Leaking propane out the fill valve

It's a gas
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JoeD
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B190 Year: 1993
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Leaking propane out the fill valve

Post by JoeD »

93 B190
Had an attendant overfill the propane tank. Not the first time, but this time it seemed to spew out the fill valve. This was last month ( mid March), was cold and it has been until recent. And at the time id hoped to just bleed some out with the valve until I got to the right fill amount. But it kept spewing. Is the fill valve damaged? Are they replaceable? It has been intermittent as I didn't bleed all the gas out until tonight after I caught another wiff of it stinking again and had enough. Was kind of thinking of doing a tank overhaul of sorts. Anyone do that? New regulator, new fill valve, hoses, valve handle and add methanol. Etc. Any tips? Ive also tried to have the local propane dealer (AmeriGas) have a tech "check" the system because last year I had some leaking out the packing nut on valve when it was reallu cold. They just sprayed soap water on the valve and called it good. Of course it wasnt malfunctioning at the time and had warmed up. I'm wondering how much the cold has to do with these issues, but like I said it wasn't the first time it was overfilled. Ive heard of potential damage to it from overfilling, so any and all advice would be appreciated. Thanks a bunch!
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skater
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B190 Year: 1991
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Re: Leaking propane out the fill valve

Post by skater »

There are two things going on here, I think.

One, it can leak out the fill valve, around the handle. The packing is shot. You need to have someone who does propane repair (RV repair place can probably do it) repair or place the valve.

The second is the overfilling. They really shouldn't be able to overfill it. If you're saying it's overfilled because of this leak, then see above. The other possibility is that you have it filled when it's cold outside, then go someplace very warm, and the gas expands. The pumps only fill tanks to 75% or something to allow for that possibility, but even if it does expand more than that, there is a blow-off valve that will relieve the extra pressure.
1991 Airstream B190 - bought, 2005; sold, 2011; bought 2017
1995 Airstream Excella 30' trailer

WBCCI #13270, Washington, DC Unit
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JoeD
Weekend Camper
Posts: 24
Joined: Sat Jul 30, 2016 4:15 pm
B190 Year: 1993
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Location: Telluride CO

Re: Leaking propane out the fill valve

Post by JoeD »

https://youtu.be/G9lQGivIrN8

Found this link seems easy enough to do w an empty tank. Ya the place that has overfilled me twice has claimed they dont have a automatic shutoff valve and this last time put over 6 gals in. Pretty sure the tanks arent even that big? Either way I suppose just find where to buy the parts.
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skater
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Posts: 2325
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B190 Year: 1991
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Re: Leaking propane out the fill valve

Post by skater »

JoeD wrote:
Sun Apr 21, 2019 9:47 pm
Found this link seems easy enough to do w an empty tank. Ya the place that has overfilled me twice has claimed they dont have a automatic shutoff valve and this last time put over 6 gals in. Pretty sure the tanks arent even that big?
Yikes. I'm having trouble finding specs at the moment for earlier ones, but in '98 or '99, it was 9.8 gallons, so 6 gallons would be 61%, which isn't overfilled.
1991 Airstream B190 - bought, 2005; sold, 2011; bought 2017
1995 Airstream Excella 30' trailer

WBCCI #13270, Washington, DC Unit
micabarry
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B190 Year: 1991
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Re: Leaking propane out the fill valve

Post by micabarry »

The culprit on my 91 was an "o" ring on the end of the shutoff valve. I burned off the propane and disassembled the handle, took the old "o" ring to Lowes and found one (package of 8) that looked right. #6 "O" ring I think. That was 3 years ago and it had been good since.
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