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Starting Issues/Possible flooding

Discussion in 'Flat Fender Tech' started by bnorth10, Aug 13, 2007.

  1. Aug 13, 2007
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    I have an L -head 51 3A with a motor from a generator. I drove my Jeep into the garage to work on the suspension and replace the leaf springs. I used an impact so I could have vibrated something loose (not sure) but afterwards would not start. I put all new plugs and a new coil in, bypassed the ignition switch to make sure it wasnt causing the problem, made sure no loose wires ect. I then could smell raw fuel and assumed it was flooded. The carb is a carter in good condition. I think it was flooded the first night. I pulled the carb off, cleaned and dumped out fuel bowl and ran a fan all night down the manifold. Still no luck. Tried starting agian a day later by holding throttle to floor. I can still smell gas but cant figure out how or what to do.

    Any Suggestions??
     
  2. Aug 14, 2007
    junkfood

    junkfood Member

    Casa Grande,Az.
    Joined:
    Oct 23, 2005
    Messages:
    222
    Just a thought but have you checked to make sure your points didn't closed up?
    On a different thought, what did you have to do to mount the generator motor up? I have a chance to pick up one but don't know what it will take to install it in my 2a.
    Keith
     
    Last edited: Aug 14, 2007
  3. Aug 14, 2007
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    Go back to the basics. Pull a plug, and ground it to the block. Have a friend turn the ignition on and crank it over while looking for a fat blue spark. if there is none, find out why.

    Plugs foul easily if the engine isn't in good tune, and even a "good looking" plug can refuse to fire the engine. Change the plugs, they're cheap.

    Check for ~8-9v VDC at the (+) side of the coil when the ignition is on. if not, why not?

    Check the point gap, and that the points aren't pitted. if they are, change them out, along with the condensor. Tune-up parts are cheap.

    Do you have gas in the tank? Are you getting fuel to the carb? Sounds like you are, but it's worth looking into..
     
  4. Aug 14, 2007
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    I think that my main problem is that it is excessively flooded. When I pulled the carb off, there was raw fuel in the manifold. I put a fan on it an ran it for a day or two and didnt see any more in the intake but I can smell it. What should I do if it is in the cylinders???
     
  5. Aug 15, 2007
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    Sorry for the late reply Keith.

    About the Generator Motor:

    When I bought this particular Jeep it had already been done but from looking at it, the motor mounts are about a half a mount off so the PO fabbed a different mount. The manifold sets higher which he did nothing about and just left the hood off (Short-cutter). It sets about an inch taller so I was contemplating a small body lift or changing out the manifold. There was no oil bath breather either and so I run a paper breather which creates even more of a hood clearance issue. Other than that it looks like it would just bolt right into place.

    Bryan
     
  6. Aug 15, 2007
    OzFin

    OzFin Vintage Jeep Guy

    Michigan
    Joined:
    Jul 16, 2007
    Messages:
    946
    bnorth10 , I would follow the advice given by junkfood & w3srl . I believe that if you have excessively flooded cylinders you will know by the the smell and/or splatter discharge when you check the sparkplug as previously described,that said I would try the ignition test somewhat away from the plug hole so as not to create the "4th of july effect "should the plug ignite the atomized fuel as it may come out of an excessively flooded cylinder spark plug hole during the test. If it indeed did flood out to that extent, once you locate the problem and correct it you may want to change the oil so the gas (solvent effect) does'nt pollute the oil in the crankcase. You need fuel (got it), oxygen , compression and ingnition all in the proper timing to make combustion. Being that it ran before the the impact wrench was used, maybe check the carburater fuel float bowl needle/seat (flooding effect if it does'nt work properly) if you indeed do have spark. It would seem unlikely that much else could / would have changed like timing & compression , from just jostiling it around with vibration from an impact wrench...but then again.....? Check it out and if it is still a mystery let us know what other clues (symptoms) you come up with and or what you rule out by your test's and investigation.
     
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