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Post by anthony on Mar 9, 2024 10:50:27 GMT -5
I recently restored a 90c. Pressure tested at 15 pounds. In 30 minutes it leaked to 10 pounds. Is this ok? Cannot find the leak...
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Post by nana on Mar 10, 2024 10:56:08 GMT -5
Can you get a technician from the gas company to come out and take a look?
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Post by mach12 on Mar 16, 2024 11:55:03 GMT -5
I recently restored a 90c. Pressure tested at 15 pounds. In 30 minutes it leaked to 10 pounds. Is this ok? Cannot find the leak... Have you cleaned and greased the valves (and greased with correct grease)? They'll almost always leak if the old grease is dried up and they're not cleaned up and properly greased. When I do a leak test I remove the fittings for the pilots and plug them. The valves for them seem to always leak a bit. It's not really an issue if the pilots will be left on since they tend to leak past the valve and to the pilot, not out around the shaft of the valve, at least in my experience, but if you plan to shut off one or both of the pilots you'll need to replace the valve. To check whether I'm leaking past a burner valve I pull the burners out and put my soapy water or leak detector on the orifice cap. Normally it's debris that will clean out but if they need to be polished, I use Bon Ami with a drop or two of water to make a paste. Be careful when you disassemble the valves that you don't mix parts between the valves. Here's an example of gas valve grease. Do a search using the term gas valve grease and you'll find different options and sources. A little goes a long way, so go for the small option.
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