Engine knocking/ chatter sound
I have a 2007 john deere la125. It has a 21 hp ohv briggs. The head gasket was blown out and burning lots of oil. I replaced the head gasket and reset both valves to .005. Now the engine has a terrible noise that sounds alot like valve chatter but I have checked it 10x. The engine had a little noise before but had 300 hrs without a adjustment but its alot worse now.
Is this a good question?