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kohler gen 7.3 not getting fuel at the carb?

Discussion in 'Carver Yacht' started by adambomb, Aug 10, 2010.

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  1. adambomb, Aug 10, 2010
    #1
    adambomb

    adambomb Member

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    I had my gen going and she stopped after about 5hrs of running I checked by putting quickstart in the carb it stays running ,I checked voltage at the fuelpump and its there when you try to start,bowl is empty ,shouldnt it pump out fast from line when pump activated ? What could be my problem what goes on these gens would water seperator be problem or would just have water in fuel not no flow? Thankyou
  2. ScotL, Aug 10, 2010
    #2
    ScotL

    ScotL Senior Member

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    Possibly a plugged line or bad filter?
  3. adambomb, Aug 10, 2010
    #3
    adambomb

    adambomb Member

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    I see a water seperator but no filterfor fuel another thing I was thinking was I just got the boat and it has a quarter tank of gas or lower is it possible that it grabs the fuel from a higher level in the tank
  4. Capt J, Aug 10, 2010
    #4
    Capt J

    Capt J Senior Member

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    The fuel water seperator is also a filter. Change that. Also, generators always pull fuel from a higher level in the fuel tank and are the first to shut off when the fuel level is low. It is entirely possible that the fuel level is too low in the tanks.
  5. ScotL, Aug 10, 2010
    #5
    ScotL

    ScotL Senior Member

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    Let us know what happens after you do this. I tried sending this on my phone, only it did not go through.
  6. Fireman431, Aug 11, 2010
    #6
    Fireman431

    Fireman431 Senior Member

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    I have the same genny on my Carver. As stated, swap out the fuel filter/water separator and put fuel in the tank.

    After, you can remove the fuel line going into the carb while turning it over to see if fuel comes out the line (keep a jar or something for it to go into).

    If you spin the genny over for longer than 45-60 seconds, shut off the raw water intake until it finally fires up. If you don't, it can allow water to get sucked back into the engine and do damage.
  7. Capt J, Aug 11, 2010
    #7
    Capt J

    Capt J Senior Member

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    I've never heard of water being sucked back in. BUT, shutting off the raw water intake and cranking the generator for more then a few seconds will fry the impellor for sure
  8. Fireman431, Aug 12, 2010
    #8
    Fireman431

    Fireman431 Senior Member

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    Actually, it won't as long as there is currently water in the impeller housing.

    I wouldn't make this up. This is from page 24 of the Kohler operator's manual:

    "Do not crank the engine continuously for more than 7
    seconds at a time. Allow a 5-second period between
    starting attempts if the engine does not start. If the
    engine fails to start after three attempts, contact an
    authorized Kohler dealer/distributor for repair. Failure to
    follow these guidelines may result in burn-out of the
    starter motor from overheating.
    If the engine fails to start after the first attempt, close the
    seacock before a second start-up attempt. This action
    will help prevent seawater from entering the engine
    cylinders through the exhaust valve. Once the engine
    starts, the seacock must be re-opened to allow passage
    of cooling water    ."

    Here is the link to the SERVICE manual - http://www.marinegenerators.us/kohler/lit/TP5986.PDF
    Here is the link to the OWNERS manual - http://dl.owneriq.net/a/a8fdd3f3-7368-43a4-a491-42a86ec68384.pdf
  9. adambomb, Aug 16, 2010
    #9
    adambomb

    adambomb Member

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    Filled tanks up and primed fuel line atnd started right up
  10. Fireman431, Aug 16, 2010
    #10
    Fireman431

    Fireman431 Senior Member

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    Glad to hear that low fuel is all it was.

    Now go get out on the water!