Pinhole in Gas Pressure Regulator? - Fiberglass RV
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Old 10-15-2006, 06:36 PM   #1
Daisy's Avatar
Trailer: 1978 Trillium 13 ft
Posts: 31
I've never had trouble with the gas in my 1978 Trillium 1300, but today, when I went to turn on the gas at the tank, in order to test out the propane capabilities of my refrigerator, I heard a hissing sound coming from just above the regulator. After testing with soapy water, making sure all the fittings were properly tightened, etc., I discovered that the gas was actually coming out of a HOLE! This hole seems to have always been there; certainly road debris wouldn't have created it, and yet I've never heard gas hissing out of it before. Any advise would be greatly appreciated - I've taken a couple of pictures to illustrate my problem.


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Old 10-16-2006, 05:41 AM   #2
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Trailer: 2004 Bigfoot 17 ft ('Beastie')
Posts: 564

Nice pictures! I think you have a faulty regulator and they are not repairable. You should consider having it checked by an expert to see if it needs to be replaced. The regulator looks pretty old and beat up. Probably not safe to try to use it.
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Old 10-16-2006, 07:19 AM   #3
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Name: Roger
Trailer: Y2K6 Born Free 32RQ on the Kodiak chassis, 2004 Airstream Interstate 22' B-van
Posts: 5,035
Pressure regulators do vent in an over-pressure situation. Generally that will only occur if the pressure builds up from heat to a set pressure value or if the regulator has become defective. If the temperature conditions were moderate when it occurred, I'd also vote for replacing the regulator. Although there is probably someone around who can test them, by the time you find that "someone" and pay them, it'll probably be far less expensive to buy a new one and swap it out (regulators are $20 to $40 depending on whether they're single or two stage and auto-switch for tandem tanks). After all yours HAS served faithfully for nearly twenty-nine years... I don't think it owes you anything!

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Old 10-16-2006, 09:01 AM   #4
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Name: Darwin
Trailer: 2002 19 ft Scamp 19 ft 5th Wheel
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A new one is inorder. There is a small hole that allows the regulator to work however if the diaphram gets ruptured, gas will leak out. Just get a new one and they do not cost very much at all. If you want one for free go to the city dump and get one off the best looking gas grill that you find.
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