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Hit & Miss Gas Engine Discussion

ESSEX Fuel Mixing Valve Help Needed


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  #1  
Old 09-29-2009, 05:32:45 PM
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Default ESSEX Fuel Mixing Valve Help Needed

The valve in the bronze body that gets sucked up on the intake stroke doesn't seat tight enough to create the vacuum to pull the fuel from the tank thru the check valve and into the intake of the Mixing Valve. I dissasembled it and the seat and shaft are two separate pieces rather than one piece. Is this correct or did the Stem at one time break off the valve???? The unit has ESSEX stamped on the outside.

Where can one find mixing valves and or parts???

Thanks
Al
Smithtown, Long Island NY
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  #2  
Old 09-30-2009, 07:42:03 PM
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Joel Mosley Joel Mosley is offline
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Default Re: ESSEX Fuel Mixing Valve Help Needed

I believe that your carb is a gravity feed style. The base of the fuel tank should be even with the fuel inlet line of the carb. It is very similar to a Lunkenheimer carb. There is no need for a check valve in the fuel line as the valve inside the carb keeps the fuel from flowing continually into the carb. It lifts up on the intake stroke only to feed fuel to the engine. I don't have the answer about the check being one or two pieces.

What type of engine is it on and do you have any pictures of the carb. That will help others confirm or dispute my thoughts.

Joel

Last edited by Joel Mosley; 09-30-2009 at 07:45:08 PM. Reason: punctuation
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Old 10-01-2009, 09:31:54 AM
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Default Re: ESSEX Fuel Mixing Valve Help Needed

Hi Joel,

The engine is a Leader Field Force Pump Company 2HP hit & Miss that I just acquired and I am a newbie to the Hit & Miss world. Unfortunately I haven't figured out how to post pics on the site yet.

Actually, The fuel tank is cast iron and is below the Cylinder and Fuel Mixer. There is a check valve in the line from the tank that goes up to the Mixing valve. I guess this keeps the fuel in the line up to the Mixing valve. The the fuel mixer body has a valve with a spring on the stem that is drawn up when the exhaust valve is closed, and the piston is on the "intake" stroke. This causes a vacuum to the mixing valve which then rises up and draws the fuel from the fuel line.
There don't seem to be many Leader engines and they are apparently known to "run away" because the governer wasn't designed very well.

The Fuel Mixer has a separate valve and stem retained by a spring. The valve is not seating consistantly and not creating the vacuum to allow fuel into the Mixer. I'am wondering if the Stem & Valve were one piece originally and broke into 2 pieces. I am now thinking I will use JB Weld to make them one piece which may improve the valve "seating".

If you know of some one with a Leader / Field Force engine pls let me know.

Thanks

Anyway I can't start this
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Old 10-01-2009, 09:49:47 AM
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Default Re: ESSEX Fuel Mixing Valve Help Needed

i've got one of those mixers on a lennox and yes the part you are talking about is one peice. will try to get a photo if you need it.
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