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Re: My Kohler K321 14HP rebuild thread
Posted: Wed Oct 06, 2021 9:53 am
by ssmewing
The Champion H10C is the correct plug is very common. The older parts books say Champion H10, but that was before they improved the plug with a better tip and added the C on the end. Gapping is unchanged.
Re: My Kohler K321 14HP rebuild thread
Posted: Wed Oct 06, 2021 11:13 am
by Eugen
@ssmewing the local store didn't have the Champion, so I got the NGK B6LY which is cross referencing the Champion H10C.
Re: My Kohler K321 14HP rebuild thread
Posted: Thu Oct 07, 2021 1:48 am
by Eugen
Another little setback. One of the engine frame mount bolts broke on me. Totally my fault. True the old trick welding a nut, didn't work. The nut just came off.
I was left with the only other method I know, drill through the bolt larger and larger size drill
until I could use this Irwin tool.
Which worked and I proceeded to install a fee more items. Which are not in the pictures
.
Re: My Kohler K321 14HP rebuild thread
Posted: Thu Oct 07, 2021 10:28 am
by Eugen
Starting to take shape nicely. Done this work late last night (morning) but was totally out of energy to post.
I'm a little confused as to where this piece goes. Back to look through the parts manual.
Re: My Kohler K321 14HP rebuild thread
Posted: Fri Oct 08, 2021 1:45 am
by Eugen
Had very little time tonight to work on the engine, my wife didn't feel well and I wasn't able to come out until very late. Hooked up the carb, and some of the governor stuff. Next time I do something like this I'll take a lot of pictures before disassembly.
Re: My Kohler K321 14HP rebuild thread
Posted: Sun Oct 10, 2021 4:26 pm
by Eugen
Finished assembly but the engine isn't starting. Cranks but it seems too slow. It almost seems like the engine is slightly seized. Turns but hard.
kinda bummed right now.
Re: My Kohler K321 14HP rebuild thread
Posted: Sun Oct 10, 2021 4:57 pm
by DavidBarkey
Pull the spark plug and see if it cranks any better
Dave
Re: My Kohler K321 14HP rebuild thread
Posted: Sun Oct 10, 2021 5:33 pm
by myerslawnandgarden
Eugen wrote: ↑Sun Oct 10, 2021 4:26 pm
Finished assembly but the engine isn't starting. Cranks but it seems too slow. It almost seems like the engine is slightly seized. Turns but hard.
kinda bummed right now.
Eugen,
Did it turn hard before fastening to the pump adapter? The spacing of the pump coupling may not be correct if you did not check that. There are two holes on the bottom side that allow access to the coupling set screws so that you can tighten them after everything is bolted into place. Maybe to start with, just loosen the 4 mounting bolts on the rear of the engine block and see if the engine turns easier then.
Just had a guy turn his pump into toast and contaminate the entire hydraulic system by because he installed a different engine and had the pump coupling misadjusted. He would have been money and time ahead if his engine did not start like yours.
Bob
Re: My Kohler K321 14HP rebuild thread
Posted: Sun Oct 10, 2021 11:04 pm
by Gordy
myerslawnandgarden wrote: ↑Sun Oct 10, 2021 5:33 pm
Eugen wrote: ↑Sun Oct 10, 2021 4:26 pm
Finished assembly but the engine isn't starting. Cranks but it seems too slow. It almost seems like the engine is slightly seized. Turns but hard.
kinda bummed right now.
Eugen,
Did it turn hard before fastening to the pump adapter? The spacing of the pump coupling may not be correct if you did not check that. There are two holes on the bottom side that allow access to the coupling set screws so that you can tighten them after everything is bolted into place. Maybe to start with, just loosen the 4 mounting bolts on the rear of the engine block and see if the engine turns easier then.
Just had a guy turn his pump into toast and contaminate the entire hydraulic system by because he installed a different engine and had the pump coupling misadjusted. He would have been money and time ahead if his engine did not start like yours.
Bob
Similar story from my local former Case dealer Joe. The tractor owner replaced the pump, then brought it in for lack of power to the wheels. When Joe loosened the 4 bolts from engine to adaptor the adaptor moved out 1/8" and could not be pushed back in by hand. Joe figured less than 10 minutes to destroy the new pump with all that end pressure.
BUT Eugen looking back to the beginning of this thread, you have the starter/ generator. While I have not dealt with them much, I do know they turn slower than a newer dedicated type starter such as on my 224-78.
Gordy
Re: My Kohler K321 14HP rebuild thread
Posted: Sun Oct 10, 2021 11:56 pm
by Eugen
With the spark plug in, slow
https://vimeo.com/628743544
@DavidBarkey With the spark plug out. Good spark, a little faster.
https://vimeo.com/628738166
@myerslawnandgarden Bob, with the spark plug in but the pump housing bolts loose
https://vimeo.com/628746953
Thank you guys! Bob was right I think. Trying to fix it now.