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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 Transom Motor Mount		  New Topic  Topic Locked
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existentialsailor
Master Marine Consultant

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USA
1180 Posts
Initially Posted - 12/28/2004 :  08:10:03  Show Profile
Shouldn't there be compression fittings in the through holes for the motor mount? I would think that even with an adequate backing plate, the hull would be unduly stressed.


Looking at the motor mount hardware kit from Catalina Direct, I don't see any fittings. So either there aren't supposed to be any or they assume you already have them installed.

Thanks for any insights.
Rick
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Leon Sisson
Master Marine Consultant

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USA
1893 Posts
Response Posted - 12/28/2004 :  08:55:41  Show Profile  Visit Leon Sisson's Homepage
Try searching the archives for "transom motor mount reinforcements".
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ClamBeach
Master Marine Consultant

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3072 Posts
Response Posted - 12/28/2004 :  09:48:46  Show Profile
Don't know about the Capri, but most C25's do just fine without them.
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Ben - FL
Admiral

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880 Posts
Response Posted - 12/28/2004 :  10:58:40  Show Profile  Visit Ben - FL's Homepage
If it was my motor mount I would through bolt it. On the 250 we just use the motor clamps - no bracket necessary. But I intend to through bolt my motor anyway next time I haul out.
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Dave Bristle
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Djibouti
10005 Posts
Response Posted - 12/28/2004 :  13:36:26  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Ben - FL</i>
<br />If it was my motor mount I would through bolt it.
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
"Exi" is talking about thru-bolting the bracket, but questioning (I presume) whether tightening the bolts will deform the hull and/or liner. I'd say no--the outer backing plate spreads the load downward and outward on the transom, and the inner backer spreads it upward and outward. There's no need to crank down the bolts between them (the bracket bolts)--just get everything finger tight, let the caulk under the outer plate set up, and then snug the bolts a little to compress the caulk (mostly to seal the bolt holes). Put the engine on, lower the bracket (for maximum leverage against the transom), and then snug the bolts again as needed. It'll be stronger than it needs to be.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.