Farmall c valves adjustment

Hey guys, I can seem to find much information on adjusting the valves on the farmall c. There is no markings on the front pulley like on the Hs and up. I have the plugs out and can see each piston when it comes up to the top. Im going to adjust cold so I heard set the lash to .015 cold. My question is whats the procedure to adjust the lash? Ive heard you have to adjust based on the firing order. Can someone explain in detail how to properly adjust step by step? Do I have to put piston one at TDC based on looking through the spark plug hole, then adjust the intake and exhaust on #1, then turn the engine over and go to the next piston on the firing order and adjust that one ? So on and so forth

Put a piece of cotton in plug Hole #1. turn the crank until it blows out. Watch the piston come up to at or near TDC. The timing marks are on the front edge of the flywheel through a hole in the engine plate at the bottom of the tractor. They are not very clear!! Adjust #1 valves. Rotate the crank 180, then #3 cyl, then 180 rotation and #4, then 180 and #2. On compression TDC both valves are closed, allowing adjustment. Jim

(quoted from post at 07:14:47 05/03/22) Hey guys, I can seem to find much information on adjusting the valves on the farmall c. There is no markings on the front pulley like on the Hs and up. I have the plugs out and can see each piston when it comes up to the top. Im going to adjust cold so I heard set the lash to .015 cold. My question is whats the procedure to adjust the lash? Ive heard you have to adjust based on the firing order. Can someone explain in detail how to properly adjust step by step? Do I have to put piston one at TDC based on looking through the spark plug hole, then adjust the intake and exhaust on #1, then turn the engine over and go to the next piston on the firing order and adjust that one ? So on and so forth

Click to expand...

https://farmallcub.com/rudi_cub/www...ce Manuals/Valve Lash Adjusting Procedure.jpg

Official IH valve adjusting procedure.

So on this chart it seems to be showing the valve
numbers (1-8) as the #1 valve facing towards the gas
tank tank and the 8th valve facing towards the radiator.
To be clear the #1 cylinder would be the cylinder closest
to the radiator and the #4 cylinder would be closest to
then gas tank. But the #1 valve is closest to the gas tank
and the #8 valve is closest to the radiator?

(quoted from post at 08:58:26 05/03/22) So on this chart it seems to be showing the valve
numbers (1-8) as the #1 valve facing towards the gas
tank tank and the 8th valve facing towards the radiator.
To be clear the #1 cylinder would be the cylinder closest
to the radiator and the #4 cylinder would be closest to
then gas tank. But the #1 valve is closest to the gas tank
and the #8 valve is closest to the radiator?

Click to expand...

Starting at the left of the chart, the #1 cylinder is at the front of the cylinder head, nearest the radiator. #1 valve in the chart is the exhaust valve of the #1 cylinder, again, closest to the radiator.

#8 valve is the exhaust valve of the #4 cylinder, the rear-most valve and cylinder.

This post was edited by wore out on 05/03/2022 at 09:25 am.

Firing order is just the simple way to do it. Adjust both valves of cylinder that is at TDC in between compression and combustion stroke. Rotate crank the right way a half of turn, and move onto the next cylinder in firing order. Adjust those two valves.

Truth is, you can rotate the engine on any 4 cylinder, half way in between TDC and BDC, and adjust all the valves except one exhaust, and one intake. The two that are open. Rotate engine one full revolution, and adjust the two valves you didn't adjust before.
If you don't know where half way in between TDC and BDC is, watch valves as you are turning the engine. When valve is all the way down (open), you are at half way in between.

The whole TDC thing and following firing order, is to ensure that you are not adjusting a valve that is ever so slightly open, and not all the way closed.

Might as well continue to muddy up the subject, I knew
you would have at least three suggested methods. On
his chart by just thinking about it a bit you can tell
which cylinders they are suggesting. The top line for
4cyl. says at ..TDC of No. 1 piston on compression
stroke.. then it shows you are to adjust valves 1 & 2 but
neither valves 7 or 8 for cylinder 4. That tells you right
there your choice was wrong. Only the closed valves
are to be adjusted and if cylinder 4 was on
compression its valves would be closed. If you
installed your pistons thinking the rear cylinder is
number ONE, boy oh boy are your pistons going to be
confused, that thing will never run. Lol, even if you did
it will run fine. The only thing that will be confused is
the next person who pulls them out.

How about what you called the number 3 rod what did
you decide there? I went looking for my reply on your
valve adjustment and then find out you posted in both
topic sections again. You must like confusion!! I
personally would suggest you figure out which forum
you want to post questions about a subject tractor and
stay in that one. But, I cant make you do anything from
here. ; > )

I adjust the valves with the engine running. I have a tool that holds a socket wrench with a screwdriver in the center wit a knob on top. I guess it is an antique because engraved on side is PROPERTY OF WPA