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  #1  
Old 01-15-2005, 08:44 PM
SUPRASPORT SUPRASPORT is offline
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Location: CLIMAX, NC
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rebore .030 over?

I'am planning on rebuilding the Kohler K241 10HP for my cub 105. I measured the cylinder as the service manual says, high (top of cylinder) two measurments 90 degrees of each other and low the same. The standard bore for this engine is 3.2505 to 3.2515 The measurments i came up with using T-bore gauges and micrometer are (high) 3.267 -3.269 and (low) 3.273 - 3.272 To me it looks like it would have to be bored .030 over or am i missing something. Could any automotive machine shop with a boring bar perform this work? And about how much $ would it be?-----Thanks Todd
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Old 01-15-2005, 10:09 PM
General Grounds General Grounds is offline
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:blob3: hey todd why not look into getting a short block, alot less trouble and probably same cost of reboring and warranty. tony
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  #3  
Old 01-15-2005, 11:25 PM
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Smalltimer1 Smalltimer1 is offline
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You sure??? A short block is almost $1000, the rebore would only be roughly $100.
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2010 John Deere Z710A 48" cut
1999 John Deere GT-235/54" deck
1985 John Deere 212 w/38" deck
1983 John Deere 420 w/54" hydraulic front blade
1974 John Deere 140, 54" hydraulic blade, 3pt. hitch, tandem disc, plow, 48" deck
1971 John Deere 112, 38" deck, all original, down for engine rebuild.
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Old 01-16-2005, 12:22 AM
General Grounds General Grounds is offline
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:blob3: you may want to check your numbers i just short blocked a 25 kohler on my lazer and that was $700, you can probably buy a new 10 hp for like $400-500.
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  #5  
Old 01-16-2005, 12:37 AM
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Smalltimer1 Smalltimer1 is offline
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Small Engine Warehouse has the K-241 shortblock for $705.00.
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2004 Ford F-250 XL RC/LB 4x2 Power Stroke Diesel
2010 John Deere Z710A 48" cut
1999 John Deere GT-235/54" deck
1985 John Deere 212 w/38" deck
1983 John Deere 420 w/54" hydraulic front blade
1974 John Deere 140, 54" hydraulic blade, 3pt. hitch, tandem disc, plow, 48" deck
1971 John Deere 112, 38" deck, all original, down for engine rebuild.
1967 IH Cub Cadet 124 w/creeper box, disc, plow
1947 Economy/Power King Tractor S/N 590, fully restored.

Certified John Deere Technician
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  #6  
Old 01-16-2005, 06:22 PM
mikemerritt mikemerritt is offline
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Having built a few of these I would say build it yourself, save a bundle and enjoy your work. I have done them with aftermarket and OEM parts and both ways they turn out great. Stens offers a +.030 as well as the rest of the needed parts. You should be able to get it bored for 50.00 or less.

Mike
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  #7  
Old 01-16-2005, 10:57 PM
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Smalltimer1 Smalltimer1 is offline
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If you build it......build it right--meaning not stock!!! Make that little Cubbie into a real bear!!!

Port/Polish, custom cam, custom carb, trim the little bear out with all the goodies.
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2004 Ford F-250 XL RC/LB 4x2 Power Stroke Diesel
2010 John Deere Z710A 48" cut
1999 John Deere GT-235/54" deck
1985 John Deere 212 w/38" deck
1983 John Deere 420 w/54" hydraulic front blade
1974 John Deere 140, 54" hydraulic blade, 3pt. hitch, tandem disc, plow, 48" deck
1971 John Deere 112, 38" deck, all original, down for engine rebuild.
1967 IH Cub Cadet 124 w/creeper box, disc, plow
1947 Economy/Power King Tractor S/N 590, fully restored.

Certified John Deere Technician
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  #8  
Old 01-17-2005, 07:42 AM
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Richard Martin Richard Martin is offline
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I know of a few people who might be able to turn you a cam if you don't want the base circle changed. Oh, and you'd have to provide them with a good core. Probably cost a couple of hundred bucks.
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  #9  
Old 01-18-2005, 03:16 PM
sdwally sdwally is offline
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Rebuild is the way to go in my opinion. Boring about $100 seems to be about right. Piston & rings are available from Napa, cheaper than OEM and just as good. Never had any problems with rebuild parts from Napa. Will be listed in their Power Equipment catalog.
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  #10  
Old 01-18-2005, 08:17 PM
Oldtimer Oldtimer is offline
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Go to www.yetmans.com for the complete specs for your engine. Mike everything as you tear down the engine and you will know what will be required to rebuild it. Your local Kohler dealer might have engine tear down sheets to make it easier to record the measurements.
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