Posts Tagged: Starter Shims

Starter Shims: How To Shim A Starter Motor

Starter Shims: Why It’s Critical for Proper Engagement If you’re installing a new or rebuilt starter, there’s one detail that too many technicians and DIYers overlook—starter shimming. It’s not optional in many cases. In fact, failing to install starter shims properly can lead to annoying noises, damaged flywheels, and repeated starter failure. In this guide, I’ll walk you through why it’s necessary, what symptoms indicate it’s needed, and exactly how to measure for and install them correctly. Why Do Some Starters Need Shimming? Many GM engines, especially small-block and big-block … Read More