Stuck engine from sittin

dbernie · Mar 24, 2011

Greetings,
This subject has been covered a bit, but what have YOU had the best luck with for soakin the cylinders through the spark plug holes.
Gas engine.
Tranny fluid, penetrant, Marvel mystery oil, etc.
The oil is clean, thinkin the rings just stuck in cyls.
Wanna soak it a bit before I try barrin it over or draggin it and poppin it in gear. I can leave the plugs out so it doesn't hydraulic. Once it turns over, I can play with it from there. No hurry on it, either.
Any thoughts?
Much appreciated, Dan

usetob · Mar 24, 2011

it would help to know which tractor?

JMS/.MN · Mar 24, 2011

I think ATF or a 50-50 mix of ATF and acetone has a pretty good rep. Pulling it to unstick it runs the risk of bending pushrods. Pull the valve cover and rocker before doing that. Some like Kroil, MMO...but WD-40 is a joke. Diesel fuel not much better.

dbernie · Mar 24, 2011

Its a Case 830 Case-O-Matic Gas 6-cylinder.

On Edit--flyin belgian is correct, it is a 4 cylinder.
Don't know where my mind is at these days...lol

dbernie · Mar 24, 2011

Hadn't heard about the acetone with ATF.
Sounds worth a try.
Yes, kind of concerned about pulling it and breaking it loose--might really BREAK it loose, lol.
Thanks for pointing out the pushrod/rocker arm thing.
I believe I would have overlooked that.
Savin me problems already

Thanks, Dan

On Edit--not sure if I could pull it to break it loose with the Case-O-Matic, now that I think about it, oops...

Anonymous-0 · Mar 24, 2011

Freed a john deere D with Marvels oil and Spindal oil. Let it set for three weeks. Than made a 6 ft.bar that fit holes in fly wheel. Every day give it a tug . Broke free in about a week. For the next 4 or 5 days rocked back & forth going a little farther each day.

old · Mar 24, 2011

NEVER ever PULL one to pop it free things like to brake it you do. But first off you need to know why it locked up. If cylinders have water in then you can soak them till the end of the world and it will not free up because water is heavier then oil so you can not get to oil where it is needed. First off you need to have ALL cylinder empty of water/coolant then and only then can you fill with ATF etc. If not sure fill with alcohol and atf mix 50/50

flying belgian · Mar 24, 2011

Never heard of a 6 cylinder 830.

toolz · Mar 24, 2011

Hey dbernie- Drove through Bondville and seen you had the tractor out of there. With the valve covers off, you might take a hard plastic hammer and smack the top of each rocker arm at the valve end to see if any valves are stuck. Some penetrant down the guides might help. Hope you get it loose. Good luck...

Kevin in OK · Mar 25, 2011

We have an old 8n that became stuck. I was going to use ATF and acetone, but the store didn't have any acetone. I used a mixture of about 80% MMO and 20% engine oil. Whatever you use, pour it in and give it time. I was only able to try turning it over once every month or so, putting it in high gear and rocking the rear wheels. But after three or four months it was loose. If I were trying every day or once a week, it probably would have gone a lot quicker.

It sounds like you've got the most important part, time and patience. Best of luck to you.

Bob · Mar 25, 2011

"The oil is clean, thinkin the rings just stuck in cyls."

Yeah, RIGHT, the RINGS are stuck!

You have a 4" or 5" long (from top to bottom) piston that's rusted/stuck/varnished to the cylinder and you blame the 3 or 4 rings that TOGETHER don't contact 1" of the cylinder wall for it being stuck!

Good luck with THAT!

dbernie · Mar 25, 2011

Hey Bob--
My bad, poor choice of words, I should have said
"I HOPE the rings are just rusted to the cylinder walls"
Plan for the worst, Hope for the best, right?...LOL

Riverslim · Mar 25, 2011

Brake fluid

dbernie · Mar 25, 2011

Hey toolz--
The gearbox had quite a bit of water--it was froze up.
Recent warm weather thawed it, got over there Wednesday before it turned cold again.
Then had to get the brakes unlocked--they were rusted solid.
I'll do the valve thing while the cylinders are soakin.
Good idea.
--Dan

gitrib · Mar 25, 2011

Here is a link to a product we us all of te time. It really works wonders on looseing up rust. Can be purchased in Airsol can also.
gitrib
Rust Bomb

dbernie · Mar 25, 2011

flyin belgian--
You're right, don't know what I was thinking--
It is NOT a 6, it IS a 4 cylinder.
My Bad, what can I say?

Wilson · Mar 25, 2011

with plugs out valve rockers off so all valves closed weld pipe in old spark plug hook to another tractor hyd system . have made 2 so can rock pressure both ways has worked for me 3 times

greygoat · Mar 25, 2011

If you free up stuck pistons...I'd still worry
about rings sticking in the grooves, which
would make poor compression, blow by.It's a
lot more work, but if it was mine I'd take
the pan off and pull the pistons, (maybe after
they were loose?) and clean the ring grooves,
maybe a light honeing, or new rings ! "If you don't have time to do it right-
when will you have time to do it over?"

jackinok · Mar 25, 2011

very "LAST" ditch effort,after 50-50 mix of atf and acetone.rig you up a electrolosis setup.run a steel rod into plug hole making sure its insulated from head and piston.put ground to block and pos to rod.let it run no more than a couple hours max,maybe not even that long,as it will eat up aluminum piston if left too long.you'll have to suck out all other penetrants somehow first though.Ive done this on a couple with heads on,and have used it several times on one with the head off on engines where pistons,head gaskets and things were not available and I didnt want to drive them out with sledge.I work on a lot of engines and things for folks that they dont want restored just running for a display or something.The best commercial penetrant Ive personally ever used,is a product called "break free".plumbing supply store here is the only place ive found it.

Mike Bock · Mar 25, 2011

plan on rebuild

dbernie · Mar 26, 2011

Hey Mike Bock,
"Plan on rebuild"

You are correct, just hopin I can get it unstuck, maybe fired, then evaluate it and go from there. To do it right, I'd just tear into it right off the bat. Just hopin I can hear it, at least turn it over and listen, before rippin it apart. If the stars are aligned right, I'm holdin my tongue right, and say some prayers I COULD get lucky, but doubtful.
Again, Plan for the worst, hope for the best...LOL
Thanks, Dan

Stuck engine from sittin

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