Need help Lashing Valves 460 diesel

I have a Farmall IH 460 diesel that I need to Lash the valves. I have the data to lash them to, but not sure how to do it. Can someone please walk me through the steps on how to lash valves? Just for fun, lets say I've never done this before, ever!
Thanks,
Tod Michigan

I do it this way others do a different system. It must be set cold first, so setting it twice (or once) is normal
Set the intake valve on cylinder #1 (Front) when its exhaust valve just starts to open.
Set the intake when the exhaust just closes.
This is the two positions that can be seen on each cylinder to be as far away from a lobe on the cam as possible while still knowing where it is.
The order is (front to back EI-IE-EI-IE-EI-IE)
Look at #1 valves, Turn the engine till the intake just starts to begin opening (moves) then adjust the exhaust valve. Rotate more until the exhaust just closes (just stops moving after having been open) and adjust the intake. Treat every cylinder (pair of valves shown above the same way, remembering they switch places between cylinders) I put a rag over the ones I have done to keep track of progress, and avoid mixing what I am looking at. Jim

The adjustment is important as well. The feel of a feeler gauge is critical. The tension on the feeler as it is pulled out from between the tip of the valve, and the rocker arm has two components, the first is the flatness of the gauge between the surfaces. such that the blade is ferr to find the least thickness, pinched gently, not at some non flat angle.
The second is the tension as it is pushed and pulled through the gap. If you pinched a 1 foot steel shop ruler between your fingers hard enough to pick it up and have it dangle from one end, that tension is the same as the push pull feel on the blade.
The tip of the rocker arm is often cup shaped and worn from pushing and sliding on the valve.
If it is cup shaped and the gauge blade cannot be flat across the surface, the rocker tips will need to be arced on a valve machining tool. Usually they are OK, but I have seen tips with .008 wear that prevents clean adjustment.
Jim

An easier way to adjust all the valves is to turn the engine until the # 1 cylinder is on TDC. Adjust valves 1,2,3,5,7,and 9. Turn the crankshaft on complete turn until you are on TDC for # 6 cylinder. Adjust valves 4, 6, 8, 10, 11, and 12.

Unlike the other IH six cylinder diesel engines, the valve order for the 460 type engines is E-I-I-E-E-I-I-E-E-I-I-E.

It's easy.

Just work methodically, and carefully.

As janicholson pointed out, you need to adjust the valves when they're on the "flat" section of the cam. In other words, when the cam isn't pushing on the push rod at all - the push rod should be loose, and the valve spring should have the valve tightly closed.

All you need to do is loosen the locking nut and then turn the adjusting screw in or out till the feeler guage fits between the rocker arm and the valve stem.

If your valves need adjusting, don't be surprised if the guage doesn't fit in at first - just turn the screw until it does.

Then just tighten the screw until the guage pulls in and out with some resistance, and just "feels right". Not loose, but not pinched.

At that perfect spot, hold the screw in place with the screw driver while you tighten the locking nut back down.

Then move on to the next one. (you'll have to keep cranking the engine to get each cylinder's valves into position)

If you find you're turning a screw in or out more than a turn or two, you're probably doing something very wrong, and should stop and recheck that you're doing the right valve.

Since it's the first time you've done it - you'll want to go back and check your work - probably several times. Just crank the engine a few times and check them all again.

Also as janicholson mentioned - it's very important to have the feeler guage FLAT - it sounds obvious, but it's less obvious when you're actually doing it. It's surprising how easy it is to lift or twist it a bit, throwing off the measurement. So do pay attention to it. move the guage around, back and forth, get a feel for what's right.

Only other tip I can think of is to press down on the back of the rocker arm (against the push rod) when sliding the feeler guage in - somtimes there's some give there, and you want to make sure the rocker arm is fully in the "up" position before trying to loosen it to fit the guage.