Old Dozer Re-power

   / Old Dozer Re-power #11  
But if you approach this thing with the "build it yourself" mentality, it looks to me like you would have tracks and a frame, with a loader, bucket, etc. What if you found a more modern engine, used a 2 or 3 ganged hydraulic pump mounted to a engine, dropped it in place, and then bought hydraulic motors to supply power to the tracks?

I hear you and understand your thinking. Why re-invent the wheel right? What if instead of buying expensive new hydraulics you used units off a old combine?
 
   / Old Dozer Re-power #12  
If your intention is to just get a means of moving dirt, there are easier alternatives, i suppose you already have a tractor around ?

https://www.youtube.com/watch?v=A8DV6hD3HEw
https://www.youtube.com/watch?v=R6SOpcDGNxo

Or on 2wd tractors in India:
https://www.youtube.com/watch?v=CT_wXCt4yuE
And America:
https://www.youtube.com/watch?v=e6PvNM4EZHU
with a little counterweight on the back they are just as capable as a dozer of the same weight, they can just move the same load faster because of the higher power to weight ratio

Or just pull type:
https://www.youtube.com/watch?v=EMHJ85HdFM0
https://www.youtube.com/watch?v=-lAW4JolK1E

And if your intention is to blow your savings on a unique home made dozer, you better start from scratch, you'll end up spending the money anyways but then youve got to work around the existing parts.
 
   / Old Dozer Re-power #13  
That old International moving snow reminds me of my first "big" tractor, A John Deere 410. I reasoned I wouldn't need tire chains, the tractor being so big and all. These things are a 7 ton hockey puck, they go where gravity wants them to go. I learned tire chains are a matter of life or death.
 
   / Old Dozer Re-power #14  
Do you want a tinker project being thta you have lots of time and money? Or are you trying to save $$$ and have a dozer.
Donor engines from old JD combines are a drop in swap.
If you insist on a repower. The 1010 bel housing bolt pattern is identical to the two cylinder Dubuque pattern. A donor 440ID will bolt the 2-53 Detroit Diesel onto the 1010.
The engine is the last thing to worry about and the cheapest item to repair. It's that undercarriage and steering clutches to be concerned with.
 
   / Old Dozer Re-power #15  
I think once you start pricing out what the parts cost, you'll find it a lot cheaper to buy one already running. There is a reason that they get to a point that they are only worth scrap. I have a Case 1550 dozer that weighs 40,000 pounds and has a 170 hp Cummins turbo diesel engine. It is hydrostatic drive with three different hydraulic pumps. One for each track, and one for the blade. Each pump costs $30,000 new from the dealer. Good luck trying to find a replacement that will do the job for less, they don't exist. You might find a used on in another dozer, but that's not likely either. I ended up rebuilding one of my pumps for $3,000 after I took it out and brought it to the shop, then installed it myself.

Add the price of hoses, brackets, the reservoir, drive motors, and how you are going to control it and you could easily have a running dozer that already does everything for less then just the parts. As for the time it would take to figure this out and make it work? There's just no telling, but I'm guessing four times what you estimate. Probably the same with your budget. Quadruple it and then rethink if it's worth your time and money when you can buy a decent sized, running machine that is in need of some upkeep and repairs, but running and able to do the job for $20 to $40 grand.

Eddie
 
   / Old Dozer Re-power
  • Thread Starter
#16  
I think my main problem is I had a too simplistic notion of how a hydrostatic system worked. I supposed that's why it wasn't used much in the old days, till technology caught up? From the few technical terms mentioned in this thread, sounds like it takes some complex pieces to make a one-off drive system. I have worked on a lot of equipment that the only thing hooked to the engine was a large hydraulic pump. Everything else was hoses and valving.

I have messed around with a few hydrostatic tractors also. One I remember was a small Kubota. It looked to me like a regular geared tractor, they even kept the clutch, regular looking transaxle, and the hydrostatic unit seemed to be a thin unit that they "sandwiched" between the clutch output and the transaxle input. Is this also too simplistic interpretation or is that what they actually did on some of these?
 
   / Old Dozer Re-power #17  
This is a project that's a lot of years out that I'm going to take on. I'm sure everyone here has already seen it but I'll post the link anyway. Maybe you could drive the tracks off the pto with a gear box, like the snow machine.
Fordson Snow Machine - 1929 Concept - YouTube
 
   / Old Dozer Re-power #18  
   / Old Dozer Re-power #20  
I was going to repower this old Case 310 with a Volvo engine but once I found that G148 parts are available cheap I saved the old girl. Did this job in 1997 and never looked back, it starts and runs like new down to below zero. Not many creature comforts like newer machines but it gets the job done skidding a few trees for firewood or fixing the driveway after a big storm.

A few years ago I found a Gearmatic #9 winch and rebuilt that. I have over 15 grand tied up in all but have also used this thing for 16 years. I wouldn't trade it for anything because I would never get my investment back.

Last Spring the flywheel ring gear went bad and I called the Case IH dealer. They got me a new gear for $114.00. Hard to beat old machinery. Points are available at Traiter Supply too.

Fred

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