Engine mounts |Forum|Twister Class Association

I replaced Cyclone's Yanmar 2GM mounts with some from  these folks:

https://www.avmountsonline.co.uk/.

I think the knackered mounts were R&D mounts. I measured the mount spacings, stud dia. & length and researched the Shore (hardness) ratings. I contacted AV mounts to confirm they had a suitable product. I can't recall shore ratings, but they were softer for the rear ones. I made studs up from set screws (bolts with thread all the way along the shaft). I did make some tufnol spacer plates to raise the mounts nearer the mounting brackets, to reduce leverage as the height was less than the old mounts, but didn't fit them in the end. I may do that this winter. So far they have performed fine (about 25hrs motoring) Quieter, smoother but they do allow the motor to move around more than the old ones, but that doesn't seem to be an issue.