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Rebuilding a kohler k341 (from a john deere 300)


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#1 Greasy6020 ONLINE  

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Posted August 08, 2017 - 10:07 PM

So, I'm not exactly what one would call "mechanically proficient" once I start tearing down a motor

I have a kohler k341 that I have been whining about here, for a long time, due to what I've come to think is valve issues...

Engine cranks over, really well with the spark plug out, but once the spark plug is in, not even finger tight,the starter will grunt once I hit the compression stroke.

That is getting into foreign territory for me, and my engine internals experience.

What kind of costs am I looking at for having a shop go over the motor and sort out my troubles?

If it's too much, I might just pork out the kohler and put something like a Vtwin in place.

#2 olds45512 ONLINE  

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Posted August 08, 2017 - 10:24 PM

The issue is most likely the compression release, the fact that it has enough compression to stop the starter tells me the engine has plenty of life left.  Download the k series manual and it will explain how the acr works and how to adjust it.


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#3 stiemmy OFFLINE  

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Posted August 08, 2017 - 11:12 PM

Just curious, have you load tested the battery, and starter? If not, that would be the place to start 1st.
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#4 lyall OFFLINE  

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Posted August 08, 2017 - 11:37 PM

I would check the starter.  It might need new brushes in it.  And check the connections on the wire on the starter.

 

If the motor is not using very much oil I would not rebuild.

just check thing over per manual


Edited by lyall, August 08, 2017 - 11:42 PM.

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#5 Trav1s ONLINE  

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Posted August 09, 2017 - 08:16 AM

I agree with the other posts... I'd put my money on the starter or related connections.


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#6 DH1 ONLINE  

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Posted August 09, 2017 - 07:55 PM

Has it always done this?

Starters from smaller Kohler engines will bolt on the 16hp and crank it over but they have a lot less torque.

You need the 16hp starter for the 16hp engine to get it to crank over fast enough.

I ran into this problem with a Massey 16, few yrs ago.


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#7 Greasy6020 ONLINE  

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Posted August 10, 2017 - 06:29 AM

Has it always done this?
Starters from smaller Kohler engines will bolt on the 16hp and crank it over but they have a lot less torque.
You need the 16hp starter for the 16hp engine to get it to crank over fast enough.
I ran into this problem with a Massey 16, few yrs ago.


ya, if I didn't completely charge the battery, then tried starting it.

#8 olds45512 ONLINE  

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Posted August 10, 2017 - 06:53 AM

I doubt it's the starter, my bet is on the acr. It's not uncommon for the acr tab to break off the cam or it might just need bent a bit so it opens the exhaust valve while cranking.
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#9 WNYTractorTinkerer OFFLINE  

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Posted August 10, 2017 - 07:30 AM

Put the starter/battery guesses to rest and perform a Compression test..  If it is over 80# the ACR may have a busted spring as suggested before..  

 

Does the engine start at all??  You may have a bad battery cable connection (check the GROUND too)..

 

Just some ideas for ya..


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#10 DH1 ONLINE  

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Posted August 10, 2017 - 06:55 PM

I did a thread on this starter issue back in 2013 called  " Kohler K Series Starters"

 

I can't copy and paste, maybe one of the mods could do it for me.



#11 motobreeder OFFLINE  

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Posted August 10, 2017 - 07:30 PM

Here's the a link that helps describe different Kohler starters

http://gardentractor...ers#entry325979


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