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308 Carbs are Coughing

Discussion in 'Technical Q&A' started by Sledge4.2, Jun 14, 2009.

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  1. Sledge4.2

    Sledge4.2 F1 Rookie

    Oct 19, 2007
    4,789
    Marin
    Full Name:
    Geno
    #1 Sledge4.2, Jun 14, 2009
    79 308. I just finished gutting my airbox, and took the car for a drive, and heard very intermittent coughing from one of the carbs (i can hear the carbs alot more without the sound deadening). This morning, pulled the airbox off, and started the car cold, and all four carbs were coughing/backfiring. however, after letting the car warm up, after 5 minutes, they stopped coughing (except one very intermittently). The car has always started a little rough, but then runs fine when warm. Any thoughts?
     
  2. thecarreaper

    thecarreaper F1 World Champ
    Silver Subscribed

    Sep 30, 2003
    18,130
    Savannah
    #2 thecarreaper, Jun 14, 2009
    some coughing and spitting seems normal if the ignition and carbs have not been synced in some time. otherwise i would look into the overall tune of the engine. check for vacuum leaks first.
     

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