Engine speed is the primary input that determines the stiffness of the mount.
Over the years, motor mounts have evolved from when they were just an item to mount the engine to the frame or unibody.
These myths can hurt a technician’s ability to effectively diagnose and solve common brake problems.
Andrew Markel discusses the relationship between motor mounts and U-joints, and how position changes in the engine can affect U-joints and CV axles. Sponsored by Auto Value and Bumper to Bumper.
Engines have noticeably changed in the past decade. Fewer cylinders, more power at lower RPM and more detectable vibration at idle are just a few of the differences in today’s engines. With these changes, it should be no surprise that engine and transmission mounts have taken on new importance. New technologies are being used that access information from the engine to anticipate vibration before it reaches the driver.
This article will introduce you to some of the basic terminology and testing techniques used in modern NVH diagnostics.