Quote Originally Posted by Tommy knocker View Post
Yes sir. You close the discharge service valve and start it the valves will difinately get junked. Just close the suction service valve. If it pull down comp valves good go to LLS. If it doesn't pull down and hold get a valve plate.
Not necessarily.

I've done this in my much younger and less wise days.

That compressor is still in operation with no repairs made to it.