Author Topic: fuel tank leak?  (Read 1880 times)

sam81663

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fuel tank leak?
« on: April 19, 2016, 06:00:35 PM »
Good Day Everyone,
When I installed my new gas tank, ('69 Camaro), I noticed the fuel pick up easily moved back and forth about four inches as I was putting the straps up. 
My question is where the pick up tube goes through the plate that goes over the rubber seal, does that tube have an O-ring on it that pulls up into that plate?  If the tube moved without that plate moving , does that mean a seal was broken? and what would be a good way to fix ? Solder or epoxy?
thank you all, Ron
Ron                                                                                   Restoring 69 coupe-? Kurt S. knows more about my car than i do!        Once owned 68 ss 350 powerglide on column - 69 396 ss rs 4 speed - 69 307 auto on console

BULLITT65

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Re: fuel tank leak?
« Reply #1 on: April 19, 2016, 07:29:05 PM »
Are you saying the tube rotates on the plate?
1969 garnet red Z/28 46k mile unrestored X77
-Looking for 3192477 (front) spiral shocks 3192851 (rear)
-Looking for an original LOF soft ray windshield
-Looking for original Delco side post negative battery cable part # 6297651AV

sam81663

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Re: fuel tank leak?
« Reply #2 on: April 19, 2016, 08:40:01 PM »
Yes. And it felt somewhat easy to move.I noticed it fighting with the tank straps.I didn't dare move it any more than I had to but it still felt loose.  By the way no gas added yet.
Ron                                                                                   Restoring 69 coupe-? Kurt S. knows more about my car than i do!        Once owned 68 ss 350 powerglide on column - 69 396 ss rs 4 speed - 69 307 auto on console

BULLITT65

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Re: fuel tank leak?
« Reply #3 on: April 19, 2016, 08:47:22 PM »
If the rod moves around on the plate, you have a problem. In general the sending unit has a tab on it that locates it in the ring on the gas tank. You may have a little play 1/8- 1/4 " of clockwise movement, but thats it. Its basically tank/gasket/sending unit/locking ring.

There should be zero movement once the locking ring is on.
1969 garnet red Z/28 46k mile unrestored X77
-Looking for 3192477 (front) spiral shocks 3192851 (rear)
-Looking for an original LOF soft ray windshield
-Looking for original Delco side post negative battery cable part # 6297651AV

sam81663

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Re: fuel tank leak?
« Reply #4 on: April 19, 2016, 09:03:35 PM »
That is the the question. Was a seal broken? and if so what kind of seal did they use? It is a GM fuel pick up.
I hate to pull the tank. IF i solder it am i going to mess up any kind of seal at that plate?
Thanks.
Ron                                                                                   Restoring 69 coupe-? Kurt S. knows more about my car than i do!        Once owned 68 ss 350 powerglide on column - 69 396 ss rs 4 speed - 69 307 auto on console

BULLITT65

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Re: fuel tank leak?
« Reply #5 on: April 19, 2016, 10:23:16 PM »
If you are asking is there a seal from the plate to the rod? The the answer is no, it is only soldered. The only seal is around the connection on the wire pole, and the rubber seal that goes between the sender and the tank.

I would just take the tank out and make sure you do it the right way. To many "what ifs" otherwise, and we are talking about a combustible material, so best to just make sure everything is air tight back there. I don't like reading all these stories on Hagerty's sight about guys classic cars catching fire, for bad/dumb luck.

Just my 2 cents, from my experience being around fuel.

Now if you were working on an 80's Toyota , I would say its good to go, and make sure its fully insured.... ;D
1969 garnet red Z/28 46k mile unrestored X77
-Looking for 3192477 (front) spiral shocks 3192851 (rear)
-Looking for an original LOF soft ray windshield
-Looking for original Delco side post negative battery cable part # 6297651AV

sam81663

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Re: fuel tank leak?
« Reply #6 on: April 20, 2016, 12:06:16 AM »
Thanks, Bullitt, good advice and yes that is the question I needed answered, how they sealed that tube.
Seeing as how the tank hasn't had any gas in it yet, I will pull the tank and re-solder. Thanks for your time, Ron
Ron                                                                                   Restoring 69 coupe-? Kurt S. knows more about my car than i do!        Once owned 68 ss 350 powerglide on column - 69 396 ss rs 4 speed - 69 307 auto on console

BULLITT65

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Re: fuel tank leak?
« Reply #7 on: April 20, 2016, 04:47:54 AM »
No problem.

(Post some pics of your car for us!) :)
1969 garnet red Z/28 46k mile unrestored X77
-Looking for 3192477 (front) spiral shocks 3192851 (rear)
-Looking for an original LOF soft ray windshield
-Looking for original Delco side post negative battery cable part # 6297651AV

sam81663

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Re: fuel tank leak?
« Reply #8 on: April 20, 2016, 06:36:51 AM »
I will try posting a picture but I have never had much luck.

Wow, they did turn out big at 200 kb
Ron                                                                                   Restoring 69 coupe-? Kurt S. knows more about my car than i do!        Once owned 68 ss 350 powerglide on column - 69 396 ss rs 4 speed - 69 307 auto on console

BULLITT65

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Re: fuel tank leak?
« Reply #9 on: April 20, 2016, 07:25:15 AM »
Wow, awesome pics. Thats a lot of tire.. :)

What did it look like when you got it.? How long have you had it?
1969 garnet red Z/28 46k mile unrestored X77
-Looking for 3192477 (front) spiral shocks 3192851 (rear)
-Looking for an original LOF soft ray windshield
-Looking for original Delco side post negative battery cable part # 6297651AV

sam81663

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Re: fuel tank leak?
« Reply #10 on: April 20, 2016, 07:51:07 AM »
It has been 8 years in the shop.Pulled it Home From a small town just west of Detroit.Former Drag Car. Guy had all the upholstery   in his attic including the fold down back seat. I reused all the chrome that came with the car. I had to send the front bumper to get it straightened and the cracks filled. Ninety percent of the parts were GM so I tried to reuse everything. All of the dash is OER or trim parts.The car really did surprise me at tear down even the rotating assembly was original GM 302. Pre X and no papers 
Ron                                                                                   Restoring 69 coupe-? Kurt S. knows more about my car than i do!        Once owned 68 ss 350 powerglide on column - 69 396 ss rs 4 speed - 69 307 auto on console

HawkX66

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Re: fuel tank leak?
« Reply #11 on: April 20, 2016, 11:55:34 AM »
Very sharp! By the way, in your sig, it's "Kurt S" not "Kirt". Figured you would want to know... I'd love to see that 69 SS396 too!
Dave
69 SS396 X66 L34 M21 BS
Z23 711 U17 Hugger Orange
Semper Fi! USMC 93-02

69Z28-RS

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Re: fuel tank leak?
« Reply #12 on: April 20, 2016, 12:39:11 PM »
Great looking car, made all the more beautiful with the HO (high output) paint..  :)    When you wear HO... one gets the checked flags and sometimes even a 'checkered wall'..  :)
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

sam81663

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Re: fuel tank leak?
« Reply #13 on: April 20, 2016, 06:00:02 PM »
PPG concept paint single stage paint on the car.My Wife did the wall when moved in and finished the garage.And the checkered flags i earned at a few dirt oval tracks around Wisconsin.
Ron                                                                                   Restoring 69 coupe-? Kurt S. knows more about my car than i do!        Once owned 68 ss 350 powerglide on column - 69 396 ss rs 4 speed - 69 307 auto on console