Is this normal? Look at the marks of rocker arms.

its centered.



This is different cylinder and its downside of center



And also I saw this, it is not centered??

 

Are those markings from some sort of pin or is that an impression on the valve stem?
If those aren't your markings then no that is not normal by any means. Can you feel any indentation on the valve stems or feel any impressinos on the roller tip w/ your fingernail? It's possible your rockers are slapping the valve stems.
Have you checked the roller tips to see if they have any play in them or if they roll freely?
Need more info.

 

I will change my Comp R's to Morels, so I took off the valve covers to measure the new pushrods lenght required. When I took off the rocker arms I saw the marks aren't the same and also I saw third picture. So there are 2 problems. 1 and 2 pictures, and 3 picture.
What could be the problem??? Why marks are centered for a cylinder and not centered for another cylinder??? My pushrods are the same height (7.400")

 

The geometry doesn't look bad, but those impressions are no bueno. It is quite possible now the valve stems will mushroom. IF those are impressions then it'd be a good idea to put some lash caps on those stems. If you don't then the stems will eventually mushroom. If they are just marks then you may have caught it in time before any more damage can be done.
Judging by those markings either the valve train is not adjusted correctly and/or you may have some valve float issues. For starters I would check the spring pressures on those valves that have been marked up to see if they're still to spec.

 

Engine is just built by Thunder, so I don't want to believe that. My springs pressure are a bit too much. ~190lbs close and ~460lbs open. For that reason I wanted to replace the Morels, but now I don't know what should I do. I checked for the 1 cylinder and 7.200" is good lenght, but for another cylinder 7.200" may be short.

 

Well those markings are caused some sort of slack in the valve train somewhere.

 

You see the second picture left one ? The marking is at only right side. What is this supposed to mean?

 

That there is more pressure on one side of the valve stem than the other. I'm thinking this could be caused by narrow guide plates assuming you have them. These narrower guide plates cause the rocker to sit a bit cockeyed on the valve stem. It really isn't a problem if the valve train is healthy.
I really can't form a concrete opinion on what happened w/out seeing it for myself.
If it's a thuder racing motor then it would be a good idea to get them involved.

 

b/c thunder racing never makes mistakes

Morel lifters? How is a different lifter going to compensate for a bad decision in spring selection? What obscene hydro cam are you running that would require 460# over the nose?

What engine work was done? Machining? Also do as SS RRR said and check the pushrods for odd wear.

 

My guess is that you need the same length pushrod, just like any other motor. But the rockers being out of adjustment is the problem.

 

The springs came with heads (AFR 210cc comp.) This heads for solid roller setup, so springs are for solid roller. Thunder adjusted them, but there is also a lot of pressure. I will not change the springs, so Morel lifters is the only way to go.

its a 383.

I took off all rocker arms and there are at least 8 rocker arms like third picture. I mean its not the rockers' fault. I know Comp R's wants 1/16 or max 1/8 preload after zero lash. But when I took off the rockers I saw the preload was adjusted 5/8 Could be the reason of the third picture???

thanks for the help I appreatiate it

 

Thats not a problem??? If not I will take a deep breath and be relax.


Guide Plates are AFR, so I don't think the problem is them.

 

Didn't say your valvetrain was healthy.
Are they adjustable guide plates? If not then at least check to see if your rockers are sitting straight or if they sit at a slight angle between the rocker stud to valve stem. No need to readjust it. Just set the rocker down on the stud and place the pushrod in the cup.

 

Describe healty, so I can tell you it is or it is not

As I said the engine is built by Thunder, they are pro, I don't think they did a mistake, but it is possible too, thats because it called "mistake".

Everything looks normal. Rockers are sitting straight. Is there any possibility to be a mistake with valve angle? I mean for the third picture, that would be because of valve angle fault?

sorry for my bad spelling

 

Well, of course, I don't know, but how do you know that your push rod length was correct to begin with----was the required length measured correctly? Obviously you are not using stock length, so there must be a reason why you are not using stock.