Do the bolts normally go straight through the engine cradle into the engine?

On the STM cradle the square section tube is welded onto circular tube that has a polybush and crush tube in it. Then the bolt is attached through the polybush into the engine. I can't really see any advantage. The other end of the mount is on a big chunky rs2000 engine mount rubber doughnut. It's not as if the engine is going to be rotating much. Or is it?!?!? Confusing...

I'm re-designing the mount and I can't see why I can't just drill a hole through the square section cradle and put a bolt through it with washers either side (with a bit of copper slip to allow some initial rotation)..... Is it normal to have polybushes on the engine mount and big rubber engine mount doughnuts??

Or am I missing something!!

my cradle is bushed where it joins the chassis and bolts to the engine solidly through welded tubes on the cradle.
I believe that MK solidly mount to the chassis aswell as the engine without any vibration problems that i have heard of, so your rubber mounts could go without issue

Rich

Hi if you look at Roadrunners photos on here under zx9 engine you will see how i did his engine cradle solid fix like MK
Jacko

rubbers are for safe s** not for BEC engine mounts as far as i reckon

Tks

p.d. sorry for being that direct

I was planning on keeping the rubbers and getting rid of the polybushes

Oh well! Time for plan B!!