Engine mounts can be checked by
grabbing the engine and shaking it vigorously in the engine bay. If you
have clanking to any kind of noise, the engine mounts are probably broken.
Broken engine mounts contribute to excessive engine vibration and increased
vibration in general when the engine is running. Fortunately Mazda
Competition offers stiffer engine mounts that are made from 40% stiffer
rubber. Mazda Competition part number is FBY1-39-040; two total are
need - one for each side.
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