My Kohler K321 14HP rebuild thread

[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.

[Eugen]

@ssmewing the local store didn't have the Champion, so I got the NGK B6LY which is cross referencing the Champion H10C.

[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

.

[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.

[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.

[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.

[DavidBarkey]

Pull the spark plug and see if it cranks any better
Dave

[myerslawnandgarden]

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

[Gordy]

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

[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.