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Garden Tractors Discussion Forum

Re: ID Kohler Engine

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Bob

04-03-2014 09:05:25
64.255.159.192



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Well, as I"m sure you know, some of the engines had the model # cast into the block on the PTO end, in the upper clutch mounting bolt area, K301, K321, etc..

I believe 9 head bolts would indicate K241, K301, or K321.

If you can measure the stroke with a straw or wire threaded though the sparkplug hole, K241 has a 2.875" stroke, K301 and K321 have a 3.25" stroke.




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joe fabregas

04-03-2014 09:43:54
12.75.111.56



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 Re: ID Kohler Engine in reply to Bob, 04-03-2014 09:05:25  
Did not know about cast numbers. Can not find any unless it's behind the drive belt shroud. WH 1067 should have a K241 and this engine overhangs the frame where the original was bolted. Probably remain a mystery of life. Thanks!
joe fabregas



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Bob

04-03-2014 09:47:10
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 Re: ID Kohler Engine in reply to joe fabregas, 04-03-2014 09:43:54  
I'm NOT a WH guy, but could this be an instance where a Kohler engine with the narrow oil pan/block was replaced with the wider, flanged block and wide oil pan?



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Tom Arnold

04-03-2014 20:28:12
174.95.11.197



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 Re: ID Kohler Engine in reply to Bob, 04-03-2014 09:47:10  
The Kohler 10 horse and 12 horse engines use the same crankshaft and rod..... which means the stroke is the same. What differs is the size of the bore.

Kohler decided to cast blocks with extra thick cylinder walls. Some blocks were then bored for the ten horse pistons while other blocks were bored for the 12 horse pistons. The only way to figure out the HP of your engine is to remove the head..... which is not a big deal....and should be done anyway periodically to remove carbon.... and measure the bore diameter.

As noted, Kohler also made many different oil pans to bolt up to their basic engine blocks. All engines came with a SPEC or Specification number noted on the ID tag. Manufacturers could SPEC which oil pan they wanted, which alternator coil amperage, whether they wanted a starter/generator or an alternator/starter and if the engine was to be on gasoline or propane.

If the oil pan obviously does not fit the frame of your tractor then it is equally obvious that the engine has an entirely different SPEC and it came from a completely different tractor. If it works, then it does not matter UNLESS..... you intend to conduct a proper restoration. At that point, you need to seek out an engine from the same model tractor as you have.

Checking the crank output side of the block for the identifying mark in the casting means nothing because many of the K-241 blocks became K-301 blocks by way of the boring bar at the time of manufacture.

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