Diagnose broken rocker

[priobe]

lineslinger,

Yes those are Dove.

Bobcat,

I am not doubting that the adjustment maybe to small but I do not see any markings on the rocker (see 2nd photo)

3rd phot phot shows lift.

I will double check.

These are Smith brothers push rods. When speaking to Dove they almost sounded like they did not prefer the smith brothers push roids.

Should I be using differnt push rods?

Also, how can I verify that I have the correct length push rods.

[Jac Mac]

These rockers were heading in same direction, in this case relief around adjuster screw/pushrod clearance had not been fully machined & cup of pushrod was milling its own clearance requirements.

[Ron61]

I used those type of rockers in my car and never had a problem. It may be because the engine builder cut the push rods to fit the rockers and made sure everything was perfect before he did the dyno tests. That was in 1997 and the engine is still as good as it was then and I did run it hard on the track and around the mountains before I had to sell it.

Ron

[priobe]

Anthony,

These are the HD version, my pockets is still feeling it.

As I looked closer at the rocker there is a c shaped indention in the rocker.

How can I measure the distance that is needed to check if I need to replace all the push rods.

Also, if I need to change the push rods what brand should I go with?

The push rods are smith brothers.

Or can I machine down the cup to allow clearance?

[Anthony]

Originally Posted by priobe

As I looked closer at the rocker there is a c shaped indention in the rocker.

How can I measure the distance that is needed to check if I need to replace all the push rods.

Also, if I need to change the push rods what brand should I go with?

The push rods are smith brothers.

Or can I machine down the cup to allow clearance?

I don't know if the c-shaped impression from the edge of the pushrod cup is the culprit or not. As you have, I had thought of options of getting shorter pushrods, clearancing the rocker arms with a grinder, grinding the lips of the cups of the pushrods, changing to new rockers.

I feel your pain.