some motor mounts are made of rubber, while others are made of polyurethane. The material will impact the repair method.
Repair Steps:
1. Lift the Vehicle: Use a jack and jack stands to safely raise the vehicle off the ground, providing access to the motor mount.
2. Locate and Remove the Motor Mount: Identify the dog bone motor mount and remove any bolts, nuts, or components that hold it in place.
3. Clean and Prepare the Area: Clean the surface of the motor mount around the crack to ensure proper adhesion. Remove any dirt, grease, or debris.
4. Apply Rubber/Polyurethane Adhesive: If the motor mount is rubber-based, use a suitable rubber adhesive. If it's polyurethane-based, use an adhesive designed for polyurethane. Apply the adhesive according to the manufacturer's instructions.
5. Press and Secure: Press the cracked surfaces together firmly and hold them in place using a clamp, C-clamp, or other appropriate tool. This prevents movement while the adhesive sets.
6. Allow to Set: Follow the adhesive's recommended setting time before releasing the pressure and allowing the mount to fully cure.
7. Inspect and Test: After the recommended curing time, inspect the repair to ensure it's secure. Perform a visual check and press on the repaired area to confirm its strength.
8. Reinstall the Motor Mount: Once you're satisfied with the repair, reinstall the motor mount using the bolts and components you removed earlier.
It's important to note that not all cracks can be repaired effectively, and it may be necessary to replace the dog bone motor mount if the damage is extensive or the repair fails. If you're unsure about undertaking this repair yourself, consider seeking the assistance of a professional mechanic.
