Diesel tank clean-out port

Jan 22, 2008
18
Catalina 320 Bristol, RI
I plan to cut a hole in the fuel tank of my Catalina 320 and install a SeaBuilt inspection/clean-out port. Do I have to worry about internal baffles?
 
Jul 7, 2004
8,492
Hunter 30T Cheney, KS
I would contact Catalina if it were me. How are you going to cut it and avoid metal particle contamination?
 
Jan 22, 2008
18
Catalina 320 Bristol, RI
Been a week since I e-mailed Catalina and no reply yet.
With hole saw in the cut, I plan to vacuum up chips during the cut. Then vacuum out whatever falls inside the tank, along with existing sludge. The SeaBuilt web site provides instructions. BTW, the tank already has been pumped out.
 
Aug 16, 2009
1,000
Hunter 1986 H31 California Yacht Marina, Chula Vista, CA
Is this a fiber tank or metal? The H31 is fiber and I found no baffles inside at all. While I was chopping up the tank I also added a new pickup tube and return for a fuel polishing system. The pickup goes to a diesel filter then to an electric fuel pump that pump the filtered fuel back into the tank via the return.
 
Jan 22, 2008
18
Catalina 320 Bristol, RI
Turns out the tank still had a manufacturer's label on it (in a location I originally couldn't get to). Armed with a phone number and model number, I found out the original Utah company was no longer in business, but the person who answered the phone referred me to another welding company nearby, some of whose employees had worked for the OEM and who remembered that, indeed, there was a single baffle, separating the roughly rectangular tank into two roughly square sections. Now I know where not to cut.
 

Jwhy

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Feb 11, 2013
101
Catalina 320 Kilmarnock
I’m thinking about adding a fuel tank port also. How did you get access to the tank?