Chevy gas tank...

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11-17-2006, 09:13 AM
jerryg79

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Quote:

Originally Posted by KrazyKarl02

I think the tank I am talking about was chromed, so probably not aluminum. Anywho aren't you worried this smaller tank will keep your highway miles? :flipoff2:

This one karl?

They built it out of the chromed peterbilt gas tank right?
11-17-2006, 09:23 AM
Doug Krebs

Quote:

Originally Posted by eight

I advise to tack about a 16 ga strip on the inside of the tank to use as a backing. Then weld that to each side of the tank, then put a larger bead that would cover both beads over it to ensure no leaks. Make sure its really clean to prevent pinhole leaks from contamination, and use a small wire.

It would be easiest to pressurize the tank with your air compressor and use soapy water to test for leaks. That way when you find a leak you just depressurize and fill it.

Hmm... good idea with the strip inside, I think I'll do that.

It would be nice to pressurize the tank, but I'd have to cap all the holes. The filler neck wouldn't be too hard, but where the sending unit goes might be a pain. Come up with a good Idea for that :)
11-17-2006, 09:27 AM
tigweld

put the sendin unit back in Hole filled seems easy to me :flipoff2:
11-17-2006, 09:28 AM
Doug Krebs

Quote:

Originally Posted by tigweld

put the sendin unit back in Hole filled seems easy to me :flipoff2:

Yeah I guess I'll just have to cap all those holes too.
11-17-2006, 01:40 PM
CRaSHnBuRN

I thought I heard about the people who make POR 15 making something that sealed the inside of gas tanks and didn't react with gasoline
11-17-2006, 11:47 PM
Doug Krebs

Well I got everything cleaned up and ground clean. Started welding on the backing piece to the bottom half. Got two sides done and ran out of wire. The spool said oct of 2002 on it! I should weld more. Anyways that happened at 9:09 right after home depot closed. I'll start early tommorow morning again.
11-17-2006, 11:59 PM
Graystroke

Quote:

Originally Posted by CRaSHnBuRN

I thought I heard about the people who make POR 15 making something that sealed the inside of gas tanks and didn't react with gasoline

they do...you acid etch it first and then poor in some epoxy and roll it around in there...it is suppose to work failry well...probably easier than what dougs doing. that's a lot of work for a gas tank!
11-18-2006, 12:07 AM
JeepPhisherman

It's not like he has anything else to do or anything :flipoff2:
11-18-2006, 11:37 AM
Doug Krebs

Quote:

Originally Posted by Graystroke

they do...you acid etch it first and then poor in some epoxy and roll it around in there...it is suppose to work failry well...probably easier than what dougs doing. that's a lot of work for a gas tank!

chirst you're telling me... I have the por stuff left over from the motorcycle. I just smeared it all in the bottom half, as I wire wheeled the whole thing. Waiting for it to dry before install the baffle and the weld the top half on.

Edit: Also I'm not sure how that crap would work with the baffle. I'm not sure it would get under it. The baffle is plastic and I'm not sure it would stick to it, but it would get all over it and probably wind up in clumps inside of it.
11-18-2006, 06:18 PM
BMFScout

I didn't read this thread for a few days because I thought, How interesting could a thread about a gas tank be?" You showed me Doug!!

(Sorry didn't mean to be a ****in ******* ;) )
11-19-2006, 01:07 AM
Doug Krebs

Got it all welded up and then pressure tested it. Not sure how much pressure I had in it, but I didn't feel like rigging up a pressure gauge. I had a total of six leaks. All of those were tiny cracks from when the weld cooled and contracted the metal around it. All of those spots where where I did a larger weld and obviously got to hot.

Also modified the sending unit to be shorter. Tank height is now 7 inches.
11-19-2006, 03:30 PM
agjohn02

you cut it up?!?! i need that tank, i let you borrow it for test fitting!
11-19-2006, 03:41 PM
DRAGOONRANCH

Quote:

Originally Posted by Doug Krebs

Ok, so I chopped both tanks in half.

I thought he only did the one, but guess not....
No respect I tell ya, no respect. :flipoff2:

Quote:

Originally Posted by Doug Krebs

Garrett helped me with the first one and then he ran off like a little girl.

Teeheehee, that is funnay :beer:
We had an Iraqi dumptruck driver check his tank with a lighter a while back, he lucked out and only lost some hair and eyebrows along with a few nasty burns to his hands and forehead. Put a couple good bulges in the tank too. That was the same job a dozer operator told one of the Iraqis a golf ball was "good eatin" when he asked what it was. Guess he thought it was a jawbreaker or somethin. :flipoff3:

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