Valve spring bind tolerance values pls?

[70Hardtop]

BTW, ignore that second photo, that adjuster will change position when I use better and more correct springs!

Have attached some info from the CC website, directly inline with what RustyCow was saying. This is info I did not know about until now, so it is good to know when installing a high lift cam

 

[nm9stheham]

BTW, ignore that second photo, that adjuster will change position when I use better and more correct springs!

Mmmmmm... it is only set by the valve length and valve seat position on the valve side.... you could put in springs from a retractable ball point pen and it won't change LOL. Plus the rockers and pushrods and lifters on the other side. The valve shims and retainers set the spring height, not the valve height.

It may be nothing.... I'm just pointing out that this looks out of the ordinary, and understanding why would be a good idea.

 

[70Hardtop]

Mmmmmm... it is only set by the valve length and valve seat position on the valve side.... you could put in springs from a retractable ball point pen and it won't change LOL. Plus the rockers and pushrods and lifters on the other side. The valve shims and retainers set the spring height, not the valve height.

Ok, correct...I wrote that at 3.40 in the morning, I was probably meaning the whole valve train when it gets sorted, including pushrods. I am ordering an adjustable pushrod today and will be much easier to set up the ideal geometry.

[/QUOTE="nm9stheham,"]It may be nothing.... I'm just pointing out that this looks out of the ordinary, and understanding why would be a good idea. [/QUOTE]

Not sure what you mean - of course it's "out of the ordinary" as I explained in last post. I was only checking and concentrating on one single valve at that time to get a rough idea of that spring, hence this whole meandering thread. Obviously I have barely begun to look at other things and may even have to get the heads (valve spring seat) machined for the correct dual springs that I have for this cam.

I think I should stop this thread now as my question has been answered and I have made the decision.

Thanks to all.

 

[rustycowll69]

it's not so much how much thread is sticking out of the top, it really is how much thread is sticking out of the bottom of the rocker. I believe the old Mopar Racing Manual used to recommend no more than 1-1/2 thread protruding from the bottom of the rocker. Of course, you also need to have clearance between the top edge of the pushrod cup and the bottom side of the rocker arm, while the lifter is on the cam base circle AND at full lift, too. It looks pretty close in that last pic with the arrow pointing at it.
I bet you've had enough comments for awhile, LOL.