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  1. #1
    mike.t's Avatar
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    Gas Tank

     



    It appears I have a aftermarket gas tank in my 32' sedan. It has a threaded cap on it. Anyone have an idea of who made the tank? Trying to figure out what type of feed it has to the carburetor and if there is a sock inside and should it be a vented or non vented cap. Sorry about all the questions. Just trying to figure out a problem.
    Thanks
    Mike

  2. #2
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    A lot of street rod gas tanks are manufactured by Tanks, Inc. You might check their website.
    TANKS Inc. gas tanks for street rods, muscle cars, custom cars and trucks


    Lynn
    '32 3W

    There's no 12 step program for stupid!

    http://photo.net/photos/Lynn%20Johanson

  3. #3
    pepi's Avatar
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    "Just trying to figure out a problem."

    Has the car ever run and this is a new problem?

    Is the problem no fuel flow to the carburetor, starts but dies shortly?

    Said it has a threaded gas cap, do you see a tank vent? The tank will need a vent on the tank or in the cap for the fuel to flow. Without a vent a vacuum is created and fuel flow will stop.

    To check this remove the gas cap and see if it solves your problem. The next step would be to remove the line from the fuel pump tank feed, the fuel should flow out, gravity fed from the tank.

    Some quick checks using the information given and my crystal ball.
    I have two brains, one is lost and the other is out looking for it

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    My Tank has a threaded cap-it was made by Rock Valley-

    Rock Valley Antique Auto Parts
    Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?
    -George Carlin

  5. #5
    mike.t's Avatar
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    pepi.Disconnected the line from the tank to the pump and the gas trickled out stopped. removed the cap and the hose and gas came out but not a very strong stream ( crud in the tank?) Drove the car for about 20 some miles on the freeway and streets all was ok (full tank of gas) Stopped 3 times since on short runs around the block. Thanks
    Mike

  6. #6
    mike.t's Avatar
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    RumRumm. Thanks. Looks like their tank.

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    Sounds like crud, can you disconnect the fuel line from the tank blow air back thru just the line . Reconnect to tank see if the flow speeds up not a fix but that might define the problem. Cannot see, think of a way just the fuel line would be the bad actor, unless it is rubber and is collapsing inside.

    Full tank not fun, reading that tank link I see this.
    • Ball check vent furnished with tanks requiring non vented caps

    Might be something to find and check, however "removed cap and not a very strong stream," still think it will be crud.
    I have two brains, one is lost and the other is out looking for it

  8. #8
    rspears's Avatar
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    A friend of mine had braided SS line from tank to engine, with an OEM style in-tank electric fuel pump. Replaced the pump, but chasing the problem like yours he found that the old SS line (25 to 30 years old) was totally eaten up inside by ethanol fuel and was developing pinhole leaks. If it's an older build with flexible line you might want to check, or simply replace with hard line or ethanol friendly SS line.
    TooMany2count likes this.
    Roger
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  9. #9
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    Thanks guys i'll keep ya posted.

  10. #10
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    Put a clear fuel filter on the car. Drove around the block and it died pulling in to my drive way. Fuel filter was dry. Turned it over it sputtered. Removed gas cap turned it over and fuel slowly filled up filter and ran. Let it run with the cap off and filter never filled back up. You can see some sputtering of fuel in the filter. Filter almost goes empty when I turn off the car.
    Thanks again
    Mike

  11. #11
    rspears's Avatar
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    I would expect your tank to have an anti-rollover vent valve, with the tube running up to a high point. You should be able to see it from the front, getting your head up by the differential and peeking into the top of the tank.
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

  12. #12
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    Thanks rs. What do i look for? And any fixes.
    Again thank you
    Mike

  13. #13
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    Starting to eliminate some things. How does one remove the gas tank?
    Thanks again
    Mike

  14. #14
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    Quote Originally Posted by pepi View Post
    Sounds like crud, can you disconnect the fuel line from the tank blow air back thru just the line . Reconnect to tank see if the flow speeds up not a fix but that might define the problem. Cannot see, think of a way just the fuel line would be the bad actor, unless it is rubber and is collapsing inside.

    Full tank not fun, reading that tank link I see this.
    • Ball check vent furnished with tanks requiring non vented caps

    Might be something to find and check, however "removed cap and not a very strong stream," still think it will be crud.
    Disconnected the line and blew in to it. At first not able to blow hard enough to do anything. After a bit it started blow air back toward the tank and had better flow.

  15. #15
    pepi's Avatar
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    There ya go getting it narrowed down, wonder what is floating around in the tank?

    I know this is hind sighted now, but I would suggest you disconnect the line at the tank end and clear it. Move that clear filter to the tank and attach the fuel line to the pump. Fuel flow from the tank thru the filter and then out the fuel line down to the pump.

    Monitor and catch the crud back there, can clean it easy also. See what it looks like and how fast it builds up. That will determine your next move.

    Happy hunting and good luck
    I have two brains, one is lost and the other is out looking for it

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