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308 Smog Pump Question

Discussion in '308/328' started by copterjon, Jul 3, 2008.

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  1. copterjon

    copterjon Formula 3
    Silver Subscribed

    Nov 11, 2005
    1,545
    Mesa, Az.
    #1 copterjon, Jul 3, 2008
    A friend of mine just called me while on his way to Flagstaff to participate in 4th of July parade tomorrow with his 81 308. His smog pump belt just broke and he is wondering if he should continue on with his plans for the parade. Can anything bad happen driving without the pump operational?
     
  2. jbrosseau

    jbrosseau Karting

    Nov 26, 2003
    182
    kirkland,wa
    Full Name:
    joe brosseau
    #2 jbrosseau, Jul 3, 2008
    i would imagine that the air pumps have to help with high exhaust temps and keeping the cats from becoming nuclear.
     
  3. ClydeM

    ClydeM F1 World Champ
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    Clyde E. McMurdy
    #3 ClydeM, Jul 4, 2008
    I ran mine for a week while a replacement was ordered.
    My understanding is the tips in the exhaust will not be happy and should be removed with the threads capped for long term disconnection. But for such a short term thing as a parade? I wouldn't suspect any issues.
     
  4. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    Jan 11, 2001
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    Steve Magnusson
    #4 Steve Magnusson, Jul 4, 2008
    Ditto -- no problem for a day or two with the air pump belt off (and easy use). Actually the cats will run a little cooler and more inefficiently than normal because there won't be any extra oxygen present to react with the HC/CO coming out of the engine. Long-term, this would be bad for the cats and might result in permanent fouling (and damage to the air injection nozzles that Clyde mentioned).
     
  5. copterjon

    copterjon Formula 3
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    Nov 11, 2005
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    Mesa, Az.
    #5 copterjon, Jul 4, 2008
    Thanks guys, I know he was pretty worried about damaging something permanently...like his wallet:)
     
  6. ClydeM

    ClydeM F1 World Champ
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    #6 ClydeM, Jul 4, 2008
    Last edited: Jul 4, 2008
    Well he owns a Ferrari. Damage to the wallet is a given.

    Oh, and make sure he gets a picture taken of the home coming queen perched in his car. And post it :)
     
  7. ollie

    ollie Karting

    Oct 7, 2001
    165
    San Juan Capistrano
    Full Name:
    Oliver B. Cagle
    #7 ollie, Jul 4, 2008
    It seems you can totally disconnect this thing if you want with no harm but maybe fowl!!!!!!!!!!!!!!!!!!
     

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