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Thread: engine will not stay running

  1. #1

    Default engine will not stay running

    My engine on my kaiser will not stay running and when i give it gas it dies.
    It will idle for about 30 seconds and die.

  2. #2
    Join Date
    Dec 2006
    Location
    Springdale, Arkansas
    Posts
    1,431

    Default

    Sounds like crap in the fuel line/filter. When you hear hoofbeats, think horses not zebra's.

  3. #3

    Default

    Quote Originally Posted by fng View Post
    Sounds like crap in the fuel line/filter. When you hear hoofbeats, think horses not zebra's.
    Thats what i thought at first so now I am pulling fuel strait from a 5 gallon gas tank and its still doing it.

  4. #4

    Default

    Sounds like an out of tune or plugged carburetor. Is this vehicle new to you, or has it been sitting for a long time, or was it running just fine one day and then all of a sudden started not running right?
    68 M-715
    67 M-725

  5. #5

    Default

    Quote Originally Posted by rpgdeity View Post
    Sounds like an out of tune or plugged carburetor. Is this vehicle new to you, or has it been sitting for a long time, or was it running just fine one day and then all of a sudden started not running right?
    It has been sitting for a while but it did run ok for a couple of days and then quit so i don't know were to start

  6. #6
    Join Date
    Mar 2004
    Location
    northern Arizona
    Posts
    1,025

    Default

    Same issue on my new acquisition - mine turned out to be a stuck needle valve in the carb.

    Pull the carb off - unscrew the (11/16ths) cap on the end by the fuel inlet and check the needle valve to make sure it moves. I used a bunch of carb cleaner on mine.

    If the valve is sticking - it won't let fuel into the bowl.
    67 M725 67 M715 68 M715

  7. #7
    Join Date
    Dec 2006
    Location
    St. Louis, Mo.
    Posts
    338

    Default

    Comps probably right, carb. Its def. fuel. I blew shop air thru my fuel lines reverse SLOWLY, theres a sock filter in the tank. CHECK the rubber lines at the tank and drivers side frame, there rotten.

  8. #8
    Join Date
    Jan 2007
    Location
    Fort Smith, Arkansas
    Posts
    911

    Default

    The dieing when you open the throttle during the 30 seconds of run time is prolly due to the same issue of not enough fuel. Open throttle equal lots more air. w/o the increase in fuel, engine dies.

  9. #9
    Join Date
    Jan 2007
    Location
    Georgetown, CA
    Posts
    418

    Default

    Does it die all by itself, or only when you open the throttle? If it is when you open the throttle, you could also have an open "ported" vacuum leak, . . only draws vacuum when you open the throttle, . then your basic vacuum leak, . .too much air.. . . .just a thought. . .good luck!

  10. #10
    Join Date
    Dec 2003
    Location
    Giddings, Texas
    Posts
    7,729

    Default

    I was thinking accelerator pump too. When you pour gas into it, are you pouring it down the venturi or into the float bowl? Venturi only will just let it chug along and die. Float bowl will let it wind up a little before it runs out.
    Remember if you didn't build it you can't call it yours.

    6.2 powered M715, 5 M1009's, M416, 2 M101's, 2 M105's, 3 M35's, M1007 6.5 turbo Suburban project called Cowdog.

    https://www.youtube.com/channel/UCCz...HGkBCfhXZ5iuaw

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