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#389410 - 05/19/17 04:54 PM Gas tank leak
Pat S Offline

1500

Registered: 01/16/02
Posts: 1800
Loc: Kapuskasing, ON
My '34 has a leak that disappears when the tank is below half. I suspected the pickup tube as it is about halfway up the front wall. I pulled the tank, filled it with water and sure enough it comes from two spots in the soldering around the pickup tube. What is the preferable way of fixing that?



://s1176.photobucketcm/user/landman2/media/IMG_5688.jpg.html][/URL]
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#389448 - 05/20/17 10:56 AM Re: Gas tank leak [Re: Pat S]
tonyw Offline




Registered: 05/23/02
Posts: 3995
Loc: Goulburn Australia
I would be getting the soldering iron hot, tipping the tank so the contents is away from the joint and resoldering it. Dont use a flame near the tank, with a flame heated iron do that well away from the tank but a electric iron will be fine. You will need a large body iron or high wattage electric.
You may end up completely removing the pipe, thoroughly cleaning and refitting to get it to seal fully.
Tony
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1938 1/2 ton Hope to drive it before I retire

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#389474 - 05/20/17 11:08 PM Re: Gas tank leak [Re: tonyw]
Pat S Offline

1500

Registered: 01/16/02
Posts: 1800
Loc: Kapuskasing, ON
Thanks Tony. I showed it to the guy who had machined the knees to accept bushings and he says he'll look after it. Looks like he's fixed several before. He says he'll pressure test it too.
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#389979 - 05/31/17 12:08 AM Re: Gas tank leak [Re: Pat S]
Pat S Offline

1500

Registered: 01/16/02
Posts: 1800
Loc: Kapuskasing, ON
Tank is resoldered and back in the car. It has 2-3 gallons of gas and the car has run. Now if it could only stop raining long enough to fill it up.Then we'll know for sure.



I stuck my engine shop in there by mistake. Here's the photo I wanted to post



Edited by Pat S (05/31/17 12:10 AM)
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#389980 - 05/31/17 12:13 AM Re: Gas tank leak [Re: Pat S]
canadiantim Offline

Backyard Mechanic

Registered: 06/26/07
Posts: 447
Loc: Alberta, Canada
Very cool looking models there! Thought the scene was real except the floor is too clean lol. Gas tank soldering looks good too.
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1938 Canadian Pontiac Business Coupe (aka a 1938 Chevy Coupe with Pontiac shaped front sheet metal - almost all Chevy!)
1975 4-speed L82 Vette

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#389990 - 05/31/17 08:19 AM Re: Gas tank leak [Re: Pat S]
tonyw Offline




Registered: 05/23/02
Posts: 3995
Loc: Goulburn Australia
I like your engine shop, would like to have it at my place. The soldering job looks good too.
Tony
_________________________
1938 1/2 ton Hope to drive it before I retire

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