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  • 1 Post By Cap'n Ray
  • 2 Post By TimG
  • 2 Post By BlackandBlue88

No fuel to the carb. Mercruiser 140hp I/O

Gasoline

Section - Boat quit on me and won't start. It will fire up if I dump gas ...
   
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  1. #1
    Status : Offline
    Member Since : Sep 2017
    Home Port : Columbus, Ohio area
    1972 Lyman Sebring
    Posts : 7

    Default No fuel to the carb. Mercruiser 140hp I/O

    Boat quit on me and won't start. It will fire up if I dump gas in the carb but dies as soon as it runs the gas out of the bowl. I have ordered a new fuel line. Looking for recommendations.


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  2. #2
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    Cap'n Ray's Avatar
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    Member Since : Sep 2011
    Home Port : SW Florida
    Boat's Name : "Curtains" (to be changed in the near future)
    1964 Chris Craft Roamer Commodore
    Posts : 1,805

    Default

    Starting at the fuel tank- pick up screen clogged, anti-siphon valve bad, poor connection between rubber fuel line and fuel tank (if it draws air, you won't get any fuel), in-line fuel filter, pump screen, fuel pump, carb inlet fuel filter (if installed), stuck float/ needle valve. Pick one and start eliminating. Your boat layout will determine which is easiest to check- but that's where I'd start.
    BlackandBlue88 likes this.

  3. #3
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    TimG's Avatar
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    Member Since : Dec 2009
    Home Port : Olive Branch, MS
    Boat's Name : "WooHoo"
    1986 Cruisers Elegante 297
    Posts : 2,992

    Default

    What Ray said....

    Can't remember if that motor has a relay to shut off fuel if you don't have oil pressure, but while looking at those items Ray mentioned, you could start at the carb and work your way toward the tank, pull hose at carb (have fire extinguisher handy and a bucket to catch fuel), crank engine and see what you get.
    Cap'n Ray and BlackandBlue88 like this.
    ~ on the hook ~

  4. #4
    Status : Offline
    Member Since : Sep 2017
    Home Port : Columbus, Ohio area
    1972 Lyman Sebring
    Posts : 7

    Default

    Thanks for the suggestions! I replaced one of the fuel lines. I think it had a tiny leak that sucked in air when the tank was low. Back up and running again!


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    TimG and Cap'n Ray like this.

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