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308 gas fills slow

Discussion in 'Technical Q&A' started by luckydynes, Sep 28, 2005.

  1. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,872
    CA and OR
    Full Name:
    pit bull
    Hey all,

    This has been annoying me for years . . . my 308 takes gas real slow during fill ups . . . is it:

    1. The unleaded "flap"

    2. A blockage in the venting

    If no one else has problems with the stock "flap", I'm guessing it's somthing to do with the venting/check valves/charcoal canister. I've got the psgr gas tank out right now so it's a good time for me to look at it.

    Thanks,

    Sean
     
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  3. pete04222

    pete04222 Formula Junior

    Nov 1, 2003
    613
    Maine, USA
    Full Name:
    Peter Cyr
    you must have a problem with the venting. My 308 fills up just fine. Check the hose between the 2 tanks, if that is pinched it would cause the tank to fill slower.
     
  4. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,872
    CA and OR
    Full Name:
    pit bull
    Thanks for the reply . . . can't wait to be able to fill the car without holding the nozzle on "slow" the whole time!!!!

    Sean
     
  5. Chiaroman

    Chiaroman Formula 3
    Rossa Subscribed

    Apr 21, 2004
    1,596
    New Jersey
    Always was a little slow to fill and if I insert the nozzle and click the fill device to full speed it will "click" and shut off.

    Must stand there and slowly fill.

    Any other spot to check besides the hose between the tanks?

    Tom
     
  6. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,000
    Groton, MA
    Full Name:
    Verell Boaen
    My Euro 308 doesn't have the unleaded flap/nozzle fitting plate.
    It fills fast for most of a fill up. However, at stations with newer pumps, the saddle tank being directly fills seems to get ahead of gas flowing over to the other tank. If I stop & wait half a minuite for things to equalize, I can usually complete the fill-up at full feed.

    With older pumps, I can fill up at max. flow.
     
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  8. hardtop

    hardtop F1 World Champ

    Jan 31, 2002
    11,249
    Colorado
    Full Name:
    Dave
    The pre-unleaded carb cars fill quick, but after that, they are all slow as are 328's.

    Dave
     
  9. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,000
    Groton, MA
    Full Name:
    Verell Boaen
    Umm, my car's a '82 Euro GTS QV...
     
  10. spike308

    spike308 F1 Rookie
    Silver Subscribed

    Nov 8, 2003
    4,008
    Austin TX!
    Full Name:
    Mike Z
    Mine is slow too.... but if a pinch was the case, wouldnt you not be able to fill the tank completely?
     
  11. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,134
    Austin, TX USA
    Full Name:
    Greg

    I think he's talking about the vent hose between the tanks....


    Greg
     
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  13. hardtop

    hardtop F1 World Champ

    Jan 31, 2002
    11,249
    Colorado
    Full Name:
    Dave
    The Euros have wide mouths because they don't have cats and do not require unleaded.

    Dave
     
  14. PT 328

    PT 328 F1 Rookie
    Silver Subscribed

    May 1, 2005
    3,438
    My 328 fills slowly at all gas staions except chevron. At chevron it fills as quickly as it seems to go when i step on the gas pedal.
     
  15. Dr Tommy Cosgrove

    Dr Tommy Cosgrove Three Time F1 World Champ
    Rossa Subscribed Owner

    May 4, 2001
    31,369
    Birmingham, AL
    Full Name:
    Tommy
    Mine does this too. Always has.
     
  16. pete04222

    pete04222 Formula Junior

    Nov 1, 2003
    613
    Maine, USA
    Full Name:
    Peter Cyr
    I don't mean pinched shut, I mean pinched smaller. A little kink perhaps? All the gas goes into the left tank, then flows through a hose to the right tank. If the hose is restricted, you have to wait for the tanks to equalize before you put more gas in.

    Like I said, my car fills up just fine.
     
  17. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,872
    CA and OR
    Full Name:
    pit bull
    Okay, so it sounds like some with the flap do not have this problem . . .


    The gas pumps in CA might be more sensitive with the "fume catching" device that's on the end of the pump . . . maybe that's the reason you guys with the flap that aren't having problems don't have the "sophisticated" emissions lowering fuel pumps where you're at?

    At some stations I have to turn the handle upside down to get it to take fuel even slowly, but one or two stations it has taken fuel normally (that's in the last 10 years). I guess if I can't find anything wrong with the venting/charcoal canister, I might consider modifying the "flap".

    Sean
     
  18. bill308

    bill308 Formula 3
    Silver Subscribed

    May 13, 2001
    1,082
    Windsor, CT
    Full Name:
    Bill Sebestyen
    I have this same problem with my 78 GTS. I replaced all the hoses 2 years ago, there are no kinks, anywhere. The problem occurs even with low tanks. I don't have a solution but wish I did. There is a restrictor plate in the filler neck. I wonder if the filler hole was opened up if this would cure the problem?

    Bill
     
  19. jon s

    jon s Formula Junior

    Mar 9, 2005
    509
    pocasset ma
    Full Name:
    jon shoukimas MD
    81 gtsi; never had a problem with filling tank - jon s.
     
  20. ria

    ria Formula Junior

    Nov 2, 2003
    725
    ohio
    Full Name:
    phill
    80 308gtsi slow fill on my car.
     
  21. Gianluca

    Gianluca Formula Junior

    May 6, 2003
    349
    Centreville, Virgini
    Full Name:
    Gianluca Chegai
    '81 GTSi, all new hoses, slow fill.
     
  22. BigAl

    BigAl F1 Veteran

    Mar 17, 2002
    6,146
    TX
    Full Name:
    GSgt Hartman
    interesting situation. not seen it on mine, have to keep tabs...
     
  23. Steve Magnusson

    Steve Magnusson F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    19,940
    Texas
    Full Name:
    Steve Magnusson
    Like Sean, I found on my ex-308 was that if I rotated the filling nozzle assembly upside-down from the "conventional" position it would accept a faster flow rate without shutting off prematurely (although I still wouldn't go full blast, and you should NEVER leave the filling nozzle unattended IMO).
     
  24. MRFOTOS

    MRFOTOS Karting

    May 26, 2003
    232
    Maui, Hi
    my 80 gtsi ( no flap) is the same, slow fill, always clicking off, but by pulling out the nozzlel out a few inches from a fully inserted position lets it fill up at a normal rate.
     

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