I’ve built them before. 30 minutes while taking my time. Super simple job.
Four hours and I’d have a tank built as well.
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Nah not a 30 min job, here is a picture of what I pulled out.
Attachment 135749
This is what I put in as i wanted to retain the frontrunner gravity feed tank (not a straight fit though)
Attachment 135748
Dazzler, that's what I was looking for but thinking about it a bit more, I've opted for what u have in the 2nd photo. Your 1st photo is what I originally wanted but the cost to have something like that fabricated became too costly and unfortunately, no one sells anything like that readily made anymore....
Anyhow the bottom one is from here:
LOCKABLE MARINE BOAT DECK DIESEL FUEL FILLER 50mm HOSE CAST 316 STAINLESS STEEL | eBay
I had to shorten the neck by half (about 50mm) to make it work.
For your benefit this is how it looks now:
Attachment 135757Attachment 135758Attachment 135759
Goodluck!
in those pics there was a breather pipe added (20mm). this doesn't need to be there as a T piece fitted somewhere up high will do the same thing.
so then it just a matter of taking the filler neck to the exhaust place, they'll have it done in no time