[Question] 7.4l mpi vapor lock issue?
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7.4l mpi vapor lock issue?

  1. #1
    the real honcho bagged97taco's Avatar
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    Default 7.4l mpi vapor lock issue?

    We have a 91 cole superhawk with a 7.4l mpi engine that was swapped in by teague marine. Having some issues with what ive read on previous threads being vapor lock. Boat will run for awhile and then just die. Will crank and crank and not refire for awhile. It has the cool fuel system already installed. Has a backwards little scoop on engine hatch. I run the blower all the time. Has the old style flip up fuel fills that are vented. Ive tried to idle around the lake with engine hatch open to vent before i stop at the sand bar etc. This past weekend was cool outside one day (ran fine) next day was a little warmer out, ran fine then died. Stuck in middle of lake for 45 minutes opened hatched tried using magnets on fuel lines. Finally started but started back firing really bad. Then off to the races again with no problems. What else can i do. Its frustrating cause its hit or miss. Any ideas or help would be great. Any more info needed i will find out. Thanks paul

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    Senior Member SHAWN DAVIS's Avatar
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    they have a vapor lock retrofit kit, pump, lines brackets etc to fix the problem. Kinda expensive around 350.00 I think.


    862264A4 is the part number
    Last edited by SHAWN DAVIS; 10-16-2012 at 10:03 AM.

  4. #3
    the real honcho bagged97taco's Avatar
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    Quote Originally Posted by SHAWN DAVIS View Post
    they have a vapor lock retrofit kit, pump, lines brackets etc to fix the problem. Kinda expensive around 350.00 I think.


    862264A4 is the part number
    Thanks ill look into it. Price doesnt matter. Just want a worry free cruiser.

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