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  1. #1
    Join Date
    Apr 2002
    Location
    Anaheim, CA
    Posts
    672

    Default Fuel Cell Info - Life Span & How Much Foam

    1 - Does anyone have any idea what the service life of a JAZ polurethane fuel cell is once exposed to pump gasoline?

    2 - How much foam should be put into my fuel cell? I see it's sold in relatively large blocks. Should blocks of the stuff be crammed into it until they fill up the interior (not in a compressed state, just relaxed)?
    Best Regards,
    Dan Gerber
    Anaheim, CA
    '62 Special 464 BBB Coupe
    '72 Skylark Custom 350 Convertible

  2. #2
    Join Date
    Feb 2002
    Location
    Wesley Chapel, FL.
    Posts
    221

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    mine cracked after 8 years. The foam also deteriated and got sucked into the pump and to the regulator. Now I run a new cell with no foam. But that was with leaded racing fuel. Not sure about pump gas and how it eats things compare to high octane fuel, that's my experience!

  3. #3
    Join Date
    Mar 2005
    Location
    Orlando Florida
    Posts
    6,249

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    I have a fuel cell on my engine stand, that has foam in it.
    The foam does not look compressed, just cut to the approx size of the inside of the fuel cell so it fits snug.
    Curtis
    ______________


    1970 GS 455 4-Speed
    1972 GS 350 Convertible (SOLD)

    My Blog http://72buickgs.blogspot.com/

    My Buick Facebook Page https://www.facebook.com/groups/BuickGSOwners/

    "Whether you think that you can, or that you can't, you are usually right"

  4. #4
    Join Date
    Sep 2004
    Location
    Michigan, USA
    Posts
    15,011

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    I've had a 22 gallon circle track fuel cell in the car since 1999. It came with foam, filled approximately 3/4. Never any problems with pump fuel except for the sending unit; the adhesive holding the small magnet on the float gave up.

    I'm going with an aluminum fuel cell this year to keep up with regulations since the plastic cell was under the trunk floor where the tank used to be, a no-no at the track unless it's enclosed.

    Devon
    Fuel & Brake Systems Engineer
    "I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong." - Feynman
    "Good data is precious. The problem I have is when some damned fool fails to use it properly." - Slingerland

  5. #5
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    Mar 2005
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    Orlando Florida
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    Default Re: Fuel Cell Info - Life Span & How Much Foam

    Quote Originally Posted by DaWildcat View Post
    I've had a 22 gallon circle track fuel cell in the car since 1999. It came with foam, filled approximately 3/4. Never any problems with pump fuel except for the sending unit; the adhesive holding the small magnet on the float gave up.

    I'm going with an aluminum fuel cell this year to keep up with regulations since the plastic cell was under the trunk floor where the tank used to be, a no-no at the track unless it's enclosed.

    Devon
    Yes I should have mentioned that too, the foam fills only about 3/4 of my 3 gallon fuel cell too.
    Curtis
    ______________


    1970 GS 455 4-Speed
    1972 GS 350 Convertible (SOLD)

    My Blog http://72buickgs.blogspot.com/

    My Buick Facebook Page https://www.facebook.com/groups/BuickGSOwners/

    "Whether you think that you can, or that you can't, you are usually right"

  6. #6
    Join Date
    Aug 2002
    Location
    Spring Grove, IL
    Posts
    1,016

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    Dan,

    You can usually tell if the foam is going bad, just press between your fingers and rub back and forth. It will come apart if it is bad and usually pump gas is harder on it than race fuel. It will plug you fuel filter and little pieces can then go through pump and into carburetor where it usually keeps the float from sealing. I change mine every 3 years in the race cars.
    Also I only run one piece that covers up the outlet to fuel pump (approximately 5"x5" from side to side). That keeps the fuel from sloshing. No advantage to run more than that in my opinion and you can easily see how much fuel you have in cell.

    Tom

  7. #7
    Join Date
    Feb 2002
    Posts
    1,973

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    The first thing I do is remove the foam and throw it in the trash.

