Hey Old, question about stuck engine.

Square Eye · Mar 13, 2022

Ive got a Moline G900 propane. Its been sitting outside
for 20+ years. Thought Id try to resurrect it.

The engine is stuck. Remind me of the formula you use in
the cylinders to free them up, please. Ive seen it here before, but cant remember what you use, and my search abilities are weak, to say the least. Thanks for your help.

diesel fumes · Mar 13, 2022

50:50 acetone to atf among many others.

old · Mar 13, 2022

First thing to do is make sure there is no water in the cylinders. If there is water nothing it likely to free it up with out a take apart of the engine. If there dry fill with ATF. Pull one plug at a time fill then put the plug back in. If it has a vertical exhaust pour as much ATF down the exhaust as you can till it leaks some place. Then let it sit a week or so. Then after a week or so pull the plugs and try to spin it over.

Square Eye · Mar 13, 2022

Thanks for the quick response! Ill try it. Probably wont be in town for a few days to get the atf, then Ill give it a go.

Square Eye · Mar 13, 2022

Thanks D. F. If the atf doesnt do it, Ill try it with the acetone added.

old · Mar 13, 2022

Check the cylinder for water/coolant first ATF will do nothing if it has either in the cylinders.

guido · Mar 13, 2022

Square Eye,

X2 on the atf acetone 50/50 mix. Shake the mix well before you pour it in. Take all the plugs out and vacuum out any water on top of the pistons. This will allow the mix to get to the rings much better.

Good luck,

Guido.

old · Mar 13, 2022

I have never used acetone since after a few days the ATF an acetone will separate and if I remember right the ATF will float on top of the acetone so then the ATF isn't able to do it job unless the acetone seeps by the rings

Geo-TH,In · Mar 13, 2022

Old,
I suspected the hydraulic lifter or valve was sticking on my 20 hp kohler command. I added seafoam and ATF to gas. Changed oil, full synthetic oil and ATF to oil. I start it daily. I think the engine is healed..I've been keeping an eye on the left cylinder spark plug. Sometimes I start the terramite, back it out of the pole barn and let it run full throttle for a half hour or so..
Haven't been using it much this winter..
Over 2000 hrs on engine..

guido · Mar 13, 2022

old,
The mix makes it a thinner solution, and penetrates much better. It will go sometimes pass the rings. Oil will have to be changed anyway,

Guido.

old · Mar 13, 2022

I know it tins the ATF but not by much and ATF is a thin oil in the first place. I have used ATF and turpentine mixed and that worked well

Ac145 · Mar 13, 2022

I'm at fond believer in PB blaster had an old combine soaked for two weeks all different parts and linkage it took a little bit of time but most everything finally broke loose

Square Eye · Mar 13, 2022

Of course Ill check for water, but I seriously doubt there is any. The muffler has been covered, and we havent had any moisture to speak of for months on end. The crankcase oil looks good and isnt over full. I thought I would crack the drain to see if any water comes out, though. If not much, then I dont expect much, if any, in the cylinders.

To try to move the engine after soaking I will have to use a wrench on the crankshaft nut. I cant get the shift lever to go into high range, so no jacking up a wheel to rock.

I expect I will be exercising patience.

old · Mar 13, 2022

By the way you can run an engine with ATF in the oil but I sure would do so with acetone in the oil

used red MN · Mar 13, 2022

In my opinion setting 20 years GOOD LUCK. If there is water in a cylinder or if one of the spark plugs or inside a spark plug hole looks like rusty crud the best thing to do is apply your wrenches and at least take the head off. If it is in the condition I described above taking any other approach is akin to relieving ones self of a number 1 in the wind.. again my opinion. I hope you can reply back sometime in the future and prove me wrong, best of luck!

BarnyardEngineering · Mar 14, 2022

After a few days? Try a few SECONDS!

Any time my Dad and I ever tried to mix ATF and acetone, they mixed like oil and water. No matter how much you shook the bottle, there would be globs of ATF swirling around in the acetone, and the moment you stopped shaking, the acetone sunk to the bottom and the ATF floated to the top. Shake it more, shake it harder, didn't matter.

ATF and acetone do NOT mix! Whoever came up with that idea is a sociopath, cackling gleefully as thousands of people fruitlessly shake bottles of ATF and acetone trying to get them to mix.

Bret4207 · Mar 14, 2022

(quoted from post at 09:37:35 03/14/22) After a few days? Try a few SECONDS!

Any time my Dad and I ever tried to mix ATF and acetone, they mixed like oil and water. No matter how much you shook the bottle, there would be globs of ATF swirling around in the acetone, and the moment you stopped shaking, the acetone sunk to the bottom and the ATF floated to the top. Shake it more, shake it harder, didn't matter.

ATF and acetone do NOT mix! Whoever came up with that idea is a sociopath, cackling gleefully as thousands of people fruitlessly shake bottles of ATF and acetone trying to get them to mix.

Huh. My ATF/Acetone mix sits in an opaque squirt bottle. I'll have to look as see, but it appears to be well mixed, like 2 stroke gas and oil. I'm going to have to put it in a glass jar now and check it. I've been using ATF/Acetone and ATF/any other solvent (gas/diesel/mineral spirits) for years with fantastic results.

TomA in CA · Mar 14, 2022

If there is moisture or water in the cylinder I have heard brake fluid will work.

I have an old AC WC that was on the ranch when we bought it 20 years ago. It was stuck then. I am going to try liquid CO2.

Phil-mar Farms · Mar 14, 2022

A spot of rust the size of a quarter across three rings will stick an engine tight. I have not been able to loosen an engine by soaking. I have had to drive the pistons down with a wooden block. Our blocks were made on a lathe with appropriate diameter and a cupped bottom. The cupped bottom puts the force on the piston walls not the head. If its a sleeve engine and more then one piston is stuck you will push the sleeve out with the other stuck piston. Some pieces of pipe fastened down with the head nuts will hold the sleeves down

I would like to hear from anyone that has used Evapo-rust to free an engine

Huskergreen · Mar 14, 2022

I understand that you pull the spark plugs on a gas engine to get oil on the piston, how to get the oil-mixture in the cylinders of a diesel engine? I know you can pull the injectors,but are there other ways? Thanks

gene bender · Mar 15, 2022

Take the plugs out and then look in to see if the cycl walls are rusted if they are you will not get the engine turned over with any snake oil as that measn the piston is probably rusted fast and the walls are probably junk

old · Mar 15, 2022

In a diesel you have to pull the injectors. I had a A/C XT190 that was locked up due to a bad injector pump seal and I pulled the injectors an fill the cylinder with turpentine. It freed up. But I forgot tot tighten the injector back down when it spun over and I had to go look in the grass for 2 or 3 of them

Hey Old, question about stuck engine.

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