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Old 10-04-2011, 05:32 AM   #1
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1969 27' Overlander
Albuquerque , New Mexico
Join Date: Sep 2011
Posts: 168
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.

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Old 10-04-2011, 08:08 AM   #2
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1974 Argosy 26
Morrill , Nebraska
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I had a similar problem. Just squirted the rotating part with good quality penetrating oil and they are working smoothly after rotating each handle a few times.

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Old 10-04-2011, 09:18 AM   #3
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2003 22' International CCD
Kiln , Mississippi
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Once, when working on an 80+ year old house ( I was into This Old House back then) I hired a plumber to assist with the process of my work passing the city inspection. His comments then ring true today. There is not a valve in the world that should sit open all the time and never exercised at least once a year. Sounds funny, but the only way you can be sure it works when you need it is to use it when you don't. That said, many valves have some form of packing that with age gets old and gums up. I try to turn them on and off several times a year to test them.
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Old 10-06-2011, 09:54 PM   #4
3 Rivet Member
1969 27' Overlander
Albuquerque , New Mexico
Join Date: Sep 2011
Posts: 168
I agree about exercising the valves. I'll make them do pushups at 5:00 a.m. tomorrow!
I'll also try the penetrating spray. It's worth a shot.
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