Thanks for all the thoughts and suggestions.  I could have used the
basketball trick and will keep that in my bag of tricks.  Aside from
manipulating the mounts into position (straps, jacks and lots of grunting)
everything else went unremarkable.  I left the aluminum rails in place but
removed the polyethylene blocks (spacers) from the front.  With the jack
nuts all the way down the elignment came in almost perfect.  I have a PYI
shaft seal so there seemed to be quite a bit of "wiggle room".  I did
everything I could to get the shaft centered but it didn't seem to make
much difference.  I do plan to install a PYI shaft coupling that allows up
to 1mm of misalignment, though it don't think it is anywhere close to being
outside of the prescribed 0.3mm.

I posted some pictures of the completed job, the original mounts, and some
stock photos.  The original mounts are made by Vetus and are marketed to be
very good at dampening noise.  Though they don't seem to be very good at
resisting break down. :-/  And they are quite expensive.

https://docs.google.com/folder/d/0B8pEh5lnvP1ydTdWdDVtZlNYamM/edit

Lingering questions still exsist regarding torque specs and the design of
the boat's foundation.

Thanks again,

Josh Muckley
S/V Sea Hawk

I replaced my original Yanmar mounts a couple years ago (probably four or
five).  I also use the Drive Saver from PYI.  Self-aligned and no issues to
date.



Jake



*Jake Brodersen*

*“Midnight Mistress”*

*C&C 35 Mk-III*

*Hampton Va*



[image: cid:D1BF9853-22F7-47FB-86F2-4115CE0BAF2F]







*From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Rich
Knowles
*Sent:* Wednesday, December 11, 2013 5:55 PM
*To:* cnc-list@cnc-list.com
*Subject:* Re: Stus-List C&C 37+ engine mounts



Hmmm. Interesting but I have to tell you I have had regular flexible mounts
and a Drive Saver flexible coupling on my boat for 15 years with no
problems.  Others may wish to comment.

Rich


On Dec 11, 2013, at 18:47, Don Newman <donrnew...@gmail.com> wrote:

Good post Rick, but one quibble.

If an engine has flexible mounts then it must have a solid not flexible
coupling and vice versa.



I made that mistake when I repose red my last boat and the coupling
destroyed itself with extreme prejudice in a couple of hours of running.
 Everything was aligned but the two components worked against each other.



I learned later that this is an inflexible rule ;-)  sorry I can't provide
a reference but my painful experience bears it out. The original had a
solid mount and flexible coupling and the new engine had flexible mounts so
I used the very substantial coupling.




Don Newman

C&C 44






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