The fact that it has a cable vs a pushrod attached leads me to believe it's probably a throttle servo. I think smedsky's suggestion is 'right on'. You could paint a little epoxy on the wood and let it dry before applying the foam tape. That would provide a non-porous surface that would probably make it stick even better. You get vibration protection and the ability to remove it if necessary by cutting through the foam. A little adhesive remover from an auto paint supply house would get the tape off of the wood and servo.