Some mounting bolts require specific steps when tightening. Failure to follow these steps can cause the bolts to come loose. As a result, wheel damage and potential safety problems can occur if the caliper locks the wheel up.
The best possible practice is to follow the torque specifications whenever tightening mounting bolts. In the real world, this is not possible. Here are some guidelines when working with caliper mounting bolts:
Caliper Mounting Bolt Tightening Steps
- Check the mounting bolt threads for signs of Loctite. (See Figure 39.1) If threads show signs of Loctite, the threads should be cleaned, and a new Loctite should be applied. Torque the bolts to the manufacturer’s specifications.
NOTE: Some manufacturers state bolt replacement is necessary.
- The larger the mounting bolt, the higher the required torque. Some of these bolts, such as those pictured in Figure 39.2, need tightening torques over 100 ft. lbs. On larger mounting bolts, you must tighten the bolts correctly.
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