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Converting Kohler M18 Vertical To Horizontal


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#1 GtCraz OFFLINE  

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Posted February 27, 2012 - 03:39 PM

Could anyone help with info on the technical issues regarding the conversion of a Kohler M18 (vertical) to horizontal function?

I have been working with several M18's over the last few years, seems..it's just been a great engine and many have come around lately.
I acquired this M18 (in pics) from a Gt that was partially backed over by backhoe, very low hrs on engine, ran super
so,, I decided to go ahead with the conversion which I always wanted to attempt .

I have a variety of M18(horizontal) parts...it seems to me the many, all, vertical blocks have the precast mounts right there like it
is originally supposed to be a horizontal engine.

This is my changeover list,,
1- pulled oil pan base, had the end plate to replace
2- removed the intake manifold, kept the original carb. installed proper intake manifold
3- drilled out and installed the oil tube and stick
4- tapped and installed the base oil drain tube at designated location
5- removed the breather side valve cover, installed plate umbrella assembly from horiztl engine
I noticed the extra drilled 1/4" hole in the valve spring oil well. (see pic)

I realize the output shaft looks funny, but the engine will be working an invention in progress.
These are my present questions...??
Is there any mods to block (oil pump issues) before installing end plate?
Does the extra through hole in valve spring well have to be plugged?? It only acted as drain when it sat vertical?

I noticed other info when I googled the subject,,having to drill regarding the oil pick-up?

Any information is appreciated..

Thanks,
Troy

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#2 Texas Deere and Horse OFFLINE  

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Posted February 27, 2012 - 04:29 PM

I would check and see where the oil pick-up is for the oil pump. I would think it would have to be relocated to get the oil reserve.
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#3 GtCraz OFFLINE  

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Posted March 05, 2012 - 11:07 PM

I would check and see where the oil pick-up is for the oil pump. I would think it would have to be relocated to get the oil reserve.


Conversion complete...
Thanks Again...


Haven't had it run full out, but ran up to temp, 1200rpm +/-
and it purrrrs away. 35lbs + oil psi.
The only catch, crossing my fingers, is I did this all without splitting the
block. So, drilled the pickup tube location from end plate side, installed set
screw (tapped). BUT no PICKUP TUBE.
Stretched the relief spring just to say, (1/32 or-)
I made the dip stick tube 1/4" longer, engine has that bit more oil, but reads normal..
Always have to keep supplied with good fresh oil and filter.

Hope it'll run balls to the wall on the G-T invention in progress..
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#4 caseguy OFFLINE  

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Posted March 06, 2012 - 05:07 PM

I would love to see that in action...or still even LOL! Got any pics or video of it?

#5 GtCraz OFFLINE  

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Posted April 04, 2012 - 10:15 AM

Hey,

Been outa commission,,, not feeling greatest..
I wanted to get this video out to you to see my successful project.

Video was taken day after I posted that all ran well etc... I now have all the tins on..
all dresssed up !!!
There was a couple other issues I had to tweak but nothing major.. IT ROCKS!

My video taking know-how is not the best,, bear with the home-movie..


Thank you for all ,

TROY
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#6 Wolverine4u1 OFFLINE  

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Posted October 19, 2013 - 04:45 AM

Hi Troy,

 

Very impressive what you  did . I am thinking about doing the same and was wondering if you could give me some more information and what parts I would need. I was watching your video and it sounds excellent. If you could just clarify a couple of the steps it would be so helpful. Thx Dale



#7 KennyP ONLINE  

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Posted October 19, 2013 - 05:15 AM

Hi Troy,

 

Very impressive what you  did . I am thinking about doing the same and was wondering if you could give me some more information and what parts I would need. I was watching your video and it sounds excellent. If you could just clarify a couple of the steps it would be so helpful. Thx Dale

Welcome to the forum. I hope you get some answers on this as Troy hasn't been back since Nov. of last year. Maybe someone else has done the conversion!



#8 Wolverine4u1 OFFLINE  

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Posted October 21, 2013 - 04:49 AM

Thx for the warm welcome.  I will have to see who has done this conversion and who has converted a twin Kohler in a JD 140? I have a couple of projects on the go.I am also trying to hunt down a 36 snow blower for a JD 110 RF.... 



#9 glgrumpy OFFLINE  

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Posted October 23, 2013 - 06:00 PM

OK, so where's the Video he says is here?? Don't see a link or nothing, yet next poster says to have seen it? I really didn't think this could be done, so wanted to see how it finished.



#10 KennyP ONLINE  

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Posted October 23, 2013 - 06:12 PM

I haven't a clue where the video is!






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