I was given a 105 and an "extra" Kohler K-241. Thought I would rebuild and install. when I pulled the head the piston had a .030 stamp on it. So looks like its been repuilt 1 or 2 times before. Piston does show signs of "slap" so assume it needs bored etc. (Very little compression also)
Question: .030 is largest oversize listed, are there larger pistons available somewhere ? Is the block wore out ? Should I Just save usable parts and scrap the rest ? Thanks, Roger B.
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Kohler Engine ?
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rvbarkley
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Cub-Bud
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Paul B
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Make sure the piston skirt is not broken and creating the slap.
For the most part, .030 is the max bore. However, some K241, 10 hp blocks can be bored to the 12 hp K301 size (1/8"). Most used the same block casting, and if you look at the block behinf the PTO clutch you may see the #301 cast into the block. The K301 does have a 3/8" longer stroke, so I am not sure if the wrist pin is in the same location on the 10 and 12 hp pistons, but I believe you can bore and use the K301 piston and the K241 rod, but you should do some measuring of parts beforehand, to verify this.
For the most part, .030 is the max bore. However, some K241, 10 hp blocks can be bored to the 12 hp K301 size (1/8"). Most used the same block casting, and if you look at the block behinf the PTO clutch you may see the #301 cast into the block. The K301 does have a 3/8" longer stroke, so I am not sure if the wrist pin is in the same location on the 10 and 12 hp pistons, but I believe you can bore and use the K301 piston and the K241 rod, but you should do some measuring of parts beforehand, to verify this.
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Eugene
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K241
I would hone the cyinder wall then mic everything to see where I was at. You may be able to get by with a new piston - some where around $40.00.
As far as scraping the unused parts, I would keep everything. Kohler engine parts, blocks and cranks, are hard to come by and expensive.
Another opinion.
Eugene
As far as scraping the unused parts, I would keep everything. Kohler engine parts, blocks and cranks, are hard to come by and expensive.
Another opinion.
Eugene
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Eugene
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Couple more thoughts
Perhaps my spelling will be better this time - probably not.
1) Back in the old days we used to have pistons knurled (spelling) at the local machine shop. Knurling expanded the skirt.
2) You might check with Brian Miller's Garden Tractor Pulling Tips (that's a web site).
3) If there is enough meat left in the cylinder wall area you might be able to have the block machined and a dry sleeve inserted.
Love those Kohler engines.
Eugene
1) Back in the old days we used to have pistons knurled (spelling) at the local machine shop. Knurling expanded the skirt.
2) You might check with Brian Miller's Garden Tractor Pulling Tips (that's a web site).
3) If there is enough meat left in the cylinder wall area you might be able to have the block machined and a dry sleeve inserted.
Love those Kohler engines.
Eugene
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Jack fowler
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You can E-mail Brian Miller at PullingTractor@aol.com (web site)http://members.aol.com/pullingtractor/a1miller.htm and he can tell you everything you need to know about the Kohler K-241.If you need any machine work done on the engine, I would recommend him to do it.
Jack Fowler
Jack Fowler
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