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Kohler Engine ID for Gas Powered Dual Stage Compressor Project

Don-F

Well-known member
Joined
Oct 4, 2014
Messages
98
Location
Oregon
I have a friend that is young and starting out in the excavation business. He has been trying to use a construction air compressor, the type that framers haul around to power air nailers for heavy equipment maintenance. Anyway like most people, things are tight money wise, he cant buy new and what was in the $1500 range was briggs powered and not really industrial quality. This dual stage, gas powered compressor that needs work popped up for $300. The gas power is actually a plus at this point as he stores most of his equipment in an old barn with minimal electricity. It has no fuel system but I was able to get it to pop and sputter with some old gas the seller had in a squirt bottle, but it never really ran. The engine has electric start and turns over well. The belt was loose, but I can turn over the compressor part by hand and no strange noises or anything. I know it's a gamble, but I am hoping to get it going without much problem. Anyone know how to ID the older Kohler engines? I found a carburetor number, but there seems to be a glut of china made replacement carburetors rather than a rebuild kit for the original. Not sure if this is the direction to go or not. The plan is to find some type of fuel tank, clean or replace the carb and change the oil in both the engine and compressor and see what we purchased. The seller replaced the spark plug with something "close," so I was hoping to ID the engine to look up the proper spark plug also. I was thinking if I could ID the engine, that there may be a factory gas tank that would bolt on to the engine like the smaller engines on rototillers etc.

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theoldwizard1

Well-known member
Joined
Feb 22, 2011
Messages
43,222
Location
SE MI
I am pretty sure that is a Kohler "K Series" engine. Very common in the 60s and 70s and maybe even 80s. It is considered a "premium" engine, sort of the Honda of the day.

It came in multiple sizes from 8 HP up to 18-20 HP. Besides "industrial" uses, it was on Wheel Horse (and likely other) garden tractors. There is lots of info out there and parts are still available.

Identifying 1 Cylinder Kohler K-Series Engine Blocks
 
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Boilerhouse

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Joined
Mar 20, 2012
Messages
1,321
Location
Muskoka
I own a 10 HP K241, manufactured in 1968. Very heavily built. It weighs 125 pounds. Originally on a lawn tractor, I recently repurposed it to a log splitter. I rebuilt it around 2010, and it was relatively cheap and easy. Parts were easy to source. Maybe it would have been equal money to buy a new Predator type engine, but it definitely would not have been nearly as well made. Would not surprise me if this Kohler could last another 50 years.
 
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Don-F

Well-known member
Joined
Oct 4, 2014
Messages
98
Location
Oregon
Thank you for the information. Yes, it looks like it is a K series. I did find some tanks from the kohler tractors on eBay, but they are either very expensive or rusty trash. I think I can get a 2 gallon universal tank and mount it so it gravity feeds so i don't have to refurbish a gas tank also.
 
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Don-F

Well-known member
Joined
Oct 4, 2014
Messages
98
Location
Oregon
It ended up being a 14hp K series engine. There were a few things wrong. Someone had part of the ignition system hooked up backward. The carb rebuild, new china fuel tank and a new fuel pump took care of the rest.
 
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