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Was out pickin' again


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#1 ducky OFFLINE  

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Posted January 01, 2012 - 10:55 AM

Found these 2 engines on Craig's list. One is complete and one is short Starter, Fuel pump and Injectors, Head is off and rocker and push tubes are missing. The other is complete and should run if we supply fuel and bleed the fuel system. It is a $120 gamble but I think I can win this one.
122911_1500[00].jpg
These are Thermo King - Mercedes DM 636s 1767cc. Seller said 28 HP. Was thinking of using for repowering the 4855 but at 28" long and are quite heavy I will probable have to resell.:mecry:

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#2 Toolpartzman OFFLINE  

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Posted January 01, 2012 - 11:16 AM

Great buy-Looks like the odds are on your side. They do look BIG- Are they a direct-drive or is there a clutch/tranny assy under the bell housing?

#3 ducky OFFLINE  

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Posted January 01, 2012 - 11:19 AM

No Clutch, Just a flywheel.

#4 MH81 ONLINE  

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Posted January 01, 2012 - 11:42 AM

Nice buy, sounds like a frame extension is in order...

#5 ducky OFFLINE  

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Posted January 01, 2012 - 11:55 AM

Alan
You are going to convince me to put that in there aren't you.

#6 MH81 ONLINE  

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Posted January 01, 2012 - 12:05 PM

Well, if not that tractor, then you have to find another one. It's a rule...somewhere.

#7 ducky OFFLINE  

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Posted January 01, 2012 - 12:10 PM

I best not break the rules should I?

Let me get it fired and get that 5 gallon oil pan of the thing and see what it looks like.

#8 Amigatec OFFLINE  

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Posted January 01, 2012 - 12:13 PM

Yes these have BIG oil pans, and some of these used a Starter/Altenator inside the bellhousing. I see this one has an external setup for both.

#9 olcowhand ONLINE  

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Posted January 01, 2012 - 01:23 PM

At over 1700cc, it must put out the 28hp at a lower rpm. My Kubota D1005(cc) is rated 24hp continuous. But being you are driving twin pumps, each rated to handle 15 true horse power (up to 24 with mods), then 28hp is just right. You have the tires & drivetrain to handle it, so I'd be looking REAL close at using this engine if it can fit easy enough.

#10 ducky OFFLINE  

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Posted January 01, 2012 - 01:39 PM

Daniel
I have been told this Sundstrand's can handle all of 2o HP each. Can not remember where i saw that though.
If I can cut the bellhousing down and remove the flywheel and replace it with a smaller diameter 1" thick plate I should be able to move the engine back and up just a bit. That just might work. I am sure I can fab up a custom oil pan no problem.
Way not pull 10 or 14 bottoms and stay on the land. LOL
Oh hang on I have to run out to the shop for a bit!!!!!!!!!!

#11 Rick Brumback OFFLINE  

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Posted January 01, 2012 - 02:52 PM

Thermo King?Musta come off a refridgerated semi trailer.

#12 olcowhand ONLINE  

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Posted January 01, 2012 - 03:25 PM

Actually ducky, I've read they can handle up to 24hp each, but Tudor insists they have settings in place to where they can only put 15hp actually to the ground. I really wish Tudor would become more active here, as he is quite knowledgeable of the Sundstrand hydro systems. These settings are more or less to prolong the life of the hydro unit. Raising pressure settings increase wear.

#13 Cvans ONLINE  

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Posted January 01, 2012 - 07:37 PM

Raising pressure settings increase wear

This makes perfect sense to me. The torque factor on a diesel is much higher and the power impulses a lot stronger. A 4 cylinder would be pretty smooth but Oh man for the torque. One would hope there was a relief valve in there somewhere.

#14 ducky OFFLINE  

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Posted January 01, 2012 - 08:35 PM

There is a 5000PSI relief in there to protect the hydro from damage.
Charge pump pressure has nothing to do with the power output. All the charge pump does is keep the rotor and motor supplied with oil. The rotor and motor have a small amount of leakage for lubrication and cooling purposes and all the charge pump does is maintain a positive pressure on the drive system to keep it supplied with oil and move some around though the axle to promote cooling.

I have had to weight the front of my 1855 to maintain steering years ago when plowing. I built a plow out of a horse plow and it pulled fairly easy till we had to do some of that red clay up here. That plow had good suck and put all the traction on the drives. Lift the plow without stopping and the front end would come up. We had as much as 300 lbs on the top wheel to hold it and about 100 on the furrow wheel. Not sure why that old girl kept on going but she did anything we asked.

#15 olcowhand ONLINE  

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Posted January 01, 2012 - 08:38 PM

I knew the charge pump is just that...a supplier of oil, and enough pressure for implement lift. I did not know the hydro internal relief setting though.




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