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Fuel pump question... is this possible?

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  • Fuel pump question... is this possible?

    I woke up to another 6" of snow this morning. Of course the fuel pump is not pushing any fuel .
    The fuel line and filter is new and the tank was flushed in October- Its clean.

    Sooo I'm assuming the fuel pump died and will be replaceing it this afternoon. Since it is down, I decided to give it a once over and when I checked the oil, it was WAY over full.

    Since the pump is Vacuum operated is it possible that it pulled the fuel through a torn diaphram (HATE when that happens) and into the valve cover? I would like to avoid gas in my oil in the future...

    Next question- I read on here where someone is using an electric pump in their 6x6. I cant find that post now though. What is involved in doing that? what pump can be used? do you need a regulator? what psi (1?, 2?).

  • #2
    Hi Triple. Yes, I'd say your oil should reek of gas. (Not that gas is a bad smell) So I'm sure you are already changing it or did already. A hole in the diaphragm sure will "make oil". Hopefully it didn't run with the excess gas and wash the bearings. (And pretty sure you already know but DON'T run it with gas in the oil)
    Most people prefer the Vacuum pumps, they stop pumping when you stall, if you flip and cant get to the key, the engine will quickly stall, an electric pump will keep pumping and cause a fire hazard, a vacuum pump obviously will stop. Also you have to use a low pressure pump or you'll flood the living S#!# out of the engine. Jim's Max uses a Kawi off a Toro Zero Turn Mower, and the electric pump is off that mower too. A Landscape supply shop would probably be a good bet, but I'd rebuild or replace the vacuum pump
    Attex 295 Wild Wolf: sigpic My Runner
    Attex 252? Colt? Racer 80%: My Racer to be..... SOMEDAY
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    • #3
      Thanks! and yep all fixed- just put on another vacuum style pump. Good point about rolling it and such. Now, about the possibility of rebuilding the pump...

      Doesn't look rebuildable to me...its a Mikuni and the Brigs PN# is 808656, all plastic. Is there a rebuildable one out there for a 18HP Brigs Vanguard? It would be nice to have another one waiting in the garage for the next time.

      And I agree about the gas smell- "ode de' Octane" makes me crazy!!!

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