I just got my set of 200cc Iron Lightning Pro Topline heads and I know I'll need new rods.

As for a pushrod checker I understand which one to get and how it operates, however, I havn't seen anything adressed about how far down to tighten the rockerarm when checking?

That's the only thing that is confusing me!?

 

where did you get the pushrod checker and what kind is it? I'm pretty sure you just tighten it down till you get zero lash.

 

I havn't gotten the checker yet
...

It will be one from Summit, Comp Hi Tech checker.

They come in like 5 different lengths, so I have to put the heads on and guess what kind of a length difference my 7.794" stock rods has in comparison, then order the checker.

Just trying to learn how do check so when everything gets here I can get to it. Just waiting for my head gaskets to arrive now.

I'm confused because you can tighten the rocker down, and you can adjust the pushrod length with the checker. So one of them has to be at a set length or whatever....?

 

Get yourself a solid lifter while you're at it. IT makes it much easier.

You put the lifter in, put the adjustable push rod in with it preset to some convenient length (7.800" for example), and observe the contact pattern. Then adjust the push rod .050" one way or the other, and re-observe the pattern. If it gets better, go farther the same way; if it gets worse, adjust it the other way; keep doing it until you get the best pattern.

Comp's catalog tells you what to look for; I think it's on p 278 & 279 of their catalog, which is available on their web site.

 

Gotcha. That makes more sense. I just wasn't sure if you set the rocker to a certain height and then adjusted the pushrod only or what.

Hydraulic lifters have 2 full turns of play in the adjusting plunger... so if I get to zero lash, make a full turn, I should be in the center of the plunger zone. Then watch the wear pattern. Should be good to go yes?

I am horrible at finding zero lash though.

Thanks for the info!