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Reload this Page K301 engine bore scoring
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  #1  
Old 07-17-2021, 03:07 PM
SLS327 SLS327 is offline
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Default K301 engine bore scoring
I pulled the head on my newly acquired 127 and to my dismay the engine was scored really bad and it obviously was not running . The piston is not stamped on top std, but i think it is not been bored. I tried to show how deep the grooves are, but about + .045. the last picture is a .045 spark plug gauge wire buried

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I think this will need to be bored and put a sleeve in it for a std piston. I read a couple places of boring them to 3.5" but I don't think I want to do that.

My thoughts are that it got water in the cylinder and rusted the pin to the side or corroded in that area and then ran for a while. It got pushed to the back for later.
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Old 07-17-2021, 05:01 PM
finsruskw finsruskw is offline
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Wow!
That is a nasty looking bore for sure.
Good luck with it
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  #3  
Old 07-17-2021, 08:34 PM
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athomas athomas is offline
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Wow!
That is a nasty looking bore for sure.
Good luck with it
I'll second that !
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Old 07-18-2021, 06:12 AM
Esteban Esteban is offline
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My goodness !
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Old 07-18-2021, 06:47 AM
R Bedell R Bedell is offline
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O M G...............
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Old 07-18-2021, 07:47 AM
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ol'George ol'George is offline
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Ya it's bad, but I've seen worse in engines, Yes it can be bored/sleeved back to Std, and be as good as new if done by a reputable shop.
Something I'll mention as I am not up to date on the cost of a sleeve repair:
Since that is not a one- of-a kind, high dollar value engine of historical significance, a lot of times one can find an identical engine block either in good shape or easily machined .010 over and go that way.
That engine can become a parts donor.
It is not the first time unknown problems are discovered.
What your plans for the tractor are, will direct your wise financial decision.
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Old 07-18-2021, 09:52 AM
SLS327 SLS327 is offline
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Thankfully I was able to measure it with my primary cylinder bore measuring tools.

Quote:
Originally Posted by ol'George View Post
Something I'll mention as I am not up to date on the cost of a sleeve repair:
Since that is not a one- of-a kind, high dollar value engine of historical significance, a lot of times one can find an identical engine block either in good shape or easily machined .010 over and go that way.
That engine can become a parts donor.
It is not the first time unknown problems are discovered.
What your plans for the tractor are, will direct your wise financial decision.
Yes, thats true George, I called a reputable machine shop ~$200 parts and labor to sleeve. A friend would be able to do it for way less. I will see what comes along.
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Old 07-18-2021, 12:49 PM
dale c. dale c. is offline
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I've seen engines get sleeved only to have the whole cylinder break off and be totally junk , I'd find another block ....be a lot cheaper in the end
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Old 07-18-2021, 08:26 PM
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ol'George ol'George is offline
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I've seen engines get sleeved only to have the whole cylinder break off and be totally junk , I'd find another block ....be a lot cheaper in the end
I would think that event would be on a thin walled cylinder.
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Old 07-18-2021, 11:02 PM
dale c. dale c. is offline
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it was a k series someone posted on here a couple years ago or so.
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