[dap930]

redstack,

My engine has done the same thing since I overhauled it several years ago. During the overhaul, I had the rockers rebuilt and installed new rocker shafts. Every valve adjustment produced the same results; a tick - tick - tick after the engine warmed up for a couple of minutes. I could not get rid of the tick - tick - tick. Then last year I had to pull the engine for a clutch job. I decided to remove the rockers and shafts from cylinders 1 & 2 where the noise was coming from to inspect for wear. Well the rockers and shafts looked and fit good with no noticeable wear. And the cam lobes looked good too, no uneven wear patterns. The only thing I could find was that a couple of the adjuster swivel cups were noticeably more loose than the others. So I replaced those with new ones. Also, I adjusted the valves using the backside method.

After reinstalling the engine, the tick-tick-tick is now gone. So I am not sure what corrected the problem, the replaced adjusters or the backside valve adjustment, or a combination of both, but at least the tick is gone.