  8. #8
    Join Date
    Mar 2005
    Location
    Orlando Florida
    Posts
    6,249

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    I have a fuel cell, its older but never been used.
    Ive been to lowes, home depot, advance and autozone and cannot find fittings for it! I plan to use rubber line and just want a nipple that I can clamp some rubber hose onto...

    But cant find the correct size fittings. some strange flare fittings? are they metric?

    Im using it for an engine stand.. so I may tear the foam out too.
    Curtis
    ______________


    1970 GS 455 4-Speed
    1972 GS 350 Convertible (SOLD)

    My Blog http://72buickgs.blogspot.com/

    My Buick Facebook Page https://www.facebook.com/groups/BuickGSOwners/

    "Whether you think that you can, or that you can't, you are usually right"

  9. #9
    Join Date
    Sep 2004
    Location
    Michigan, USA
    Posts
    15,011

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    Curtis, they are most likely AN fittings. You can purchase hundreds of suitable pieces from Summit, Jeg's, etc.

    http://en.wikipedia.org/wiki/AN_thread

    Devon
    Fuel & Brake Systems Engineer
    "I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong." - Feynman
    "Good data is precious. The problem I have is when some damned fool fails to use it properly." - Slingerland

  10. #10
    Join Date
    Mar 2005
    Location
    Orlando Florida
    Posts
    6,249

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    Quote Originally Posted by DaWildcat View Post
    Curtis, they are most likely AN fittings. You can purchase hundreds of suitable pieces from Summit, Jeg's, etc.

    http://en.wikipedia.org/wiki/AN_thread

    Devon
    Thats what it must be! I knew there was another name on the fitting!
    I'll see if I can find somewhere local next week that carries them
    Thanks!
    Curtis
    ______________


    1970 GS 455 4-Speed
    1972 GS 350 Convertible (SOLD)

    My Blog http://72buickgs.blogspot.com/

    My Buick Facebook Page https://www.facebook.com/groups/BuickGSOwners/

    "Whether you think that you can, or that you can't, you are usually right"

  11. #11
    Join Date
    Apr 2002
    Location
    Anaheim, CA
    Posts
    672

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    Hey, Jeff.

    Why toss it out?

    Actually, the foam turned out to be a non-issue for me. I ended up ordering a RCI cell because its size and configuration matches what's already in the car (more convenient than cutting and welding to make something else fit). The RCI tech people told me that they do not install foam in tanks with fuel gauge senders because it interferes with the operation of the sender.

    Thanks for your input, everyone.
    Best Regards,
    Dan Gerber
    Anaheim, CA
    '62 Special 464 BBB Coupe
    '72 Skylark Custom 350 Convertible

  12. #12
    Join Date
    Sep 2004
    Location
    Michigan, USA
    Posts
    15,011

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    Quote Originally Posted by Dan Gerber View Post
    Hey, Jeff.

    Why toss it out?

    Actually, the foam turned out to be a non-issue for me. I ended up ordering a RCI cell because its size and configuration matches what's already in the car (more convenient than cutting and welding to make something else fit). The RCI tech people told me that they do not install foam in tanks with fuel gauge senders because it interferes with the operation of the sender.

    Thanks for your input, everyone.
    Dan, it sounds like RCI needs to train their sales staff better. They still sell some aluminum fuel cells with both sending units and foam. Which part number did you order?

    Devon
    Fuel & Brake Systems Engineer
    "I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong." - Feynman
    "Good data is precious. The problem I have is when some damned fool fails to use it properly." - Slingerland

  13. #13
    Join Date
    Apr 2002
    Location
    Anaheim, CA
    Posts
    672

    Default Re: Fuel Cell Info - Life Span & How Much Foam

    Hello, Devon.

    I ordered polyurethane "pro-street" fuel cell number 1160S.
    Last edited by Dan Gerber; 03-06-2010 at 03:22 PM. Reason: Spelling error
    Best Regards,
    Dan Gerber
    Anaheim, CA
    '62 Special 464 BBB Coupe
    '72 Skylark Custom 350 Convertible

 

 

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