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I have 500 hours on my LIV. I started with the black Barry engine mounts. Changed them out at about 200 hours to the green ones. Now the green ones sag also--not quite as much, but for $320, they are crap.
Interestingly, we built in a half inch of compensation before we completed the cowl.
I would suggest the following attempt at a fix to everyone starting out: Build a cupped heat shield around the rubber mounts to eliminate radiant heat emanating from the turbos.
I am tempted to build my own mounts from large Viton green rubber stoppers from a lab supply house. If I had a smaller engine with less torque, I would really consider doing this myself. When I used them in the lab many years ago, they were indestructable, and they cost only a buck or so each.
Well, I am done buying expensive crapola from Barry. I think I will try rotating the present ones 180 degrees on their axis to change the sag to a lift...
If this works, I will make a heat shield with flats to grasp to rotate the mounts 180 every hundred hours or so.
David Jones
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