Mine were quite bad but I had no idea until I removed them. One of the reasons I used PYI mounts is that they are designed to prevent axial movement, even when worn. I would remove yours one at a time and compare their measurements to that of a new one. Height specifically. You can spot a bad one pretty quick.
I'm looking to part with a new spare stock yanmar mount if you find yourself in need. Josh Muckley On Dec 17, 2013 6:15 PM, "Eric Frank" <efran...@mac.com> wrote: > Is there a good way to test the quality of the engine mounts while Cat's > Paw is on the hard? Last summer, I noticed that when the engine was at > full throttle (about 3000 rpm), water appeared in the bilge. Watching the > dripless prop shaft seal while moving the throttle from mid-speed to full, > I noticed water was spraying out between the carbon piece at the forward > end of the bellows and the SS piece fixed to the shaft. It seemed to me > that the forward end of the bellows was moving forward (have to trust my > memory here), and so the seal leaked. Without analyzing this properly, I > thought the bellows needed to be replaced, which is true, and I ordered a > new dripless seal from PYI and am installing it. > > But after a mention on this list about worn out engine mounts, I realize > that probably the prop shaft and engine were also moving forward because of > the strong thrust of the prop. How else would the front of the bellows > move forward? > > Is there a good way of testing the integrity of the engine mounts while > the boat is on the hard? Obviously now is a good time to replace them if > they are worn out. Is there a way of trying to push the engine forward to > see if I can reproduce what I think I saw? > > Eric Frank > Cat's Paw > C&C 35 Mk II > Mattapoisett, MA > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > >
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