Servicing propane gascocks?
When I pulled my water-heater (blew the "foof-gasket"), I noticed that the undercarraige gascock was very hard to turn off. Almost frozen in place.
I found a replacement at ACE, but I'm wondering about the other 5 or 6 valves. They may have some corrosion or buildup along the rotating stem.
It appears to be held in place with a screw and spring, and probably has an internal washer/gasket.
Can these be dissasembled and serviced?
I know it's cheaper and easier to simply replace the valves "to be safe". But I'm finding all the replacement parts anymore just aren't the same quality. The brass just isn't as thick or as strong, and the machining is poor quality. I don't think they're 100% brass anymore, unless brass is getting a heck of a lot lighter in my old age. More like pot-metal, and they're not fooling me. I'm not saying the Chinese parts are junk, but they're junk.
I'd rather refurbish the original ones, if I can.
Are there gaskets needed? Is there lubrication required, and if so, what type?
Any information would be appreciated.