I think I know what took this engine out of service. When I took the left hand rocker arm cover off I discovered that the #4 exhaust rocker was broken and the #4 intake push rod was broken. I need to check with William Wynne to see what sort of failure that was.
The #4 exhaust rocker
The #4 intake push rod looks bent, but it is actually broken (click image to open new expandable windo
