Re: Weird symptoms with engine upgrades
I have an update for you guys and thanks again for the replies - it has been interesting to read. When I took the valve covers off this is what I found.
It looks like the lock on the #6 exhaust valve backed off and the rocker turned sideways. Once the exhaust valve stopped opening the charge had no where to go or the pressure held both valves closed and the push rod on the intake side bent. There does not seem to be much other damage. How much do you think I should tear apart? I am thinking of replacing the locks, checking the compression in that cylinder, replacing those 2 push rods and possibly the stud that shows a little wear and trying again. The top of the valve stem is very slightly roughed up on the intake. The guide plate held the push rod in place so it does not look like it contacted the head at all. Turning the motor over by hand the lifters are still going up and down on that cylinder (and the rest) like they should so I think the cam may be good.
Time will tell...
68 RS Coupe 327/350 TH, Detroit Speed, Hotchkis, Vintage Air, 8.5" 3.42 posi 10-bolt, MagnaFlow 2 1/2" exhaust, etc.
"The public cannot be too curious concerning the characters of public men."