When I was looking for a machine shop I started by asking a few of the small engine repair centers and my local Cub Cadet dealer. From there I got a few names and made the call to each shop asking general pricing. I also asked a simple question did they ever do a K series engine? I was a little shock when a few of them said no, which I then ruled out. Two of them said yes.

I stopped by their shops to look around, the first one appeared to be disorganized and not to clean. The second on was clean and very organized and I also found out that they use to be a Kohler engine repair center. The shop foreman had very good knowledge of the K321 I had and offered many tips on rebuilding it. They also had a good amount of kohler parts on hand since they can do a complete engine rebuild on site. He offered to buy the Kohler rod, piston and rings at his cost which saved me $45 buck. This was also good for him since he can measure the new parts and machine for a good fit.

When I picked up the block it looked like a new block, very clean all the surfaces spot less. He also gave me a sheet with measurement before and after the work. When I was putting it all back together I had a few questions and the foreman spent the time giving me the answers. Over all I was very happy with the work and support.

I think the very simple question of did you ever do a Kohler? paid off for me. All the shops said they can do it but I felt the one I picked could do it and do it right.

Time to kick this thread back up. I came across a complete 14HP Cub Kohler motor (which would make it a K321 I assume... I'm not the best with the model #'s) that may be in better shape than my 10HP K241. First, will it physically fit in my 100? If so, what would I need to change to make the 14HP work in place of the 10HP?

You would have to cut the frame. A 12hp K301 is the largest motor you can put in there without cutting the frame. As sweet of a 100 as that I wouldn't cut the frame. The one thing I've learned about this addiction er hobby is you've got to be able to wait it out you'll find the right motor. It's your 100 and your free to do what you want to it.

Couldn't agree more Duke. Cutting the frame is out of the question, so I'm fine with rebuilding the current motor and running with that or a 12HP if that comes along.

Made a bit more progress in the last couple of days. Finally got the pivot pin out of the axle & got the hyd. lift pulled apart. The lift doeesn't look too bad even though there is evidence that a little water got inside. Some light rust but nothing some Scotch Brite can't get rid of. The oil/fluid came out looking like milk chocolate which points to the water idea. The front axle is in good shape too. My issue at the moment is the collars that hold the pivot pin on the frame. The pin froze in the axle, sheared the spiral pin and pivoted in the collars, wearing them out. After looking, I can't find replacement collars and am curious what you guys would recommend as a repair. Some new pictures too. Thanks everyone!:beerchug:

Find someone with a lathe and have them make new bushings for you to weld into the axle c-channel.

A bit more progress...
 

Things are going slow, but they are still going. I was able to get a new pivot pin & bushings (thanks Patton Acres!) along with grease zerks in the front axle and get that remounted. Put the tins back on the frame to help clean up my mess. Had the wheels sandblasted and finished repainting them and my seat last night. Used PPG Omni (Shop Line) Acrylic Enamel #8665 put in a spraycan and the color came out awesome!! Sprayed some on the hood and it matched enough to fool my eyes. Waiting for my new shoes from Miller Tire and then the 100 will be back on its feet. Onto the motor & both clutches next. The motor seems to be fighting me at the moment... can't get the starter pulley off of the crankshaft.

That's looking great and that seat is to die for.:beerchug:

Looks awesome! Thanks for the update! :beerchug:

Damn flywheel...
 

Was able to get the starter pulley off of the motor tonight. Tried to get the flywheel to come off but it won't budge. Soaked it with JB-80, used some heat, smacked it with a wood block & hammer and used my harmonic balancer puller too, but no go. Bent the bolts on my puller... :Duh: It's on the crankshaft good enough I can't see a part line where the two pieces meet as its only rust & discoloration. So I'm assuming they're seized together pretty good. Any suggestions?? :bigthink: