Finally got my car all back together from swapping in my new Crane OEM replacement lifters and getting the parts of my old Comp Rs out.

So was lashing the valves today and noticed something. When tightening the nut down on the rocker, the pushrod will become tight and have no play. But at the same time the rocker has play in it, you can wiggle it side to side as it pivots on its bolt thing.

So is zero lash when the pushrod has no play, or the rocker arm has no play? And if it is when the pushrod has no play, is the rocker arm supposed to be able to move like that?

 

Zero lash is the precise point where there is no play between the pushrod ends at the lifter plunger and rocker cup. The point of no slack in other words.

 

So the rocker arm is supposed to be able to pivot around on the rocker stud?

 

Yes, it will move around a little. Even after you set the preload the lifter will begin to bleed down and the rocker might feel loose (when it is in fact adjusted correctly). You can read more about setting the valves on my Tech Page.

 

About the methods for lashing the valves by using the arrow on the crank pulley. How can you be sure the arrow is in the correct spot? There isnt any key or certain way the crank pulley has to go on, as long as the 3 bolt holes line up.

Or will it only bolt up if its in the correct position?

 

The pulley can only be mounted in one position on the hub, but the hub is not keyed to the crank. You can confirm the correct position by watching the valve movement.

 

Yeah i am also interested in how to confirm the position of the pulley on the hub by watching the valve movement. Is there anything on your site shoebox? Took mine off but like an *** i didnt mark it

 

Like you, I didn't know for absolute sure that my hub was on exactly right so I tried all 3 methods of adjustment. The most accurate for me was the 3rd listed on Shoebox's site where you watch the movement of the valves.

 

Is there any way to watch the valves if it's just one person?

Is a remote starter the best bet?

 

You would need a way to turn it over and watch at the same time. A remote start switch would work. If that is the name of it.

ZMAN

 

Just crank the motor over from the top side. There's clearance if you're standing on the driver side of the car and have the CAI removed. That's how I do it at least.

Remote start switch makes it WAY easier and more quick too.

 

I pulled the spark plugs and cranked it by hand on the crank bolt.

 

Just run a wire down to your purple wire on your starter and when you need to bump the motor over, just touch it to +12V...simple and effective

Cody

 

Thats a great idea, I'll have to try that.

 

Eh, a remote starter is only $13, so I might as well buy one and keep it this time.