Farmall Super C Seized Engine

[TommyJD790]

I got my Super C home the other night after a few hours of wrestling it out of an overgrown field.

Today, I started the process of getting the engine runnning and ran into a number of things I was hoping I wouldn't have to deal with. Oh well, such is life.

The tractor was sitting in the field for the past few years and didn't have any exhaust on it. It did have a coffee can covering the hole in the hood, but that was it. Apparently water got in. Not surprised.
The manifold had a lot of scaley rust in it, and the threads that the muffler pipe should thread into, are completely shot, so I will most likely replace the manifold.
With the manifold off, I dumped a little mystery oil in the intake and exhaust ports.
Then I pulled the plugs. They were really stuck in there, but I carefully removed them without damaging the threads in the block. I dumped a little mystery oil in there too.
Then with the plugs out and the manifold off, I tried to hand crank the engine. Wouldn't budge. I put some pretty good torque on it, but still nothing.
So I figured I had a seized engine and I would check the oil. I couldn't find a dipstick, but found something on the side of the oil pan. This was some kind of plug, and I unscrewed it. Water came from this plug for about 2 minutes. It seemed like a lot of water.
So, what is this plug for ??? Is water supposed to come out of it ???

I attached a couple pictures.

Tomorrow I'll drain the oil and pull the pan. I don't really want to pull the head if I don't have to, but I'm sure that's where I'm heading next.

Also if anyone has any tips on unsticking a seized motor, I'd appreciate it.

Tommy-

 

[MIKE R]

Sounds like you are on the right track. That valve I the picture with water coming out of it is the oil dipstick. You open the plug when you are filling with oil until it runs out, then the oil level is at full. If you take out the lower plug and nothing comes out you need to add more oil as that is the low level. To unstuck a engine I would recommend pulling the head and filling each with a oil of your choice. Next get a block of wood that fits snugly into the cylinder (sits flat across the entire piston head up to the cylinder walls) and every day for probably two weeks give it a hit with a hammer in each cylinder then add more oil. Good luck and have fun. I am sure others have different methods so lets hope they chime in.

 

[Ken]

If the water is running out the full oil level plug so the pan is full and means the crank oil pump the timing gears main bearings rod bearing have been soaking in water for long time.
This is a easy to repaire engine instead of doing damage plan on rebuild will be doing the same anyways.
ken

 

[DJ54]

With that much water, and your location, I'd guess the sleeves are cracked. Hopefully the block is not cracked. Check the block for an external, horizontal crack, just above the level where the carb attaches to the manifold on both sides. Most I've seen seem to crack on the carb side. Then, when you remove the head, check the block for cracks between the sleeves. I've seen a couple of those too.

Definitely needs to be taken down, and brought back up.

 

[AKwelder]

I have seen the engines drained, filled with penetrating oil of some sort, one old timer swears by Howes diesels additive,and then working on it every couple nights.

Don't forget to check the oil in the gear case, if you have water in the engine the tranny is most in question

If you get into a rebuild, the sleeves and kit are out there,


Good luck

 

[BobG_in_VA]

Drain the oil, pull the pan, pull the head, put about 1 inch of Automatic Trans Fluid (ATF) in each cly...let sit, in the meantime, check the the lower end for rust/corrosion, etc...sounds like the water was at least 6" deep in the pan. You can also drain the trans...big screw in nut on the bottom of the differential...probably has never been changed...be prepared for a bunch of water, followed by globs of stuff resembling tar balls...let it set and drain overnight...PS: if its in gear and you put your foot on the clutch, can you move the tractor? ie. has the clutch frozen up to the flywheel? BobG in VA

 

[TommyJD790]

With the clutch in, the tractor will roll fine.

Today I pulled the head and pulled the oil pan. The parts don't look too bad.
I coated them all with WD40 and put more mystery oil in the cylinders.
Had a few stuck valves too, so i pulled them, cleaned them up and put them back in.
I'll try the automatic tranny fluid.

How long should I let it sit. ??

I was thinking I need to pull the crank out of it and free up one cylinder at a time, but there is a lot of other things to dis-assemble before I can get it out.

This is turning into more work than I wanted.

Tommy-

 

[mad_planter]

I'd pull the head and work on it in two halves. There's a good chance the valves are stuck and pulling the head may allow you to get the rest turning freely.

With the clutch in, the tractor will roll fine.

Today I pulled the head and pulled the oil pan. The parts don't look too bad.
I coated them all with WD40 and put more mystery oil in the cylinders.
Had a few stuck valves too, so i pulled them, cleaned them up and put them back in.
I'll try the automatic tranny fluid.

How long should I let it sit. ??

I was thinking I need to pull the crank out of it and free up one cylinder at a time, but there is a lot of other things to dis-assemble before I can get it out.

This is turning into more work than I wanted.

Tommy-

 

[TommyJD790]

Well after a couple weeks of soaking, I could see than these pistons were not going to free up while connected to the crank.
As soon as I pulled the crank, 2 pistons easily just tapped out.
The other 2 took a bit more persuation, but I got'em.
One of the pistons is busted, but I found one on e-pay.
I honed the cylinder sleeves and they look nice. Time for re-assembly.

Tommy-

 

[DJ54]

You want to take a real close look at those sleeves, and look for a vertical dark streak, ie: crack. Usually front, or back of sleeve, inline with crank.

New rings..??

Just hate to see someone do all that work, and have to do it all over again...