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GM B-Body Forum, 77-79 Caprice/Impala Forum

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    Fuel delivery

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    GEOLANG1
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    Join date : 2013-04-16

    Fuel delivery

    Post  GEOLANG1 on Sun Jul 24, 2016 10:51 pm

    Forum,
    I have an issue with my 79 Caprice. When it sit over night or for a few hours, it won't start without priming the carburetor. I've changed the carb, fuel pump and fuel lines. I don't see any leaks anywhere nor do I smell fuel. Once I do get it started, it runs fine but after it sits for a long period of time, it does the same thing. Don't know what else to do
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    terry cronk
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    Join date : 2015-08-19
    Age : 69
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    Re: Fuel delivery

    Post  terry cronk on Mon Jul 25, 2016 1:59 pm

    Make sure the choke is working.
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    HeavyChevy77
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    Re: Fuel delivery

    Post  HeavyChevy77 on Mon Jul 25, 2016 5:32 pm

    Probably heat soak dam ethanol fuels are more volatile and expand more than regular  fuel pushing fuel past the idle screw eventually flooding it hence hard start

    Use a 1" plastic spacer or 1/2" wood spacer too keep fuel cooler one been meaning to try that startron fuel additive but haven't yet heard it works good

      Current date/time is Thu Apr 27, 2017 4:41 pm