[Public-List] Engine cooling plumbing - Yanmar

[Mike Lehman]

The mixing elbow is a weak part of the Yanmar engine and needs replacing
periodically. As for the water line, you can estimate it to be about 3-4"
below the bottom of the sink.

On Nov 27, 2017 2:33 PM, "Chris Martin via Public-List" <
public-list at lists.alberg30.org> wrote:

>  Hello
> Please let me know when I reach my question limit. While I'm waiting on
> parts I started taking more the boat apart. I cleaned the heat exchanger,
> plan to replace cooling hoses and impeller and am thinking about the mixing
> elbow. One thing I'm not sure about is the layout of the cooling line from
> the heat exchanger to the mixing elbow. I've found a few opinions on this,
> anyone gone through this lately? Yanmar 2gm20-f.
> I found this which is close to what I have
> http://i1121.photobucket.com/albums/l518/svsundowner/boatexh.jpg
>
> I need to figure out the waterline measurement, it doesnt seem like 12" is
> an issue.
> I would like to remove this if only to simplify and reduce the number of
> connections/clamps. Just put it back the way it was, replace the loop/vent?
> Or just straight shot from the heat exchanger to the exhaust?
> Also, my mixing elbow is soaking, anyone have a good source for these? How
> long do they normally last? This is the first I've touched this part of the
> boat so I have no idea how old it is.
> Thanks
> Chris
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