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Reload this Page K241 rebuild help needed
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  #21  
Old 02-15-2014, 08:00 PM
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Jeff in Pa Jeff in Pa is offline
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Originally Posted by Pswan View Post
I have seen mention an 0.020 under connecting rod for a k241 but can not find one for sale. Kohler, stens, rotary or ....? Does anyone know who makes an 0.020 under rod? Thank you
Pete
http://www.ebay.com/itm/020-KOHLER-C...item1c3505504d

No idea if it's a good price or not. I have purchased items from the seller before without problem.
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  #22  
Old 02-15-2014, 08:03 PM
J-Mech J-Mech is offline
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You really need to check this guy out.....
He has the rod you need. Call him. You DO NOT have to buy through E-Bay. He has a store.

http://stores.ebay.com/The-Mans-One-...=p4634.c0.m322
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  #23  
Old 02-15-2014, 08:09 PM
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Jeff in Pa Jeff in Pa is offline
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You really need to check this guy out.....
He has the rod you need. Call him. You DO NOT have to buy through E-Bay. He has a store.

http://stores.ebay.com/The-Mans-One-...=p4634.c0.m322
Same guy I posted ( just so the poster doesn't think he has two places to check out )
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  #24  
Old 02-15-2014, 08:14 PM
J-Mech J-Mech is offline
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Originally Posted by Jeff in Pa View Post
Same guy I posted ( just so the poster doesn't think he has two places to check out )
Sorry Jeff, we were posting at the same time!! LOL, I guess "great minds think alike"!!!
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  #25  
Old 02-15-2014, 08:16 PM
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Jeff in Pa Jeff in Pa is offline
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Sorry Jeff, we were posting at the same time!! LOL, I guess "great minds think alike"!!!
No problem, as long as he gets help with his K241, it's all good
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  #26  
Old 02-15-2014, 08:43 PM
Pswan Pswan is offline
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Great info everyone. Thank you! Waiting to hear from the machine shop for what I need. Thought I would do a little research before hand.
Pete
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  #27  
Old 03-02-2014, 10:40 AM
Pswan Pswan is offline
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Well the machinist called and the block is not cleaned up at 30 over. To sleeve will cost $150. Looking into putting a k301 piston into it. Has anyone here done that? I have seen mention of making a destroked k301 by putting a k241 crank and rod with k301 piston. The small end of the rod will have to be machined for the larger k301 pin. I wonder if the crank will have to be rebalanced. Does anyone know what a standard k301 piston, ring and pin weight? I see the forged m12 piston has a slipper skirt and narrower pin, I wonder if that weights close enough to not have to rebalance the crank. If I have to rebalance I suspect a sleeve would be cheaper. Does anyone know if there is a business/person in the Kansas City area that I might be able to get a block and/or rod from? Thanks for any input.
Pete
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  #28  
Old 03-02-2014, 11:00 AM
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dvogtvpe dvogtvpe is offline
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I've done the 10 to 12 bore on a 10. the wrist pin size is different so you have to address that. you could just get a 12 crank, rod and piston if you haven't purchased any parts. or used block. I get $40 + ship , someone else might have one cheaper.
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  #29  
Old 03-02-2014, 08:26 PM
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Originally Posted by Pswan View Post
Well the machinist called and the block is not cleaned up at 30 over. To sleeve will cost $150. Looking into putting a k301 piston into it. Has anyone here done that? I have seen mention of making a destroked k301 by putting a k241 crank and rod with k301 piston. The small end of the rod will have to be machined for the larger k301 pin. I wonder if the crank will have to be rebalanced. Does anyone know what a standard k301 piston, ring and pin weight? I see the forged m12 piston has a slipper skirt and narrower pin, I wonder if that weights close enough to not have to rebalance the crank. If I have to rebalance I suspect a sleeve would be cheaper. Does anyone know if there is a business/person in the Kansas City area that I might be able to get a block and/or rod from? Thanks for any input.
Pete
Does your block have "K301" cast into the side? If so, there is enough meat to bore to 12 hp specs
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  #30  
Old 03-03-2014, 08:09 AM
Pswan Pswan is offline
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The block does have k301 embossed on it. I guess the real question is rebalancing the crank. There is a good chance the crank is no good too, I haven't heard back on that yet. If so I suppose I could simply get a 301 crank if I have to buy one anyway. I have seen some abused small engines but this one takes the cake for sure. Looks to have never been opened and the bore is more than 30 over and the crank might be more than 20 under! And it ran that way! Not what I expected for sure.
Pete
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