I've drifted off topic on this thread, from the valve seat/ noise to intake
oil leak.
re: valve train (or other source?) noise, so far I have found nothing. Noise was definately heard in # 6 exhaust header intermittantly and in no other pipe. Thought it had to be in valve train, broken spring, loose seat, collapsed lifter ?
Removed exh springs all seems ok there, from what I can see, seats are intact. Pulled lifters and they look ok, but I see that I cannot disassemble them due to the bar rivet.
I guess next step is to pull head.
Any thoughts/ ideas appreciated.
Ted