Fuel Tank Mod!
- Thread starter MossMan
- Start date
- Location
- vallejo, ca
take lots of pics, i plan on doing this soon.
thanks
thanks
- Location
- vallejo, ca
are you putting a stock cap on? if so you going to use rivetts or screws?
- Location
- Hutchinson, Kansas
what??????
WaveDemon
Not Dead - Notable Member
- Location
- Hell, Florida
why do this mod? moving the battery forward?
- Location
- So. IL
Umm is that going to hold water when your done... I don't think I would trust fuel in a tank stitched together with a soldering gun. There is a lot of slamming around in there...
yikes! sounds a little dangerous to me. why not get a smaller tank?
- Location
- Pueblo, CO
OK, hate to be the spoiler and I do hope it works for you but...
Plastic fuel tanks are made of cross-linked polyethylene. Once they are cast in the mold and as they cool, the molecular structure cross-links making it very strong. This is why these tanks don't respond all that well to heat guns or plastic welding. To get adhesion you would have to heat the surrounding area back to melting to unlink the chains and then apply the "patch" at the same temp. so that everything will link and bond completely. (and to be really honest, I'm not even sure this is even possible with this material).
On top of that, the used tank is likely saturated with gasoline & oil chemicals that have leached into the plastic, making it even harder to get anything to bond...
good luck!
BTW, I used to design gas tanks for boats :wink:
Plastic fuel tanks are made of cross-linked polyethylene. Once they are cast in the mold and as they cool, the molecular structure cross-links making it very strong. This is why these tanks don't respond all that well to heat guns or plastic welding. To get adhesion you would have to heat the surrounding area back to melting to unlink the chains and then apply the "patch" at the same temp. so that everything will link and bond completely. (and to be really honest, I'm not even sure this is even possible with this material).
On top of that, the used tank is likely saturated with gasoline & oil chemicals that have leached into the plastic, making it even harder to get anything to bond...
good luck!
BTW, I used to design gas tanks for boats :wink:
Flash-FX
No Square..No Round..FX-1
- Location
- South Jersey Shore
RMBC Freeride, Your 100% right.
Back in the late 80's I experimented with the fuel tank "mods" (see the 550 tank pix). I used a plastic welder w/polyethylene rod. The gas I used was pure nitrogen instead of compressed air (it was recommended). It held for a gas cap lid. http://www.x-h2o.com/attachment.php?attachmentid=35151&d=1189819007
There will be "issues", Good luck.
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tom21
havin fun
- Location
- clearwater FL
not sure if it is cheap at all but dont they make a special fiberglass and resin that is made to hold up to fuel? get some of that and make a mold from the old tank. then at least you didn't ruin the tank for nothin.
motorhead10
98 superjet for sale
- Location
- san diego, CA
superramjet was selling a waterdawg fuel tank in the classifieds
it might be what your looking for
it might be what your looking for
- Location
- Cheney lake Kansas
Why dont you fab one out of aluminum?