[Alberg30] Yanmar 2GM30 Installation

[Voyager Toronto]

Hi Stephen,
By any chance do you have a picture of your 2GM30 installation? Sounds like 
you're saying the rear mounts, suspended by brackets from the engine bed, 
are directly under the engine in their designed positions. My measurements 
are telling me this arrangment (the reverse of my originally envisaged 
solution which has the mounts sitting on a wider-than-engine bed, with the 
engine suspended by brackets from them) is impossible. My measurements are 
telling me there's no arrangement by which the rear mounts can go under the 
engine, since there's no space for a bed under the rear of the engine --  in 
fact the mounts, just sitting directly on the hull, would be too high to 
allowing the flanges to couple. I can't be visualizing your arrangment 
correctly, since you obviously have a functional engine installed, so a 
picture if you have one would be very useful. To all other 2GM owners on 
this list I would appreciate your contributions if you haven't already 
responded. Regards and thanks to all.
Calvin Voyager #30


>From: "sousa, stephen (ENG)" <sousa_stephen at emc.com>
>Reply-To: Alberg 30 public list <public-list at alberg30.org>
>To: "'Alberg 30 public list'" <public-list at alberg30.org>
>Subject: RE: [Alberg30] Yanmar 2GM30 Installation
>Date: Tue, 18 Mar 2003 15:49:46 -0500
>
>Calvin,
>
>I have a 2GM20F installed in #114 and I have seen the 3GM20F installed in
>the earlier Alberg. I have steel Z Brackets mounted on the engine bed which
>hold the motor mounts at the correct angle for installation. The
>installation was done by the previous owner, so I am not sure if the Z
>Brackets were installed by Whitby for the A-4. Bottom line everything fits
>in under the cockpit and the shaft lines up perfectly.
>
>Stephen.
>
>-----Original Message-----
>From: Voyager Toronto [mailto:voyagertoronto at hotmail.com]
>Sent: Tuesday, March 18, 2003 1:28 PM
>To: public-list at alberg30.org
>Subject: [Alberg30] Yanmar 2GM30 Installation
>
>
>I'm installing a new Yanmar 2GM30F. I knew from messages on this list that
>others have installed this engine, so did not anticipate any problems with
>fit, especially as my (old) hull#30 has no liner -- just went ahead and
>bought the engine. Imagine my surprise, then, trying to fit the template I
>made of the engine in order to determine the position of the engine bed. My
>template is telling me the hull profile in this area is too shallow: with
>the aftermost flexible engine mounts sitting on the bare hull in the
>fore-and-aft and athwartships position they would need to be, and my
>template on top of them, the engine coupling is vertically higher than the
>shaft coupling. I've checked and rechecked the measurements on my template
>against the engine diagram/specs, hoping I've made a mistake. but no luck.
>An engineering friend of mine who looked at it thinks (assuming my template
>is accurate) the only workable solution is to install the aftermost engine
>mounts outside of (inside of under) the engine and suspend the after-end of
>the engine from brackets attached to these mounts. Can those who've
>installed this engine say if you've had a similar experience? Are all four
>of your mounts sitting UNDER the engine where they should be?  I hope
>someone can point out to me where I  have made a huge mistake, because I
>didn't anticipate a problem of this proportion. From visual inspection, it
>would not appear the problem can be solved by using a longer shaft, brought
>forward. The new engine is replacing a Volvo MD7A.
>
>Calvin, Voyager#30
>
>
>
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