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Wood Splitter vacuum fuel pump issue

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HamSamick
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2018/11/21 07:14:55 (permalink)
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Wood Splitter vacuum fuel pump issue

I have a Yard Machines wood splitter, about 15 years old with a 8hp B&S.
We don't use it very often, but it seems like when we do, the vacuum fuel pump leaks from the diaphragm, requiring replacement. It seems like every other year or so it has been replaced, and needs replacement now.
 
My Question: The bottom of the Fuel tank is almost the same height as the carburetor. Is it possible i could raise the tank a few inches and eliminate the fuel pump? From what i understand, that's the reason for a vacuum pump....the fuel tank not being above the carburetor. 
It can be easily and safely raised, i can provide pictures if needed. 
 
The engine seems good, lots of compression, possibly too much causing issues for the pump. Or ....i've also heard fuel with ethanol in it eats at those diagrams, maybe that's why they keep going on me.
 
Just looking for an easy fix, i don't want to get into compression testing or anything too involved.
Replacing the pump is easy, but around $20 every time.

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    AVB
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    Re: Wood Splitter vacuum fuel pump issue 2018/11/21 07:50:00 (permalink)
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    In order to change from a fuel pump to gravity fed not requires raising the tank but also changing or modifying the carburetor if it is a float valve type as pressure valve system will not operate properly under just under gravity feed. Depending the 8 hp setup it might be possible to simply change out the needle valve and its seat.
     
    Probably most cost effective to just change the fuel pump as needed.
    HamSamick
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    Re: Wood Splitter vacuum fuel pump issue 2018/11/21 10:04:30 (permalink)
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    Ahhh bummer.
    I was thinking of trying it, just to see if and how it would run, but i'll just go get another pump.
    Thanks for the quick help!
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