[Alberg30] Yanmar 3GM

[Henry Sharpe]

I put a 3 cyclinder Yanmar in #111.  Actually paid to have it done but
watched the process failrly closely.  Done in 1996.

Your questions:

1. --  I had a Grey Marine.  The moter bed was changed, new wood glasses in
and new motor mounts.  It was not "drastic" but the old bed could not be
made to work.

2.  Engine mounts were used.  (Memorable because they were not quite
tightened and the engine lost altitude on the inital cruise.)

3.  I changed the prop shaft and went to a dripless shaft seal and Max
prop -- no class racing in Seattle.  As I remember the shaft is a different
diameter that that of the Grey Marine.  I do not know about an Atomic 4.

4.  It fits and is servicable, but everything is tight.  I kept the old fuel
tank (monel the boat yard thought) and mounted it crosswise under the
cockpit.  It is shallow and a deper tank would be better.

5.  Exhaust works well.


----- Original Message -----
From: "DickInVA" <dickinva at yahoo.com>
To: <public-list at alberg30.org>
Sent: Wednesday, November 14, 2001 8:05 PM
Subject: [Alberg30] Yanmar 3GM


> I am going to buy a Yanmar 3GM to replace an Atomic4.  Has anyone
> replaced an Atomic4 with this particular Yanmar.  I need a lot of help
> before I start.  I know this engine may be overkill for an Atomic4 but
> my Atomic4 went to engine heaven and I got a great deal I couldn't pass
> up on a slightly used marine fresh water cooled Yanmar 3GM.
>
> 1. Does the motor bed in the boat have to change drastically?
> 2. Do you use the engine mounts or attach the engine directly to the
> boat?
> 3. Does the shaft or prop HAVE to change?
> 4. Can I put a 3GM in an Alberg 30?
> 5. Can the 3GM push the wet exhaust all the way up to the muffler?
>
> Any assistance anyone has would be greatly appreciated.
> Dick & Diana
> MyLady  #302
>
>
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