You seem to have several issues going on.
1. The regulator: If it is bad it may leak gas or provide improper gas
pressure. It should smell bad if it leaks assuming you get smelly gas. Pure
methane has no odor, but every tank I have ever got had the stink perfume added.
2. The solenoid: If it passes gas while turned off it does not work, it
would seem to be stuck open.
3. Other random leaks: I test my system by noting the gas pressure with the
tank valve off. I have no solenoid, but for this test the solenoid would be on
if you have one. The tank pressure will be trapped between the tank and the
regulator. I think it takes days for my pressure to fall to 0, if it does it
quickly you have a leak.
Joe
Coquina
From: Hoyt, Mike via CnC-List
Sent: Monday, September 27, 2021 9:31 AM
To: 'Stus-List'
Cc: Hoyt, Mike
Subject: [EXTERNAL] Stus-List Refurbishing CNG fittings
I have decided to replace or refurbish the regulators and solenoid on the CNG
system on Persistence. I had noted that even with the solenoid not turned on I
would still get gas to the stove and have lately begun to suspect there may be
a leak in the system. So rather than simply looking for an obvious leak (soapy
water etc…) that it may be time to replace the 30+ year old solenoid and the
two regulator like parts where the tank attaches to the line.
The link below shows the parts that I am hoping to replace. Does anyone on
this list know where o source them and what should be asked for instead of
“regulator like parts”?
https://www.hoytsailing.com/CNG_Regulators.jpg
Thanks
Mike Hoyt
Persistence
Halifax, NS
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