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Matt Young

C121 fuel pump

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Matt Young

I remember someone mentioning a guy that makes rebuild kits for the original aluminum fuel pump on Kohler 12 hp k301 engine, I can’t seem to find the thread. Can anyone help me on this? I would greatly appreciate it 

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oldredrider

Don't want to scare anyone, but I had a bad experience with a mechanical fuel pump on a C-141. The fuel pump arm broke off and took out the rod, messed up the crank pin and possibly the governor gear.

Engine probably had 1000 hours since a rebuild and I think the fuel pump was original to the motor so not sure how many hours on it.

As an engine rebuilder, I see this incident as something to be aware of as these old Kohlers, while are rock solid, age has a way of diminishing effectiveness of certain components. 

Since this experience,  I have gone to electric fuel pumps to alleviate that problem in the future

An electric fuel pump has a few advantages over the mechanical type and are a LOT cheaper than a rebuild.

Just my opinion garnered from experience.

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roadapples

@oldredrider  what pump do you use.... Thanks

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oldredrider

The Facet pump. The cheap Chinese pumps sold on Ebay are junk.

Napa carries the Facet line. About $40 and worth every penny.

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