Josh,
The driver saver is several inches thick. Thats why I had to shorten my prop shaft. It uses eight bolts that all go into the central urethane piece. Four go to the engine output and four go to the shaft collar. It was easy to install, just tedious. The alignment wasnt too bad either. Its been a few years, so I should check it again. The new engine mounts may have settled over the years, although I dont have a lot of vibration to report. I would like to install more insulation in the engine compartment. The stuff under the cockpit sole has all deteriorated Jake From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley Sent: Thursday, December 12, 2013 9:58 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List C&C 37+ engine mounts Jake, The drive saver is just a thin (1/2") intermediate piece of plastic right? Why did you have to shorten the shaft? Nice idea using a grinder. I would have been scared out of my mind! Josh On Dec 12, 2013 7:45 PM, "Jake Brodersen" <captain_j...@cox.net> wrote: Josh, Good job on the replacements. I know it couldnt have been easy with the access you have. I used Yanmar mounts when I replaced mine. It was very simple. I have the PYI drive saver. I had to cut the prop shaft to install it. While I did the cutting on my own, I would recommend a machine shop do it because it involve recutting a keyway for the shaft collar. I used a 4 ¼ grinder to cut the keyway. Quick and effective, but far from ideal. Time constraints make you do strange things sometimes No issues though. Jake Jake Brodersen Midnight Mistress C&C 35 Mk-III Hampton Va cid:D1BF9853-22F7-47FB-86F2-4115CE0BAF2F From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley Sent: Thursday, December 12, 2013 7:29 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List C&C 37+ engine mounts 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 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 _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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