Ok Gents,

After figuring out that my ‘54 235 was mechanical lifters (not hydraulic), I have the valve lash set (cold) and then adjusted once hot (including a rechecked).

Issue: I have a sound coming from the top end (?) that reminds me of the lifters/valves clattering on an old diesel engine. I can’t figure it out.

It originally started under load at around 2,000 rpms (guessing) and will now start and extend into the idle (clutch in). The sound fluctuates with RPMs but will not do it when parked (when reving) or at idle. The top end has oil dripping from the lifters and it maintains oil pressure.

Any thoughts or ideas are appreciated! I will report back all findings if I know how to do it!

Chris