stuck 560 d

bought a 560 d with a stuck motor has been sitting for two years any ideas how to get on stuck with out tearing motor completly down

You may as well unbolt the head. Freeing up stuck gassers is relatively easy and quite successful.

The diesel creates a whole new problem, and it's called compression, double that of a gasser. I'm afraid new rings, pistons and sleeves are your only answer.

I think I'd change my question if I were you, "How many folks have successfully freed up a stuck diesel, and had it work well after" ? I have heard of hundreds of stuck gassers being freed up and run for years, however I've yet to hear the same about a diesel. I've been around 66 years and close to 10 years on 3-4 discussion forums.

I agree with Hugh.Save yourself a lot of time and pull the head. Diesels don't stick as often as gassers do, so I would bet that she is in need of rings ,etc. I have freed a lot of stuck gassers,but I never saw a stuck diesel. The fuel gives it so much lubricity that it is rare that they stick.

To throw out something else on this, do you know the pistons are stuck or could it be a bad rod bearing?

(quoted from post at 04:21:25 12/18/08) bought a 560 d with a stuck motor has been sitting for two years any ideas how to get on stuck with out tearing motor completly down

Click to expand...

I've never even tried unsticking a diesel, but as far as the end result, I'm inclined to agree with the others. However, seeing your user name and only sitting two years [I presume it was running strong before that? Was the exhuast tight, so no water down it? Else all bets are off], maybe a quick try wouldn't hurt.

I may be way off, but I'm thinking if you pull the pre-cups you should be able to fill the cylinders with diesel [IMHO if it needs a better penatrant in this case, you're looking at pulling the head anyway] pretty easy.

Now wait a week and put shaft on the pto that you don't mind marring with a big pipe wrench; give it a good jolt each way a few times. If this doesn't work after a couple days, I'd place my bets on wrenching over luck!

If you do get lucky don't forget to drag it around the yard a few times after breaking loose to try to splash all the diesel out before going any further. Probably even wouldn't hurt to turn it over by hand yet, with the injectors back in, a few times over a couple days to make sure you don't have too much liquid sitting on top of the cylinders.

And even with that, somebody else will probably note some evils I'm overlooking.

I don't know that tractor well but if it has injectors that can be pulled easy do so then fill the cylinders with turpentine, not paint thinner but the true gum spirits of turpentine. BTDT and had good luck with it. If it was a gas tractor I would say ATF but not on a diesel. Now the question is why is it locked up. I had an Allis XT190 that was locked up because of bad seals in the injector pump and turpentine had it unlocked in less then a week then $900 later with a rebuilt injector pump the old girl ran very well
Hobby farm

I know of 1 guy that did it successfully,I know 4 more that didn't work so good.
The 1 that did work was a 460 that sat in a shed for years,hole in roof and no rain cap.
as I recall he used WD-40 and rigged up a bar with a 100lbs weight on the front pulley to apply constant pressure and i believe it took a few weeks.
once it was free he used a mixture of motor oil and gasoline in each cyl to loosen the rings.
I would like to ask him,but the old boy has been gone for many years.
He once worked for Harvester and said the gas/oil mix was supposed to be used even after they come out of storage.
I do not know if this is fact or not.

Red: There you go, one success to four failures. 20% chance, I suppose it's worth a try.

Put PB Blaster in the cylinders and tap the starter once in a while.

i sure would like to pull the heads on some of them soakers you guys talk about.sure they will run once freed up,but that engine should be pulled apart to do it properly.nothing like a shiny cyl.compared to rusty pitted scored ones.free piston rings,vs seized ones.and so on.but i guess if its not red leave it in the shed.

Wish I woulda paid more attention to the old boy,just didn't interest me at the time.
He did have some awful neat tricks to do things that seemed impossible.

Well all the ones I have freed up do not smoke or use oil so I guess there isn't a problem like sticking rings or rusted/pitted cylinders. I have pull the head on a couple of them and so far they have looked just fine

Lucky, IMO, and in conjunction with the others,,,,No way without some teardown!
I have spoken this many many times on the simplist way to unstick an motor.
1 remove all tinwork, fuel tank.
2 remove intake/exhaust, and with a diesel, fuel pump.
3 remove head.
4 remove pan, oil pump, remove & # each rod cap.
5 air up tires, roll outside, double check area for fire hazards.
6 one cylinder at a time, start with the one that has the most volume, fill with Diesel, add a splash of gas, set fire to fuel mixture, set down drink a cup of coffee, let the fire burn itself out! use a wooden block and hammer drive the piston out from the bottom.
7 repeat step 6 with each of the remaining pistons.
With this procedure you have a fighting chance to save the pistons and maybe the cylinders too if the engine wasn't to wore out when parked. Maybe you can getaway with hoaning the cylinders and new rings. At the worst, and All needs to be replaced, step 6 makes teardown and sleeve pulling more simple. Hope this helps.
Later,
John A.

I have done this trick before as well. It does work! I tried it on a farmall H. I used a pipe wrench on the front starter shaft with a 110 pound weight. I also used a block of wood pushed by hydraulic jack to push a piston down. (A log chain went around the frame to hold the jack from moving.) Worked well. Was sitting oustide since '85 and it runs perfect now. Although we did put new rings in. I also found out on others that if you hit the piston down to hard it will break the sleeves at the top ridge. So be carful of that as you will have to remove the piston and sleeve together (push up from bottom) Good Luck!

(quoted from post at 02:21:25 12/18/08) bought a 560 d with a stuck motor has been sitting for two years any ideas how to get on stuck with out tearing motor completly down

Click to expand...

We have unstuck them with stuff called pentrol in a yellow can from schaeffers oil