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Engine, Fuel & Lubrication Inspection ports for fuel tanks

Equipment relating to engine fuel systems; from the tank to the lines, to the pump, to the filters to the injectors and the lubricants which keep it running.

nquigley

Sustaining Member
This US company makes excellent fuel tank inspection in several sizes. They have a clever design that allows easy installation in an existing tank, a good template for drilling holes and very good instructions. I installed an 8" port near the fuel pick-up unit and a 6" port further down the tank, past the central baffle, in my 32-3's tank.

 
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NickSal

Junior Member
This US company makes excellent fuel tank inspection in several sizes. They have a clever design that allows easy installation in an existing tank, a good template for drilling holes and very good instructions. I installed an 8" port near the fuel pick-up unit and a 6" port further down the tank, past the central baffle, in my 32-3's tank.
Check this company out,
6 inch access for 39.00
 

Christian Williams

E381 - Los Angeles
Senior Moderator
Blogs Author
Looks like a good deal. I paid $100 for two 8"plates only, made by a local metal shop...and I had to buy the machine screws.
 

Jerry VB

E32-3 / M-25XP
I can't figure out how it assembles...but the price is right.
If you are going through the effort of adding a port, I would add the 8" OD (6" ID) rather than the 6" OD (4" ID) one.

If you click on the assembly drawing, you will see the inner ring has a split in it. You put the ring in vertically, sliding the split along the top of the tank. Once the "far" side of the ring clears the hole, you pivot the ring down and slide it back off the top of the tank so it is now inside the tank.

There are two "inside" screws that hold the ring to the top of the tank when all the cover screws are removed. At that point you put the gasket and top on with the rest of the screws. Clever.
 

peaman

Sustaining Member
I installed an 8" port near the fuel pick-up unit and a 6" port further down the tank, past the central baffle, in my 32-3's tank.
It would be great if you could tell us where your baffles are? Are the locations visible from the exterior, or did you sound for them?
 

nquigley

Sustaining Member
It would be great if you could tell us where your baffles are? Are the locations visible from the exterior, or did you sound for them?
you'll be able to see the location of the single baffle by a series of elongated dimples across the tank - which match the baffle's weld points on the inside. You can also 'sound' for it. I didn't 'center' the 8" port in the wider half of the tank - instead, I cheated a bit toward the fuel pickup to have a bit better access to and viewing of that installation. Just make sure it's still close enough to the baffle so you can reach it for cleaning with your arm through the hole (how long is your arm?). I think you can get away with a smaller (6") port on the center of the other end as it's narrower and easier to reach all parts (unless you have biceps too big for that hole ;-) ).
 

patrscoe

Member III
I used left over 1/4" thick G10, cut out a 8" circle out of the material and tap and used a fuel resist gasket.
I like the inner ring - great ideal with a harder metal at the threads / tap - which is the problem I have with my dyi design.
The problem with my design access cover is that the aluminum tank, where I have the tap / threads is too soft. I removed the access cover last winter and 2 of 9 machine screws stripped while I re-tightening them. G10 holds the threads well but not so much with alum.
 
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