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KingFisherWest

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Posts posted by KingFisherWest

  1. Well if vapor locking is related to engine heat it may not be it. I have had times where it has happened at the dock within minutes of first start up. I have actually had it happen to where i cant start the boat at all with out going through the pumping of the throttle and taking up to 30 min to get it started. Prior to last Aug. it always started right away. I know its not a vent problem thats #5 on my list of things checked.

    Thank you so much for your responses. Keep them coming

    Dave

  2. 1983 Penn Yan with a 3.8 GM V6 (OMC).

    Now keep in mind this problem comes and goes, thats whats baffeling. It happens when running fast and trolling. Your going along and without warning the motor idels down until it shuts down. Then it takes anywhere from 10-30 mins to get it to restart. During restart you have to pump the throttle (in nutral of coarse) back and forth like a mad man to get it to catch and to keep it running. Sometimes it back fires when trying to restart. Once it finally starts and will idle without pumping the throttel or stalling out, you have to let it rev any where from 2000-3000 rpm unti it finally smoothes out. Then it may run for an hour wth no problem or for even 8-16 hours of run time before it happens again. Just so you know the distributer was convertsd to solid state (no more points and condenser).

    I have had this problem since Aug '10 to present. This is very frustrating and keeps me from taking the boat places i know i dont have people i can call if i cant get it started.

    Things tried to fix this problem:

    1. Carb rebuilt

    2. Many types of fuel additives

    3. Fuel tank inspection for foreign particles and/or water

    4. Fuel filters changed numerous times (filter at carb and canister filter)

    5. Tank vent tubing checked for clog

    6. New fuel pump put on

    7. Checked to make sure fuel was going into carb from tank and during attempted start up while pumping throttel

    8. Cap, rotor, plugs and wires changed

    9. Checked to make sure spark was blue coming from coil

    10. Use only gas from name brand stations (no reservation gas)

    11. Use of ethenol eliminater with EVERY gallon of gas

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