Newbie needs help with K 301 A

[JBIV127]

I will start by saying that I know nothing about engines. This is the first motor I have ever cracked. I bought this cc 127 with a K301A in it a year ago and got one summer of tilling out of it. I would love to get it running again on my own. This site gave me the hope that has gotten me this far. But even a know nothing like me sees some bad things.

It started smoking badly this spring. I did dig a mouse nest out of the back of the engine. But I’ll save you the long story on how the tractor was acting before it broke.

Please take a look, tell me what you see. How bad is it? I would like to hear the right way of fixing it. And the cheapest way. I know the two are totally different. But I am weighing my options on what to do.

What I found in the oil pan.

[/IMG]

[JBIV127]

[JBIV127]

I wish I would have taken a pic of her before I tore into it. I may never see her whole again.




The only good news is I think I found out why my hydro lever had so much slop in it.



The give away was seeing the zip strips from the PO. Even a dummy like me spotted this.


If you need me to take better pictures, or pics of somethin else please let me know.

Thanks for looking.

All replys are welcome.

[dvogtvpe]

to start with you'll probably need to cut the crank undersize, you could use murattic acid to take the aluminum off and mike it but to me it should be cut. you'll need a new rod and piston. you can tell the bore is pretty loose and the piston has been rocking pretty bad causing the scraping at the top above the top ring. so you'll need to bore at least .010 os since its still a std bore. the cracked chunk at the bottom of the bore could be chamffered and cleaned up if theres no cracks extending up into the bore. head looks ok . aftermarket parts about 100 to 125. oem kohler parts 250 - 300. plus crank machining and boring. might as well have the valve seats cut ahile you're at it

[David a Calkins]

find a good machine shop ,hvae them [MIC] the parts ,and tell you what you need .the valves should be looked at as well ,and done over bore than you need to ,so you can rebuild later ,

[Jeff in Pa]

Is that a chunk broken out of the crank? ( left of journal )

[JBIV127]

Originally Posted by Jeff in Pa

Is that a chunk broken out of the crank? ( left of journal )

I don't think so. Pretty sure its just where my finger rubbed off some of the oil. But I will look again tomorrow just to be sure.

[Jeff in Pa]

Originally Posted by JBIV127

I don't think so. Pretty sure its just where my finger rubbed off some of the oil. But I will look again tomorrow just to be sure.

Also check the size of the crankshaft where the PTO mounts. I have a fresh ground, never run ( since grinding ) .020 under crank.

Jeff

[JBIV127]

Originally Posted by JBIV127

I don't think so. Pretty sure its just where my finger rubbed off some of the oil. But I will look again tomorrow just to be sure.

Yep just a clean spot.

[JBIV127]

I called a good repair shop to see who they used for their machining. Called that place and for turning the crank, boring out the cylinder, cutting the valves, and chamfering out the chunk at the bottom of the cylinder he quoted me $95. Sounds pretty good to me. What do you guys think?

I do have to tear the rest of the motor down before I bring it into him. Going to get started on that Sunday.

I read on here about replacing the governor gear. Do I just replace it or is there some wear and tear to look for before replacing it? Is there anything else that should be looked at or replaced?

Also, any recommendations on which rebuild kit to use? Is ebay ok to use, or should I go through a shop, or a cc dealer?


Thanks again for your replies.