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  #11  
Old 08-06-2016, 08:40 PM
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Good luck with the repairs. Certainly a wealth of knowledge on this site.

Here is a link to the manual for the K301 engine

Owners
http://www.kohlerengines.com/onlinec...1346_c_all.pdf

Service
http://www.kohlerengines.com/onlinec...df/tp_2379.pdf

Perhaps it can help figuring out if there are balance gears.
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Cub Cadets: 1200 | 149 | 1650 | 122 | Z-Force S 54
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  #12  
Old 08-06-2016, 10:40 PM
J-Mech J-Mech is offline
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No balance gears in an AQS engine. Don't believe me? I don't care. Look it up yourself.
http://www.cubcadet.com/equipment/AR...______________

They guy who says they have them likely had a machine someone had already messed with.



You can't tell much about the condition of a piston from the top like that. Damage is most always on the side, where you can't see until it is removed. Don't get excited.... leave it in there. Roll the piston down in the hole and lest see a pic of the cylinder. More can be observed from the cylinder than the top of the piston.

Pretty nasty in there. Head gasket was blown... and it was sucking oil up. It's likely worn out, but clean it up and put it back together and see if it burns oil. May run a few more years. Not really much to tell with a blown gasket and the carbon gunked up like that.

How long have you owned this machine?? You don't say.
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  #13  
Old 08-06-2016, 11:04 PM
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Thanks Jonathan! I believe you!!!

I just bought it. The hour meter works and say 450. I am assuming that is a possible 950. It was owned by 2 previous owners. Last owner had it for about 5 years and only plowed with it. Seems to be in good condition for 40 years. Better than my 1990 Deere.

Cylinder walls seem nice and shiny all around. Not sure how well it shows in the pictures. Getting a picture of a cylinder wall is like trying to get a good picture of a toddler... Lol
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  #14  
Old 08-06-2016, 11:20 PM
J-Mech J-Mech is offline
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Yeah, cylinder walls are had to get a pic of. I think I can see hatch marks on them still. They should be shiny.... kind of. If they are too shiny, they're shot. Should be kind of hazy (best way I can describe it). Should still be able to see hatch marks. If you can't, they're wore out. Even if you can, it may still be wore pretty bad, but not usually.
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  #15  
Old 08-06-2016, 11:24 PM
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I will take that advise and go back out tomorrow. They very well may be TOO shiny.

Thank you!!!
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  #16  
Old 08-06-2016, 11:27 PM
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Clean the carbon off the top of the cylinder. Once it's clear, see if it has a lip wore out of the cylinder. I'm sure it will, but how bad...??
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  #17  
Old 08-07-2016, 10:53 AM
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read page 11.11 in the kohler service manual "most k321 and k341 k series engines have balance gears. some k321 and k301 engines are equipped with a balance gear system" looks like you have a 50/50 shot that they are in there
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  #18  
Old 08-07-2016, 11:01 AM
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Nix, buddy, yes some of the K321 and K341'see had balance gears. But NONE of the AQS motors did.
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  #19  
Old 08-07-2016, 11:29 AM
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well i must have something special then.both my 1250 and 1650 had them in there.both tractor were purchased from the dealership my dad worked for as a mechanic for forty+ years.he did all the service on them and never replaced an engine in them just valve jobs and rings
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  #20  
Old 08-07-2016, 12:37 PM
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I suppose some of the early ones could have still had them.
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