Hello,
A mate has an 80 series Landcruiser with a large auxilliary fuel tank he uses to run 100% oil. He uses the standard tank to run diesel for start up shutdown.
He runs a Vormax and was still getting a lot of gunk deposits that was causing grief. After scraping inside the tank around the sender unit and finding goo on the end of his probe, he cut the bottom out of the tank to reveal a dastardly disgusting mess.
The facts as I know it:
Theory is that the steel of the fuel tank acted as a catalyst to the splashing fuel, causing it to react, oxidise and stick to the sides and top of the tank.
Solution.
He cleaned then painted the inside of the tank with two pack epoxy paint, then welded up the tank.
After a month or so, he has had no further problems.
Conjecture:
There is an article on oxidisation by <a href="http://www.frybrid.com/forum/attachment.php?attachmentid=1491&d=1167782933"> Joe Beatty</a>.
I'm not looking at getting into a discussion about Joe Beatty's article, or the use of copper or oxidisation and polymerisation; simply presenting the photos that I took for the benefit of others.
I hope they are useful
Tim
A mate has an 80 series Landcruiser with a large auxilliary fuel tank he uses to run 100% oil. He uses the standard tank to run diesel for start up shutdown.
He runs a Vormax and was still getting a lot of gunk deposits that was causing grief. After scraping inside the tank around the sender unit and finding goo on the end of his probe, he cut the bottom out of the tank to reveal a dastardly disgusting mess.
The facts as I know it:
- Plain steel tank
- Not heated
- Cottonseed
- Polymerisation was worse at top of tank, nil at bottom.
- He filled a 9l plastic bucket with the scrapings.
- I have some wrapped in foil and it's gone quite plasticky/rubbery over time.
Theory is that the steel of the fuel tank acted as a catalyst to the splashing fuel, causing it to react, oxidise and stick to the sides and top of the tank.
Solution.
He cleaned then painted the inside of the tank with two pack epoxy paint, then welded up the tank.
After a month or so, he has had no further problems.
Conjecture:
- Was it the cottonseed oil?
- Is it because it was a large aux tank there was lots of movement and splashing?
- Is it bound to happen to all of us at random?
There is an article on oxidisation by <a href="http://www.frybrid.com/forum/attachment.php?attachmentid=1491&d=1167782933"> Joe Beatty</a>.
I'm not looking at getting into a discussion about Joe Beatty's article, or the use of copper or oxidisation and polymerisation; simply presenting the photos that I took for the benefit of others.
I hope they are useful
Tim
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