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Here are my valves. Now what?

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Mike CA

11-11-2007 14:00:08

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I got the cover off and managed to save the gasket which is in pretty good shape as far as I can tell. So, below you can see what I'm looking at. As far as I can tell it's pretty clean in there. I took the H out of gear and hooked up the hand crank and started spinning, watching the valves. They all work.

So, now what? Lube them? Check for adjustment? Where do I lube? What do I check?

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Mike Farmer

11-13-2007 12:02:54

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Hi. I was taught that the valve adjusting sequence on a four cylinder engines is worked by the figure 9. Turn the engine till the No1 valve is fully open (fully depressed) and adjust No8. Turn until No2 is fully open and adjust No7 and so on. Some of the older service manuals still give this advice. I must say I surely wish I found one as clean as that occasionally.Incidently somewhere I have the sequence written down for 6 and 8 cylinders but no idea where. Enjoy it whatever MTF

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Mike CA

11-12-2007 19:15:04

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Well, I don't think I got the right kind of feeler. I got a spark plug gap feeler gauge which is round and only goes down to 0.20. So it didn't quite fit into the gap corretly, so I had no way of telling what the distance was.

I'm going to trust that it was done correctly, and not make anything worse by screwing with it. So I buttoned it up. On to further parts installation and eventually firing the old boy up!
I kept the instructions to adjust the valve clearance. But if I have to do it, I'm going to find some expereinced help.

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Mike CA

11-11-2007 22:38:02

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Wardner said: Have you thought about chroming the rockers?

hmmm

Do they check for that at shows? It sounds like a good idea, just to be safe. I'll tear it down tomorrow.

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Wardner

11-11-2007 22:11:39

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

"Now what"

Have you thought about chroming the rockers? I think that is the only way to improve their appearance.

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PaulW_NJ

11-11-2007 19:52:11

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Mike

I thought I'd give you a reference point. This is what I found when I pulled the valve cover off the International 240 Utility I bought 6 months ago. I knew it was running kind of rough, but . . .

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ScottyHOMEy

11-11-2007 20:08:28

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Re: Here are my valves. Now what? in reply to PaulW_NJ, 11-11-2007 19:52:11

You ai't foolin' me a bit with the shiny parts! r is that the light reflecting off the grease.

Yessir, that musta been a project. That pushrod leanin' off toward sawyers looks pretty sad.

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Bob Kerr

11-11-2007 20:03:47

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Re: Here are my valves. Now what? in reply to PaulW_NJ, 11-11-2007 19:52:11

WoW Paul!That is bad! I used to work with a guy who would get "frustrated" and if things didn"t go right, he would generally use a sledge hammer. Looks like he adjusted the valves on that one!

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Bob Kerr

11-11-2007 19:16:09

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Mike, I agreee with Goerge. It looks great in there! Bolt her back up and if it has a miss later, then worry about the valves. They may just be fine the way they are. if you do oil it just put a couple drops on the top grove of the rocker arm.

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georgeky

11-11-2007 19:01:32

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Put that thing back together and start it. You are going to worry yourself to death with all this. That tractor just needs clean fuel and a hot battery. If it aint stuck, gets gas and fire it will run.

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skk-big red fan

11-11-2007 18:11:17

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

I think you have too much time on your hands. :)

Would you like me to email you a copy of the Official IH adjustment chart?

Head looks real good!

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Mike CA

11-11-2007 17:29:59

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

NDS said: No way engine has been run much since it was cleaned up and probaly overhauled. Have seen under a lot of old Farmall valve covers and yours is about as clean as they come.

If I have the history right, the engine was overhauled in the early 80's, around '83. The tractor stopped running early to mid '90's because the tank sealant leaked into the sediment bowl and blocked it. The spark plugs looked black and nasty, probably from burning that sealant.
As far as how much it ran? It was just a show toy after being overhauled. So, little if no work. Just shows and parades. I'm trying to resurect it from the dead to let it do that "work" again.

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NDS

11-11-2007 17:21:38

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

No way engine has been run much since it was cleaned up and probaly overhauled. Have seen under a lot of old Farmall valve covers and yours is about as clean as they come.

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Maark

11-11-2007 17:08:39

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

I should have said, If the pistons are at top dead center, your valves will be closed and you will have a little play in your rocker arms.

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Maark

11-11-2007 17:06:14

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

You will measure them where the rocker arm touches the valve. [just above the spring on the left side of your motor.] If you wiggle your rocker arms, you will notice a little play. That is your valve clearance.

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Mike CA

11-11-2007 16:50:19

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Sounds good Jim.

I have one question about something I'm not understanding:

"...put your feeler gauge between the top of the valve stem and the bottom of the rocker arm/ Turn the adjuster bolt until the clearance is snug on the feeler gauge..."

I'm not sure where this adjustment is measured. The nut is on the valve rod on the right side of the engine, correct? So that is the valvle stem with the springs on the left side of the engine? If so, then the above statement is confusing me. Where do I measure the .20 gap?

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Janicholson

11-12-2007 18:37:01

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 16:50:19

Sorry about the late reply, YT was down today for hours (at least here in MN).
The feeler goes between the top of the valve (above the spring, and under the tip of the rocker arm) The pressure on the feeler when it is correct is the same as pulling a popsickle stick out from under a peanut butter jar. Not much, but make sure the gauge is flat between the parts. Kinda like playing Jinga the wood block game, keep the feeler flat to the gap.
JimN

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Janicholson

11-11-2007 15:28:43

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Mike Here is is the easy way to assure you are getting the valves adjusted correctly::::(this trick works for every four cycle engine with any number of cylinders. It also positions the valves at known positions that are on the base circle of the cam, and not in an unknown position.

They are arranged From front to back: #1Exhaust, Intake,-----#2Intake, Exhaust,----- #3Exhaust, Intake,----- #4Intake, Exhaust.

Make a chart of the valves EI-IE-EI-IE on paper to take with to the engine.

When the exhaust valve just begins to open, adjust the intake on that cylinder. When the intake just closes, adjust the exhaust on that cylinder.

Make sure you treat one cylinder at a time (lay rags over the other valves on the other cylinder's so there is no error)

I think they are set at .020" cold.

Crank it by hand with the plugs out, it makes it easy.

Before starting, do the oilcan trick I described in the last post. and do not oil the valves, they are fine!!! JimN

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Yugrotcart

11-11-2007 15:28:26

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

Mike,
Valve clearance, both intake and exhaust, should be.017 hot or .020 cold.

Paul

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Mike CA

11-11-2007 14:35:36

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

I don't know if anything is wrong or not. The tractor hasn't run in close to 10 years, so I pulled the cover to give it a look see. Mainly because some folks had concern that there may be a lot of old sludge in there. But as you can see, it's pretty clean as far as I can tell.
I'll have to look up the clearance for the valves before I check it. But I'll give that a shot.

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FARMALL PULLER

11-11-2007 14:25:45

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Re: Here are my valves. Now what? in reply to Mike CA, 11-11-2007 14:00:08

I guess I got in late on the forum. What is the problem with the valve train? They should oil thier selves when the tractor is running. You can adjust them by turning the engine slow until you get both valves closed on a cylander and get a feeler gauge and loosen the nut on that rocker arm, put your feeler gauge between the top of the valve stem and the bottom of the rocker arm/ Turn the adjuster bolt until the clearance is snug on the feeler gauge, not tight, then tighten the nut on top. Recheck clearance. Move on to the other cylanders that are closed or turn your engine until you get another cylander closed.

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