Fuel Filter Sucked Dry -

[sanderson34]

So I am having a bit of a problem -

Whenever I run my LoBoy 185, the fuel filter runs dry and the machine will stop running.

I have pulled the carburetor, cleaned and replaced the gaskets. I replaced the old in line fuel filter with a brand new one. I have tried to run the machine with the fuel cap both on and off.

Does anyone have any suggestions for why this might be happening?

Thanks All,
seve

[John *.?-!.* cub owner]

I would be looking at debris in gas tank blocking fuel flow, or vent in gas cap plugged.

[Larry B]

You possibly may be using the wrong filter. Paper filters designed for systems using a fuel pump can stop passing fuel in a gravity system due to capillary effect. Sometimes they will work ok with a full tank and stop working somewhere around half a tank. Most automotive filters are like this. Most lawn mower filters usually work ok with gravity systems. The red disc type Briggs&Stratton fuel filter is designed for gravity systems with 150 micron filter element. The white one is for systems with fuel pumps and is 75 microns. Try a red Briggs filter and see what happens.

[sanderson34]

Hey, thanks all!

This is the new fuel filter I have installed....

http://hamiltonbobs.com/cart/product/in ... lo-boy-mm6

Let me know what ya' think.

Thanks

[Larry B]

Not sure there are no specs on micron size. Quick test. Pull line off of carb and see if fuel flows. Let it run for a couple mins in a container . If fuel stops flowing pull off filter and check flow. If it barely flows or starts then slows to nothing with the filter and flow good with filter removed then wrong filter. I see this all the time on riding mowers where folks replace fuel filter on gravity feed systems with paper element filters.