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Thinking About A Diesel Repower.


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#1 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 08:17 AM

I have a simplicity 4041 it has a 20 horse onan I have seen some conversions done to this tractor. From a 23 Briggs to a 350 v8. I have started to think about buying another non runner and putting a diesel but I need guidance on this. Never did this type of repower no clue where to start. The unit has a front mount pto and it drives the rear trans and rear pto from the other side of the crank. What about rotation. I could get another frame and extend it and the hood to give more room for the cooling fan and radiator. So what are the experts here thinking


Tim
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#2 Talntedmrgreen OFFLINE  

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Posted October 07, 2014 - 08:47 AM

Ive always thought a little diesel in one of these would be ideal (as would power steering). Many folks who repower with diesel end up doing exactly what you mentioned....extend the frame and hood. Some look like frankentractors and others like artwork, but either way, they have boat loads of power and better fuel efficiency.

#3 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 08:50 AM

Yeah this is going go be a very long project


Tim

#4 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 08:52 AM

If I can figure this out and figure out how to give this old girl power steering it would be perfect


Tim

#5 Cat385B ONLINE  

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Posted October 07, 2014 - 10:39 AM

Look for a late 80's to 90's Toro or Jacobsen golf course mower. Usually have low to mid 20's hp Kubotas and ps.

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#6 Pager450n OFFLINE  

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Posted October 07, 2014 - 02:19 PM

Look for a late 80's to 90's Toro or Jacobsen golf course mower. Usually have low to mid 20's hp Kubotas and ps.
attachicon.gifimage.jpg


Agreed! I finished a repower on a jd400 with a mitsubishi l3e. The factory setup used both ends of the engine as you are stating. My engine was a 3 cylinder, and was able to squeeze everything within the hood without extensions of hood or frame.

I found out that planning is key. I had all of my parts on hand once I started. This allowed me to fit everything in, BUT ALWAYS have PLAN B on hand. I ran into an issue with the cooling fan, went from electrical to pulley back to electrical with temp relay.

I was also told that if you can find a decent 2 cylinder, that will give you more room under the hood for accessories and radiator.

My biggest advice is have fun an try to learn something new during the process.

This forum is a BIG help, and has tons of info, previous threads and great members.
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#7 Pager450n OFFLINE  

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Posted October 07, 2014 - 02:20 PM

If I can figure this out and figure out how to give this old girl power steering it would be perfect
Tim


If you can find a jd400 power assist actuator, that will be a quick way for PS.

#8 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 03:25 PM

I think the hardest part will be finding the right motor and getting it all lined up May have to plan a battery move to free up some space for the radiator and fan but there is a lot of room up there grime that 20 onan beast


Tim

#9 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 03:26 PM

And I think the weight won't change to much cause that onan is a big ol pig


Tim

#10 olcowhand ONLINE  

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Posted October 07, 2014 - 03:46 PM

And I think the weight won't change to much cause that onan is a big ol pig


Tim

 

No, weight won't be altered much if any.  That CCKB is one heavy cast iron critter!



#11 mtoney OFFLINE  

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Posted October 07, 2014 - 04:11 PM

Those Onan CCKA's are worth some coin if its not blown up or damaged.  You will be able to recoup some of the costs by selling it off.  I would try to stay with a Kubota or Yanmar diesel.  They are probably the easiest to find parts for.  Also keep in mind that there are some air cooled twin cylinder diesels out there as well, mostly Lombardini.  I would also go with a full gauge package on the dash to monitor oil pressure, engine temp ect.  Good luck on the conversion.   Mike



#12 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 05:10 PM

I am finding all kind of them for sale


Tim

#13 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 05:11 PM

I don't even have the tractor yet


Tim

#14 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 05:13 PM

Still in the planning stage


Tim

#15 Tim Bergfeld OFFLINE  

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Posted October 07, 2014 - 05:14 PM

But it will come along soon I am sure got to finish this one first


Tim




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