Advice on Tow Starting A D2

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RoyBovee17

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I recently bough a D25J and the pony motor is set up and needs to rebuild but i dont have the time or money right now. My friend has a big enough tractor where i think we can tow start it. Is there any tricks or concerns when doing this? Thanks Roy

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Sun, May 8, 2011 3:17 AM

zootownjeepguy

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I've done it before years ago when I had a 3J. Put it in 3rd or 4th gear so you are not spinning the engine too fast (and makes it easier to tow too). Pull it a couple hundred feet or so under compression and then open the throttle. Be ready to disengage the clutch when it fires!

Good Luck!👍

P.S. A bit of advice from past experience: Don't let your tow chain get pinched between the grousers.:jaw:
All of my mistakes are copyrighted. If you try to repeat them I could take legal action.😆😆😆

Rich Salvaggio
D2 5U9917
'46 Willys CJ2A Farm Jeep, '39 Buick sedan, '49 International KB-7, '37 Allis Chalmers WC, Cushman Scooter(s)
Antique garden tractors & outboard motors
Other rusty old junk comes & goes without warning.

The 2 most useful tools to have in your shop are a Crystal Ball and a Magic Wand

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Sun, May 8, 2011 5:12 AM

ag-mike

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Reply to zootownjeepguy:

I've done it before years ago when I had a 3J. Put it in 3rd or 4th gear so you are not spinning the engine too fast (and makes it easier to tow too). Pull it a couple hundred feet or so under compression and then open the throttle. Be ready to disengage the clutch when it fires!

Good Luck!👍

P.S. A bit of advice from past experience: Don't let your tow chain get pinched between the grousers.:jaw:
All of my mistakes are copyrighted. If you try to repeat them I could take legal action.😆😆😆

drain the water out of the block if its been sitting long.
pull it all u can decompressed it get oil pressure up and make sure u got it, also note if u got fuel pressure.

then take a break, i'd pull it under decompress with fuel on, its more important to me to have oilpress before putting compression on. when towing, rig it up using compression to start.
good luck

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Sun, May 8, 2011 5:44 AM

johncat07

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Reply to ag-mike:

drain the water out of the block if its been sitting long.
pull it all u can decompressed it get oil pressure up and make sure u got it, also note if u got fuel pressure.

then take a break, i'd pull it under decompress with fuel on, its more important to me to have oilpress before putting compression on. when towing, rig it up using compression to start.
good luck

first thing above all else is ensure the master clutch isn't frozen, otherwise you'll be up the sphincter of that tractor real quick. easiest way disengage clutch, select a gear and turn main motor over at fan. if the dozer starts moving you've got a stuck clutch.

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Sun, May 8, 2011 7:06 AM

ccjersey

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Always a good idea to drain the engine crankcase and other gear cases enough to ensure there is no water and or chunks of metal before you move it far. Also great to lube the rollers etc in place if possible.

I would say definitely turn the engine over a couple turns with the fan or with a bar etc before you pull start it. It would be easy to bend a connecting rod if one cylinder had some liquid in it. I bet you could even bend one with the compression release pulled if you were unlucky.

If the main clutch is stuck, you could still pull start it, or better yet push it off and then you can try to break the clutch loose by working it. Starting will be easier in high gear and that would also make it easier to slip a stuck clutch. You just have to have the pulling tractor in a high enough gear to outrun the CAT if you pull it.

D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄

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Sun, May 8, 2011 11:37 PM

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