Many questions about my new M

kennell · Mar 31, 2012

Wondering which seat is correct for a 47 M?
Is the front bar on the wide front end supposed to be straight?
I changed the iol and gear oil in the rear end and went to put a new fan belt on and found out the M's seized. What is the best thing to shoot in the spark plug holes? PB Blaster? ATF? Would it hurt anything to take it for a tow in 5th gear behind my 766? Thanks Kent

Zachary Hoyt · Mar 31, 2012

I don't know about the wide front.
Don't tow it, you'll break something or bend a rod and be in worse shape than you are now.
The pipe seat is the IH seat, the one with the spring and shock is a Monroe aftermarket seat. I have been told that IH went to the Monroe for new Hs at some point in the later forties, but I do not know about the M.
Zach

mkirsch · Mar 31, 2012

That "front bar" is called a tie rod, and it's supposed to be straight. Looks like someone rammed something with it.

There are 100's of magic potions for freeing up an engine. Everyone has a favorite. They all work, or don't, depending on how bad things are in there. Just don't expect miracles. It could take days, weeks, months, or never.

Do NOT pull the tractor behind your 766 in an attempt to free up the engine. You WILL bend connecting rods, and probably break the crank.

Bob M · Mar 31, 2012

- The tie rod is supposed to be straight. (It's very unusual to find one that's NOT been bent a few times!).

- The seat is was a factory option after serial #9287. I believe yours was made by Monroe from the factory as Zach mentions.

- If you want to pull the tractor to move it a short distance (a few miles), and it rolls freely with the transmission in neutral, that's OK. But DO NOT try tow it to try to loosen the engine - you risk breaking expensive parts inside the the engine. There are many better (safer) methods to loosen up an engine.

kennell · Mar 31, 2012

OK thanks for the info. What should i do to loosen this engine? Should i spray PB Blaster in the cylinders through the spark plug holes? Thanks Kent

Anonymous-0 · Mar 31, 2012

Take the plugs out and soak the engine for a few days. Bump the engine by rocking the back wheels by hand in 5th gear. If it breaks loose this will help tell you what you've got.

Dblair · Mar 31, 2012

take the engine apart if it's frozen. to much to mess up the other ways .

formerly ny bill · Mar 31, 2012

i mixed pb blaster and marvel mystery oil about 3:1 for a C that was slightly set up (about 6 mos worth). loosened it overnight.
in the past, i have taken off the rocker arms and gutted a spark plug and put an air chuck in the top so i could push the mix down through the rings. tread lightly with the air pressure, and be forewarned that when the thing breaks loose, you will "paint" anything in the way of the open spark plug holes, including the far shop wall.

SDE · Mar 31, 2012

1. Drain engine oil
2. Put a 1/4 of a quart of Automatic Transmission Fluid in each cyclinder
3.Leave the drain plug out and put a bucket under the drain
4. return two weeks later. Is the whole quart in the bucket. If not it is still stuck.
5.Jack one rear wheel off the ground. Block the other. Put tranny in high gear. Try to turn the rear wheel.
Steve

ken house · Mar 31, 2012

to help free the engine, remove spark plugs, take compressed air and blow out cylinders; because if there is any water in the cylinders, the penetrants will not get to the sticky part. oil floats on water.

S2710 · Mar 31, 2012

To loosen engin take the plugs out and fill the cyl. with a 50-50 mix of ATF and acidtone. Then jack the rear wheels up off the ground and put the trans. in 5 gear and set it on ramps so that when the motor loosens up it will roll backwards down the ramps. When the tractor is setting on the ground the motor is loose.

Bob

El Toro · Mar 31, 2012

Do not pull it as you may damage something in the drive train. If the engine has been stuck for a long time you probably need to tear the engine down. Pull the head, drain the oil pan and see how much water in there then remove the oil pan. If ATF won't free the engine you can try pouring some diesel fuel on top of one piston and set it on fire. Make sure the tractor is away from any building and anything flammable is removed from the tractor near the engine. Do one cylinder at a time and have the rod cap off the connnecting rod that's connected to the piston you're heating. Then use a piece of 2 X 2 oak and a big hammer to try and drive out the piston by using that oak against the connecting rod. The heat should free the piston. Hal

Dougct · Mar 31, 2012

I'm with Todd on this,it's easy and you won't lose your eye or catch on fire!And if that doesn't work then you can try something else,good luck

pete 23 · Mar 31, 2012

Take the starter off and use a pry bar on the flywheel ring gear. This will tell you how tight it really is and if it will turn all through a couple complete revolutions. This way you won't damage anything if you go easy. May have stuck valves and have to remove valve cover to free them up. Only one right way of course is to tear it all down but often times you can get by this way. Just put some oil in cylinders. No magic formulas. If the rings are sticky or stuck it will take running a while to free them or like I said, tear down. Of course you want clean oil in crankcase.

kennell · Mar 31, 2012

Thanks Guys for your ideas. I put a can of PB Blaster in the cylinders this afternoon. I blew compressed air into the cylinders through the spark plug holes and ice balls came out of 1 cylinder. I'll give the blaster a few days and see what happens. If that doesn't work i'll pull the head and go from there. Thanks Kent

CenTex Farmall · Mar 31, 2012

What everyone else said, and.......

With the plugs out and the hood off, take a bright flashlight and shine in the spark plug holes. When the ambient light is dim you can see the cylinder walls and see if they show signs of surface rust or if one or more is worse than the others.

If the plugs don't show corrosion and the walls look fairly smooth it's probably just a light stick and will come loose with the PB blaster.

I have a 2 foot crescent that I can open up and get a bite on the crank pins on the end of the crankshaft. That's another way to put some pressure on things.

If the crank moves slightly back and forth, taking up bearing play, then that's a good sign.

Most definatly drop the oil pan!

Many questions about my new M

kennell

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Zachary Hoyt

Well-known Member

mkirsch

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Bob M

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kennell

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Anonymous-0

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Dblair

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formerly ny bill

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SDE

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ken house

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S2710

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El Toro

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Dougct

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pete 23

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kennell

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CenTex Farmall

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