riversbikes Posted August 31 Report Share Posted August 31 Hi all, looking for some suggestions to potentially apply a liner to the inside of my aluminum fuel tank on my TT replica. It's been beat up a bit, but I like it as it adds some "patina" to the machine. I've had the underside modified to work on my frame/carburetor configuration. Even though the tank was pressure tested (2-3 psi) by the fabricator (who is a welding expert and used the tig process) I think a minute amount of fuel is getting out of the tank somehow. It certainly isn't a "leak", a "weep", or even a "sweat" of fuel -- I've just noticed a trace amount of fuel residue underneath the seam on the right hand side. All that I've seen are products that are designed to work with steel tanks. I'm wondering if anyone has a suggestion for a product (perhaps aviation or marine application) that would work in this case. Note that the tank is using a gravity feed (no pump) and I've checked that its properly venting and not building up any pressure. Quote Link to comment Share on other sites More sharing options...
TLRS Posted August 31 Report Share Posted August 31 3 hours ago, riversbikes said: Hi all, looking for some suggestions to potentially apply a liner to the inside of my aluminum fuel tank on my TT replica. It's been beat up a bit, but I like it as it adds some "patina" to the machine. I've had the underside modified to work on my frame/carburetor configuration. Even though the tank was pressure tested (2-3 psi) by the fabricator (who is a welding expert and used the tig process) I think a minute amount of fuel is getting out of the tank somehow. It certainly isn't a "leak", a "weep", or even a "sweat" of fuel -- I've just noticed a trace amount of fuel residue underneath the seam on the right hand side. All that I've seen are products that are designed to work with steel tanks. I'm wondering if anyone has a suggestion for a product (perhaps aviation or marine application) that would work in this case. Note that the tank is using a gravity feed (no pump) and I've checked that its properly venting and not building up any pressure. Is there a reason you don't want it welded up? Quote Link to comment Share on other sites More sharing options...
Thunderbolt Posted August 31 Report Share Posted August 31 Sounds like the seam is porous and needs going over again. 1 Quote Link to comment Share on other sites More sharing options...
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