I'm in the process of getting my hw heater up and running in my 1965
Overlander. I've flushed and filled tank and have had the propane burner fired up. I believe the heater is a good unit, no leaks and is intact. I can hear gas escaping intermittently as I move the gas valve stem around. What is the proper way to remove?/refurb my valve. It is a Honeywell valve unit. Wanted to know before I started unscrewing things and possibly screwing things up. Thanks in advance.