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Mondial spewing coolant

Discussion in 'Technical Q&A' started by surfdoc37, Jan 12, 2005.

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  1. surfdoc37

    surfdoc37 Karting

    Nov 19, 2004
    124
    St. Louis, MO
    Full Name:
    Mark M.
    #1 surfdoc37, Jan 12, 2005
    Newbie owner, left a trail of coolant and a puddle as I pulled into a gas station after having the car tuned and they topped off the antifreeze. Upon inspection there's a tube exiting the coolant reservoir which had been dumping a steady stream of coolant. I had never seen a overflow setup like that before, but shop said not to worry, they had just topped it off. So, next time I drove it same thing happened as I re-entered my driveway. And the next time I started her up the "add coolant" light went on, so I turned it back off.

    What's up? Normal behavior?
     
  2. snj5

    snj5 F1 World Champ

    Feb 22, 2003
    10,213
    San Antonio
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    Russ Turner
    #2 snj5, Jan 12, 2005
    Perhaps normal as the levels settle, but also can be due to air in the system at the refill. To "burp" the system, there is an air release bolt on top of the thermostat housing and radiator.
    Good luck
    rt
     
  3. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
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    #3 f355spider, Jan 12, 2005
    Cold, the max fill level is around 6cm from the filler next, on most of the 308.328,Mondial series. I would be tempted to leave it alone...and see if it finds it's own equilibrium. You might also check it cold.
     
  4. sjmst

    sjmst F1 Veteran
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    Jul 31, 2003
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    #4 sjmst, Jan 12, 2005
    Mine does that all the time.
     
  5. GaryReed

    GaryReed F1 Rookie

    Feb 9, 2002
    3,127
    Seattle
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    Gary
    #5 GaryReed, Jan 12, 2005
    If your expansion tank "pressure cap" is old and loosing tension, that can cause excess "spewing" of coolant too.

    My previous 308QV had this problem once and a new cap cured it.
     
  6. MondialTCab

    MondialTCab Formula 3

    Sep 5, 2001
    1,020
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    John Michael Gross
    #6 MondialTCab, Jan 12, 2005
    All advice good, but also make sure your fans are working. If the car is not cooling itself down, you will blow out at the expansion tank.
     
  7. Birdman

    Birdman F1 Veteran

    Jun 20, 2003
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    THE Birdman
    #7 Birdman, Jan 12, 2005
    1. Burp the system
    2. Check the level
    3. Make sure the fans are coming on when it gets hot. If they don't, it will spew coolant. This is important that they come on.

    Birdman
     
  8. senna21

    senna21 F1 Rookie

    Jul 2, 2004
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    Charles W
    #8 senna21, Jan 12, 2005
    Or a head gasket if it overheats...
     
  9. Ed P.

    Ed P. Formula 3

    Dec 28, 2002
    2,177
    Long Island
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    #9 Ed P., Jan 12, 2005
    Sam uses the spilled antifreeze trail as a guide to find his way home... :)
     
  10. Jdubbya

    Jdubbya The $10 Trillion Man
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    #10 Jdubbya, Jan 12, 2005
  11. f355spider

    f355spider F1 World Champ
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    #11 f355spider, Jan 12, 2005
    Excellent reminder! Old caps were .9 bar, new are now 1.1 bar.

    Dave
     
  12. Spasso

    Spasso F1 World Champ

    Feb 16, 2003
    14,656
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    Han Solo
    #12 Spasso, Jan 12, 2005
    I installed a "surge" tank in addition to the factory "header"
    tank on my '78. There is a difference and the function is different between the two.

    By adding the surge tank I converted my cooling system from an open system to a closed system. I rarely see spillage except the first time I shut it off after topping off and I rarely have to bleed air from the system.
     
  13. Chiaroman

    Chiaroman Formula 3
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    Apr 21, 2004
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    #13 Chiaroman, Jan 12, 2005
    I had the same problem and did all the things mentioned except the expansion tank and never had the problem again.
     

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