They have to stay solid and the same all the way through the cycle.

IF ya buy solid rollers they HAVE to be EXACTLY the same length as the ones ya gonna run from the bottom of the pushrod cup to the tip of the roller.

It's easier to take apart the hyd and put a bolt in it.

 

What can be said about this:
http://www.carcraft.com/techarticles/116_0401_push/

The way I understand it all you do is hold the rocker down and shift it sided to side several times and read the marking at base circle. This apparently does not depress the lifter at least it did not when I tried it last night. The one marking was dead center of the valve stem which is still indicating a long rod.

Again I am scared to take the lifter apart, however I am trying to find a used OEM one.


Does this method hold any water?

 

I used an old OEM hydraulic lifter and used the method LR described. I wouldn't use that "side to side" method.

And yes, the mid-lift site would take quite a bit of reading.. I remember LR gave me the link and I spent 3 hours scratching my head LOL

 

Oh well thats great! So should I order a pair of Morel solid roller to measure for the Morel Hydrolics ??

 

Go down to your local machine shop, I'm sure they can sacrifice a lifter out of the junk bin you can clean up and make solid to the height you need.

Damn...35-40 years! You've been in the game a while eh?

Are you running Morel hydro lifters; is that why you want to buy a pair of Morel solids?

 

I just got my Morel lifters and pushrods lenght checker. Now I read and should I get a pair Morel solid lifters ??

 

That's an awful lot of money just for testing purposes...this may or not be a good idea, but it's a thought - can you bring one of your new lifters down to a machine shop, and have them make you up a solid lifter out of a junk lifter floating around? Have them measure up the height of your lifter, and re-create that height on a converted hydro lifter? Probably cheaper than buying a couple Morel's...

 

Yes its an idea, but OMG! I still couldn't understand why do we have to use solid lifters while measuring. Larryyyyyyy?

 

If you're not using a solid lifter, then when you're trying to measure, or, turn the engine for a contact pattern, a hydro lifter is pretty much going to compress, the spring inside the lifter, when you turn the engine over, and won't give you an accurate reading. Let me find a link to explain it better. When you're trying to find the proper pushrod length, you'll have your plunger in the lifter compressed. You then order a pushrod that is too long to compensate. Then, when you install them, turn the engine on, and the lifter is then pumped fully up, your pushrods are too long, and then your geometry is all off. I would guess (maybe not, correct me if I'm wrong, sounds right in my head) if you do it really bad your valve springs might bind too, or worse.

 

I agree with this completely, it makes sense that the lifter could compress and throw the setting off.

However acording to this method there is no compression of the lifter taking place. The way I understand it you paint the stem, place the rocker on the stud and spin the roller tip. I tried this and it made a beutiful line to work from.

http://www.carcraft.com/techarticles/116_0401_push/

 

That the part you're talking about? I believe that's where the guys above are saying they don't reccomend that lifter. That shows you where on the valve stem the rocker is making contact, but, doesn't give you the width of the rocker sweep across the valve tip, since you're not rotating the engine...which you'd need the solid lifter for...hehe

 

Correct!

This isn't that tough guys. Take a lifter and convert it. Worst case scenario get an LT1 OEM lifter from a parts store and convert it. Make SURE to keep the actual depth of the pushrod seat in mind, it changes from lifter to lifter (ie, comp OEM 850-16 lifters require a shorter pushrod than stock, the seat is shallower)

 

So I can use my comp R lifters to convert and then measure the height difference between that R lifters and Morels.

 

Yes
IF,IF they are the same length as the Morel-from the bottom of the pushrod cup to the bottom of the roller.

 

When converting the comp R to a solid lifter, Verify overall length by placing a pushrod into the morels and also placing a pushrod into the comp R. As long as the overall length is the same u can use this method to measure.