[Alberg30] Yanmar 2GM20 Flexible Engine Mounts

[RABBIT649 at aol.com]

You know, Lee, I can't give you mfg names anymore, but the best soution I 
ever heard to the engine mounting problem is the type of mount that allows 
the engine to 'float'. The complication is that these mounts do not permit 
the transmission of forward thrust throught he engine itself. Instead, the 
prop shaft pushes against a thrust bearing mounted in a short piece of heavy 
angle iron glassed across the inside of the tail of the boat and the engine 
is then completey isolated, in essence providing only torque, which these 
mounts are designed to do. The degree of vibration isolation these mounts 
provide is an order of magnitude greater than that of mounts which also have 
to transmit prop thrust to the hull.
I wish I remembered the manufacturer that provided this soution. Vetus maybe? 
Does someone know?
Paul
Ashwagh #23



In a message dated 4/20/2003 8:27:12 PM Eastern Daylight Time, 
FINNUS505 at aol.com writes:

> Subj: Re: [Alberg30] Yanmar 2GM20 Flexible Engine Mounts 
>  Date: 4/20/2003 8:27:12 PM Eastern Daylight Time
>  From: <A HREF="mailto:FINNUS505 at aol.com">FINNUS505 at aol.com</A>
>  Reply-to: <A HREF="mailto:public-list at alberg30.org">public-list at alberg30.org</A>
>  To: <A HREF="mailto:public-list at alberg30.org">public-list at alberg30.org</A>
>  Sent from the Internet 
> 
> 
> 
> Talking about engine mounts................
> 
> That is my next project, after I get the stern tube, cutlass bearing, 
> cutlass 
> bearing housing, prop shaft, and prop back in the boat.
> 
> This boat, with her rebuilt Volvo MD 11 of unkown vintage, came with only 
> three motor mounts. I did not know the port aft mount was not there until I 
> 
> cut the cockpit sole for the access panel, and could see the port aft 
> corner 
> of the engine!!!!!!
> 
> I have not tried to look at the other mounts yet to see if there is a 
> serial 
> number, or other ID to help me get the right replacement mount, but does 
> anyone else have experience with this, and is there a direction I should be 
> 
> going in?  
> 
> Thx,
> Lee
> Stargazer #255

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