Replacing Head holding tank 1986 338 commander fly bridge

Hi All

  So I'm going to replace my Black tank,  24 gallon, its has a hole at the top and seen better days!!!  Aluminum, going with Poly.  It seems pretty straight forward, its mid ship and accessible from the engine bay..   Just unscrew hoses and hold down it seems??

A Bigger question is, How would the fuel tanks come out if I ever need too???  Who engineered that install!!!

Rob s

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There’s boats out there that you have to remove engines or even cut the deck out to get the tanks out. They install that stuff before they joint the deck. 

I see that,  Thats crazy, Hope I don't need to ever replace them, I'd rather add one between the engines ...

Mike H said:

There’s boats out there that you have to remove engines or even cut the deck out to get the tanks out. They install that stuff before they joint the deck. 

Removing the fuel tanks you need to cut the transom right behind the tanks to slide them out. Very costly project. 

So After a restless night looking things up about the gas tanks I was at the boat today this is a 1986 338 commander I have the cabin the bunks and then the like so for you love seats a Sectional with table ,well looking further into it the bottom of both of those bunks and love seats are screwed down and lo and behold you could pull the tanks right through the cabin that would be huge if I ever needed to do it great news

HI All

 I CUT out the Old holding tank, Ill post some pics tomorrow.Added a Used Poly Tank. I have a HUGE boat yard near me,  The old one was about 2 inches to wide to pull out of course, So I went to town with a Reciprocal saw...

It was completely rotted !!!   The boat had been on the dry for awhile ,the PO got it and started to restore it.

Now I'm tracing the AFT Lights and NAV Light issue, Not lighting, But when I give direct power they work, So a ground likely or switch, Tomorrows work..


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