I have the JetCat engine mount for a P 80 to fit the Kangaroo. It is standard one that is screwed to the fuselage and the hoop clamps the engine.

When I tighten the bolts on the hoop it pushes the engine down hard onto the head of the screws that are holding the clamp to the fus. This is resulting in dents in the engine case.

How can I stop this? Is there something I can put in between the engine and the screws to prevent further damage? Is there a better engine mount available?

Thanks