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Old Feb 03, 2013, 09:01 AM
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Navarre, FL
Joined Mar 2002
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Originally Posted by lineofsight View Post
Why does Rusty's Anti-Vibration Motor Mounts come with those nylon spacers?

Is it just to clear the bolt attaching the motor mount to the arm, or does it actually serve a purpose in vibration dampening? Can the cross-piece of the motor just be attached directly to the top half of the grommet?
Correct that the spacers are required to clear the block screws. The more distance you can put between your prop and the arm tubes the better as far as prop induced vibration goes, but 1/4" won't even be noticeable.

The round washers will spread the load over the entire grommet better than the arms of the motor mount will, but there's no harm in trying it without the washer.

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