I don't know. Dwayne thought it was likely a problem right from breakin or lack of oiling due to pushrod length. It's the last rocker to get oil and it was maybe not primed properly. Thus starved of oil and potentially no oil in that rocket and the adjuster heated up etc etc

Buy a set of the good adjusters from Manton, CBR 951-245-6565

It would appear from the rocker pics that some measuring is in order.

The springs were set up to be used with your cam and 1.5 rockers.
By the looks of those rockers they are 1.6's, and HS 1.6's are usually closer to 1.65.

You'll need to measure the lift at the valve to see where you're at.
If the rockers are indeed 1.6's, and check out as such..... You'll likely need different springs.

The springs are rated for .680 lift, but even if you are right at that, with the added velocity that comes with the higher ratio, along with the boost being a bit higher than was the original plan, you'll probably need more spring pressure to keep everything under control.

First step, measure the actual lift at the valve.

Also, IMO, the pushrods are def too long.

I would want the threads of the adjuster under the rocker to look like they do now on the worn adjuster.

zeroed it out and measured

And??

Can't tell anything from that pic.......the valve is closed.

You need to have the indicator compressed about .800 or so when the valve is closed, zero out the pointer........turn the motor over until you reach max lift, counting the revolutions of the pointer along the way.

He zeroed at max lift...

Okay.....and from what number on the .100 counter? (since its sitting at the .400/.900 mark in the pic)

If you "assume" the pic is supposed to be pointing out that the lift is .X72", then is it .472? .572? .672? .772?
Since the rockers look to be 1.6's, we can again "assume", then it should be .672.
If that's with the valves still set to .017 lash, then the gross lift would be .689, which would make the loaded rocker ratio 1.609(.428 lobe lift).

If shorter pushrods are used to help alleviate the burning up of the adjusters, the ratio will go down slightly.

Ok sorry for the lack of info I hope this is better

020 lash

6 revolutions of the guage

Not showing fantastic repeatability, but it can be tough working on the motor in the car.

.653 at the valve, +.020 lash = .673 gross/.428 lobe = 1.57

So, they are 1.6 rockers.

At .653 lift at the valve you are within the normal lift range of those springs.

The question now is........ Are they stiff enough to maintain proper control of the valvetrain....... At the required rpm....... With as much boost as you'll be running?

It's certainly a possibility.

When you fix the problem, just a lash suggestion. Get the motor as hot as you'll run it. Rip off one cover and set 1 pair of rockers. Let the motor go stone cold, maybe overnight. Then measure that same pair. Now you can accurately cold set them all, and you'll know exactly how much it grows with heat.

Good Idea Thanks!

Yes I had a real problem with Repeatablility. That was the most consistent amount but it varied several times.

At this time it appears I am around 14-16 lbs of boost. The procharger is turned WAY down, so I was very surprised it made this much pressure. (I now have bigger injectors and and 3 bar Map sensor so I should be much better off than before for tuning.)
I have bigger crank Pulleys to make more boost, but I dont think I plan to make any more power for a while.
I doubt the trans will last long and I cant afford to buy a T400 for a while.

I still plan to change the 1.6 Harland Sharps to the 1.5 and sell off the 1.6 rockers