cyl 1 low compression, misfire, out of nowhere. can't find the problem.

[wakeboardr42393]

changing it today! :D another rocker arm broke. lol.

[Cabriolet]

changing it today! :D another rocker arm broke. lol.

you need to either adjust your vaves correctly or your springs are shot. when one breaks it's a fluke. when 2 or more break, other things are wrong.

[wakeboardr42393]

it was not the same rocker arm as last time. also, I only replaced the one rocer arm that had broken, same as this time. I did not replace them all. so now I have 2 new rocker arms, coincidentally both on the intake side. If the same reocker had broken twice in a row, then i would be sure something else is wrong, like you said.

Both times a rocker broke was at high RPM near redline.

well, I adjusted my intake side valves again yesterday to .010" when cold, after putting the new rocker arm on and re-installing the shaft. I got this spec from the bentley.

Are valve springs a "wear item"? Do they lose a significant amount of "rate" over time?

:) thank you