Farmall Super C head bolt torque specs?

John_PA · Nov 14, 2008

I don't have a manual for the tractor, but was wondering if anyone on here might have one, and could tell me what the torque specs are for the head. If anyone can help with that, I am sure I could make up a torque sequence, going from years of experience tightening head bolts.

Oh, and another question... I got a thermostat from CNH, and it is just a round automotive looking thermostat. There are no provisions in the water neck to install it. The cylinder head might be from a Farmall C, and not a Super C. So, I might have the wrong thermostat for the water neck. Does anyone have pictures of the difference between them? How about just a general, "where does it go?" The waterneck is triangular. It's like putting a round peg in a triangular hole.

Thanks,
John

old · Nov 14, 2008

My book does not say any thing about the Super C but has the C. From what I can tell the torque is the same on both at 65ft/lbs
Hobby farm

Red Dave · Nov 14, 2008

On a Super C, the thermostat doesn't go between the head and the water outlet like a car engine.

It goes into the round end of the outlet and is held there between two rings that fit into grooves inside the outlet where the upper hose attaches. If I remember right, the upper water outlet on a C is different than the one from a Super C and do not interchange. The Super C is a larger diameter and comes out at a different angle because the radiator on a Super C is taller.

Are you sure that you have a Super C?

Anonymous-0 · Nov 14, 2008

The head bolt torque on a Super C is 80 ft/lbs.

Old manuals will say 65, but that was using old-stlye head gaskets. The modern ones require 80. This was revised back in the 1960's

Red Dave

Rnady in NE · Nov 14, 2008

If I'm not mistaken, they increased the torque specs to 80 ft-lbs. Start at the center and work outward and snug them down. Then keep increasing the torque and keep working from the center outwards until you get up to 80 ft-lbs. Remember to re-torque with the engine up to normal operating temperature. This means that you get to set the valves again.

John_PA · Nov 14, 2008

Dave,
Thanks for the info.

The tractor is a Farmall C according to the serial number, it would be a 1950. Going by casting dates(which are all "T" year code, which I assume is 1950, the engine casting date is X, which would make the engine a 1954. I would say that since the engine has 1954 casting dates, and step topped pistons and a 3.250" bore, I would say that it is a super C engine. However, the previous owner had replaced the cylinder head, and he didn't know that the block was not original to the tractor, and he could have installed a Farmall C head, and used the farmall C waterneck. So, I could have a farmall C waterneck and cylinder head. If so, where does the thermostat go?

Thanks,
John

Randy in NE · Nov 14, 2008

I misspelled my handle. Sorry about that.

If I'm not mistaken, they increased the torque specs to 80 ft-lbs. Start at the center and work outward and snug them down. Then keep increasing the torque and keep working from the center outwards until you get up to 80 ft-lbs. Remember to re-torque with the engine up to normal operating temperature. This means that you get to set the valves again.

Red Dave · Nov 14, 2008

It might not have one. C's didn't until later versions.

Does it have a water pump? If no water pump, it probably didn't have a thermostat.

Red Dave · Nov 14, 2008

That just came to me. If you have a straight "C" radiator, you must have a straight "C" upper water outlet.

Here is why: The Super C water outlet is 2-1/2 inches in diameter, (a "C" outlet is only 2 inches), and the wrong angle to mate up to a straight "C" radiator, because a Super C radiator is 2 inches taller than a "C" radiator.

I don't remember ever trying it, but I think that a "C" water outlet should bolt right up to a Super C head.

Jim Becker or Gene Bender could probably say for sure.

riverbend · Nov 14, 2008

If you removed the upper radiator hose, you could replace the thermostat. The thermostst sits on a step in the water neck. It is held in place by a large snap ring and a spacer (5/16" ?) Bend a strip of brass to make the spacer.

Greg

Dave 2N · Nov 14, 2008

80 ft. lbs, not 65 ft.lbs. "Experience has taught me..."

old · Nov 14, 2008

That means the I-T IH-8 manual is wrong then because that is where I got the info from. Oh by the way my manual is less then 10 years old

Anonymous-0 · Nov 15, 2008

You mite not have the rite upper cast piece goes from the block to the radiator as the one for the thermostat has a place for it. If you need that piece i do have one.

Anonymous-0 · Nov 15, 2008

You are correct the problem would be the hose with one size on the radiator and a larger one on the engine. Either one will bolt to the engine. Dont even need a thermostat any way.

Farmall Super C head bolt torque specs?

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