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| Home > Help Needed / General Tech Chat > Powdercoating fuel tank | |||||||
 489 Posts Member #: 9159 Senior Member Devon |
2nd Jun, 2013 at 12:20:54pm
Hi guys, probably an easy question but I just want to make sure, would it be ok to powdercoat my alloy fuel tank? the only thing that worries me is that it's foam filled and I'm not sure if it will be able to handle the curing temperatures, it hasn't been used so not a drop of petrol has been in it.
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 3673 Posts Member #: 9300 Post Whore Quarry Bonk |
2nd Jun, 2013 at 12:33:49pm
I'm guessing the sponge would probably burn/wilt :/
On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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Forum Mod  5933 Posts Member #: 784 9 times Avon Park Class C winner Milton Keynes |
2nd Jun, 2013 at 01:45:14pm
Take the foam out I seriously doubt it! |
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3594 Posts Member #: 655 Post Whore Northern Ireland |
2nd Jun, 2013 at 08:18:53pm
Take the foam out and have it anodised ( not the foam obviously, the tank lol )
9.85 @ 145mph
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489 Posts Member #: 9159 Senior Member Devon |
15th Jun, 2013 at 07:13:38am
Anodising sounds like a good idea!
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Forum Mod 5933 Posts Member #: 784 9 times Avon Park Class C winner Milton Keynes |
15th Jun, 2013 at 08:33:52am
How do you think they got it in there??? I seriously doubt it! |
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 308 Posts Member #: 10369 Senior Member Pickering, North Yorkshire |
15th Jun, 2013 at 09:56:52am
Take it to a body shop and have it painted? www.apsbikes.co.uk
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3594 Posts Member #: 655 Post Whore Northern Ireland |
15th Jun, 2013 at 10:05:57am
On 15th Jun, 2013 paul wiginton said:
How do you think they got it in there??? They insert the foam before welding it shut. At least that's how my tank was made years ago. And obviously cheapest and quickest way for them to do it. A friend recently got his new tank anodised black....and have to say, it does look superb. If the tank is scraped or marked, or corroded...ie old, obviously any anodising finish wont be as nice though. If it's brand new, you'll be good to go. Not sure how feasible it would be to anodise with the foam inside though. Although I guess if all apertures were sealed so none of the acid could get inside, you should be fine. I had my friends tank deliberately made with an access plate on top so we could remove the foam and gain access inside if needed. Edited by stevieturbo on 15th Jun, 2013. 9.85 @ 145mph
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Forum Mod 5933 Posts Member #: 784 9 times Avon Park Class C winner Milton Keynes |
15th Jun, 2013 at 01:50:22pm
On 15th Jun, 2013 stevieturbo said:
On 15th Jun, 2013 paul wiginton said:
How do you think they got it in there??? They insert the foam before welding it shut The foam should not be just one piece. It is usually inserted in 2 or more sections after welding. If you insert it before it will burn and make gases which will make the welding porous. Its quite amazing how large a piece of foam you can insert through a filler neck Edited by paul wiginton on 15th Jun, 2013. I seriously doubt it! |
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489 Posts Member #: 9159 Senior Member Devon |
23rd Jun, 2013 at 01:24:17pm
Cheers chaps, I'll have a lookalike taking out the foam and enquire about getting it anodised. |
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3594 Posts Member #: 655 Post Whore Northern Ireland |
23rd Jun, 2013 at 04:22:57pm
On 15th Jun, 2013 paul wiginton said:
On 15th Jun, 2013 stevieturbo said:
On 15th Jun, 2013 paul wiginton said:
How do you think they got it in there??? They insert the foam before welding it shut The foam should not be just one piece. It is usually inserted in 2 or more sections after welding. If you insert it before it will burn and make gases which will make the welding porous. Its quite amazing how large a piece of foam you can insert through a filler neck My tank is a large rectangle, and the only opening a 2" hole at one end for the filler neck to bolt on. There is a small opening on the top for the VDO sender. This extends down into the foam, so the foam is cut to perfection larger diameter than the VDO sender itself. It's a perfectly round hole however they cut it. I really cant see any way they could have done mine without welding it shut with the foam inside. Maybe when welding they purge the inside with argon too. My friends tank was made elsewhere, as I said we got an access plate fitted to the top. That guy just seemed to stuff whatever bits of foam he had lying about into the tank. Lots of small pieces, but bigger than the access hole itself. Edited by stevieturbo on 23rd Jun, 2013. 9.85 @ 145mph
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Forum Mod 5933 Posts Member #: 784 9 times Avon Park Class C winner Milton Keynes |
23rd Jun, 2013 at 05:16:39pm
Its surprising how small this foam goes. I have squeezed two 12"x12"x24" pieces through a 1 3/4" filler neck on a tank Ive made.
I seriously doubt it! |
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3673 Posts Member #: 9300 Post Whore Quarry Bonk |
23rd Jun, 2013 at 05:27:06pm
You have to think that the foam needs to be able to only just stop fuel sloshing about and just have the minimum amount of displacement so as it doesn't just absorb it like a normal car sponge. Therefore it will squeeze down much smaller than normal sponges. On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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