K321 reassembly
 

I have started to rebuild the K321 putting it back together today. I have the valves in, camshaft and governor gear, etc. My questions is am I going to have trouble matching the camshaft to the crankshaft and get it in time. What I read briefly in the Manual shows how to put it back together using the balance gears. I am leaving those out of the reassembly.

So, what are the suggestions to be sure its in time when I put the crank back in matching to the camshaft.

I had been waiting for some warm weather, now its here, and I'm anxious to hear it run again. I have lots of jobs for it.
Thanks for the help
Dave in SW Missouri

I would assume just matching up the timing marks on the cam and crank per the manual.

Oh yeah, no fair. I am still saving my pennies up to get the crank done. Can't put mine back together until then. Oh but when it finally starts up.:biggrin2:

Dave, Just match the timing marks on the cam and the crank like the manual shows. It's much easier to line them up without the balance gears.

K321
 

Thank for the info, I really hadn't read that close enough about putting it back together. I was getting tangled up with the balance gears, and wasn't seeing the marks on the crank and camshaft. I see the mark on the camshaft, the crank is not right here with me at the minute. I also see the "C" on the camshaft.
Dave

Go to page 124.
http://www.kohlerengines.com/onlinec...df/tp_2379.pdf

K321 block
 

I started to rebuild a K321, only to find the block cracked and a chunk broken off the bottom of the cylinder wall.

I got a second block, had it bored and when I started to assemble it with new parts, I find an extra hole for something in the block. I am attaching a picture of it, its a hole with a couple threaded screw holes. I will have to cover that in some fashion, otherwise the block is the same as my old one.

What was this hole for, possibly an oil filter? Its the round hole to the right of the camshaft cover.

There is no oil pump so would not be an oil filter. I am thinking possibly a fuel pump maybe? Hoping someone that has seen a block like this will know. I have never seen one like that.

That hole is for an external fuel pump there should be a factory cover that will bolt in its place to cover the hole

Fuel pump block off
 

Ok on the fuel pump. My old K321 does not have a block off plate on it. I looked real quick when I discovered this hole. I can't believe I hadn't seen that until now.

We'll its a cinch I got to have the plate. This is one time duct tape just won't do the trick.
Thanks a bunch guys.
Dave in SW Missouri

Didn't think I had one on mine either. But you can see the boss where it would have been.
http://i210.photobucket.com/albums/b...2/Image010.jpg

I am sure I have an extra one!
 

Dave,
I am sure I have an extra one, I have my K321 at the machine shop at the moment and believe I neglected to remove it. I had a cracked K301 that I took apart today to use parts (crank) for the 321. I know for sure the 301 had one because I removed it during the tear down. Let me check with the machine shop tomorrow to see for sure the 321 still has one on it. I am sure it does, but just want to be sure. If that is the case, I can send you the extra one for free if you'll pay for the shipping, should be cheap through USPS flat rate envelope!

And as mentioned above, that hole is for a mechanical fuel pump that was not used on the cubs. You should have a gasket for it in your overhaul gasket kit.

Got to help my fellow Missourian out with a 149 to boot!:biggrin2:

Am I bad?
 

I hate to admit to this, but this hole is on the opposite side of the crankcase as the fuel pump hole. Its about that size though.

I'll attach a picture of it tomorrow. My son acquired this block for me after my original had some severe damage. I didn't pay attention to that hole until I had it reassembled.

Likewise, I thought it was the fuel pump hole, but after looking again its on the other side of the block. I am beginning to wonder if this engine was used for something other than a CCadet.

Photo tomorrow.
Dave