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Old 06-04-2012, 02:25 PM   #13
skipperdude
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City: Whittier AK
Vessel Name: Apache II
Vessel Model: 1974 Donald Jones
Join Date: Oct 2007
Posts: 3,147
To remove the tube bundle. Pull the end cap off the side where the water enters.
In the end cap you will find a devider and two pencil zincs or what is left of them. The other side will have the fuel priming pump mounted to it.

Once off you will see the ends of the tube bundle you should be able to pry gently on the end plate to allow the tube bundle to slide out.

It is long and kind of heavy but not too much. take it to a radiator shop and have it hot tanked and tester for leaks.
If there is a leak the usual fix is to plug the leaking tube both ends

Replace the gasket when reinstalling the tube bundle. It is really as easy as that.

The good thing is you will get to understand exactly how your heat exchanger works. Every engine is different.
This is just something I did on my 3208N.A.

Sd
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