ORIGINAL: TomTreese

I have a question as to what engine mounts should be used with large, 1.20 to 1.80, 4-stroke engines. Specificaclly Saito 120, 150, 180.


I Just sent a Saito 180 back because the exhaust pipe and manifold keeps coming (vibrating) loose and it finally stripped the threads in the cylinder head. I read on the Saito site,: http://saito-engines.info/engine_mount.html, That aluminum mounts may be better for the 150's and 180's? but those mounts are not the Dubro Dampening type?

I asked the Saito technician today and really didn't get a definite answer.

I just found an article in December 06 Model Airplane News by Chris Chianelli that states: "Fiber filled mounts serve to exacerbate the vibration problems intrinsic to 4-strokes simply because they flex too much and that's what causing the muffler to come loose".

If that is so, why would you want rubber grommets in the mount like the Dubro #688??? Would they add or subtract from the vibration??

This is Important not only for the Venus II I ordered and installing the Saito 150 but also for the Dave Patrick Ultimate taht I'll be reinstalling the 180 on?

Where do you get a Hyde Mount and will the fit a Saito or just a YS???

Help!!!