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pcm 302 carburetor questions!

Discussion in 'Carver Yacht' started by peaderc, Jul 19, 2014.

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  1. peaderc, Jul 19, 2014
    #1
    peaderc

    peaderc New Member

    Joined:
    Jul 19, 2014
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    Location:
    Coastal Alabama
    Hello!
    I recently purchased an 82 Carver 3007 with twin 302s topped with Holley 4brls. The port motor runs like a champ but the stbd had been running very rich. The previous owner had the carb rebuilt but it still is having issues. The plugs are as black as night and need to be replaced.

    Both motors fire up just fine but the stbd motor will inevitably die after maybe 10 minutes at idle then will not restart until it's cooled.

    I spoke with an anti-holley individual and was told simply to send both Holley's back to Hades where they came from and get edlebrocks. I have heard of this happening on these boats but I was hoping to get some input or suggestions from the Carver community!

    Many thanks!
  2. Capt J, Jul 20, 2014
    #2
    Capt J

    Capt J Senior Member

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    Jul 11, 2005
    Messages:
    14,517
    Location:
    Fort Lauderdale
    There is nothing wrong with Holley carberators. First check your idle jet adjustment. Note where it is now, screw it in all of the way till it bottoms out and unscrew it 1- 1.5 turns and see how the boat idles. if that's not it, it sounds like your float level is too high in the carberator. It's been years since I've messed with carberators.....but it sounds like a simple issue within the carberator.
  3. Capt Ralph, Jul 20, 2014
    #3
    Capt Ralph

    Capt Ralph Senior Member

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    If that IS a carb issue, your choke is assembled wrong. Is it closed when it dies?
    If open when it dies; replace, coil, rotor & ballast resistor.
  4. peaderc, Jul 20, 2014
    #4
    peaderc

    peaderc New Member

    Joined:
    Jul 19, 2014
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    2
    Location:
    Coastal Alabama
    Thanks for the response and info! I'll play with it some more and see what I come up with. Seems hard to believe a carb can just go bad.
  5. Capt Ralph, Jul 20, 2014
    #5
    Capt Ralph

    Capt Ralph Senior Member

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    Sep 8, 2004
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    13,389
    Location:
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    In today's marine environment, yesterday's fuel, year's old fuel cell technology, last decade's filter technology and real (REAL) old carb technology, it's amazing they work as well as they do.

    And then, an old spinning rotor distributor.

    Every time I'm forced to work on a gas engine, I have to take my shoes off. Helps me feel as one with Fred Flintstone...