Josh you have great photos of the job, as usual. Here are some pics of my existing mounts: https://drive.google.com/folderview?id=0BxfHpwssU_6NfnpXZjYta205U0pmeW1Ba0Fla2U3YmNBX1ByU1c4TURtb0ZaVDk2VVFQQ28&usp=sharing
The Vetus mounts don't look very good. I have heard people like the captive attributes of the PYIs, and the oil/fuel shielding. The oil/fuel shielding doesn't seem like a big deal to me because the Yanmar OEMs are shielded from the top as well, and it doesn't appear the engine mounts have ever had oil or fuel spraying in from the side on them anyway. The captive aspect is nice, but considering the Yanmar ones I have now are probably original, they lasted 31 years and are still in good enough shape that I wouldn't worry about the engine flying off. The main selling point of the Yanmar one is I read a couple forum posts where people said the Yanmar ones had noticeably better vibration dampening - meaning less vibrating of lazarette lids and the cockpit floor. I don't need to do the realignment because the mechanic I'm paying to do the transmission reinstall will do that. That's part of the reason it really makes sense to do now. On Wed, Aug 12, 2015 at 5:17 AM, <cnc-list-requ...@cnc-list.com> wrote: > ---------- Forwarded message ---------- > From: Josh Muckley <muckl...@gmail.com> > To: "C&C List" <cnc-list@cnc-list.com> > Cc: > Date: Wed, 12 Aug 2015 05:48:32 -0500 > Subject: Re: Stus-List Yanmar engine mounts replacement > > I replaced all 4 of mine 2 winters ago with PYI. They are captured so > even if/when the rubber breaks down or delaminates the mount will still > hold the engine. Yanmar even recognizes the possibility of a torn engine > mount and recommends installing a heavy gauge "twist tie" to prevent the > engine from coming loose. On one boat we looked at, the dripless shaft > seal bellows were weak but worked while idle or forward at low RPM. At > high RPM the engine was able to thrust the engine forward enough on the > weakened stock yanmar mounts to allow the shaft seal to spray. The PYI > capturing prevents excess engine movement if the rubber breaks down and are > stainless frames to prevent rust. The top creates a shroud so that any > fuel or oil is directed away from the rubber to help prevent the rubber > from breaking down too. I think they were a little cheaper too. > > If you would like I have a brand new, never installed, yanmar mount I > would be willing to sell. > > The install on mine was only made possible by removing the mounting > brackets from the engine. I did them one at a time so the engine was > always supported on three corners. > > I would use a sharpie to trace the original mounts just to give you a > guide on the new ones. > > The suggestion made to me was to use a deflated basketball to jack the > engine. I had already finished the job before acquiring a basketball so I > never tried it out but it would have made the job easier. > > My boat came with Vetus engine mounts. I think they were built with a > hydraulic dampening fluid inside. When i got the boat they were oozing. > You can see pictures of the new ones installed and the old ones removed at > the following link. > > https://drive.google.com/folder/d/0B8pEh5lnvP1ydTdWdDVtZlNYamM/edit > > It was my first alignment and took some though with regard to how to get > the engine to move properly. The basketball would have probably been > helpful. Finding the correct wrench combination to reach all the places > was a challenge. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > Yanmar 3HM35F >
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