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Old 12-30-2010, 12:51 PM   #1
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1975 25' Tradewind
Holland , Michigan
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Can not find Propane leak

I have a propane leak somewhere that I can not find.
It takes about a week of sitting to notice the stink, if I turn of the gas at the tanks the smell goes away in a few weeks.
My propane detector does not go off either, I did test it.
I have tried the soap bubble stuff with no luck.
Is there a Dye I can use or some other method to find a slow leak.
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Old 12-30-2010, 01:31 PM   #2
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I had a propane leak in my renovated Safari last spring that I could not find. It was just like yours. I sprayed every connection and could not find any bubbles. I finally when back over all the connections with the spray bottle but this time used warm soapy water. I also watched each connection for a very long time and finally found the leak. It was the connection to my fridge. Hard to see but sure enough after some wrench work the leak was fixed. Hope my experience helps.
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Old 12-30-2010, 01:33 PM   #3
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Bruce,

Try narrowing down the problem area by shutting any shutoff valves you have for the appliances. Then open the tanks again and see if you still have the smell. You may need to wait several days to be sure based on your description of the problem.

If no smell, then open the shutoff valves, one at a time, and again check for the smell. You may find that one of the appliances themselves is the source of the leak. The stove would be the first appliance I would check, as we had a leaky stove once. It was leaking about 2 inches before the connection to the stove. The pipe has been rubbing on the cabinet frame, and it finally wore through

Chris
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Old 12-30-2010, 03:42 PM   #4
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It might be as simple as the pilot light on the stove top not being turned off. That happened to me. Simple fix.....turn it off.
Loren
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Old 12-30-2010, 03:52 PM   #5
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Old almost empty tanks also will smell on use with a residual lingering odor. Another way of testing for leaks would be to install a pressure gauge, close the tank valve and see if it goes down.
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Old 12-30-2010, 05:39 PM   #6
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I know I'll get it for this but a gas installer showed me a very simple way to check for leaks, use a lighter. If there is a leak it will burn with a small flame. I used the soap spray test on my fridge connection, no leaks, then I tried a lighter and found a small leak at the fitting. Don't use it if you smell a strong leak, but it will find the small leaks. O.K. I'm ducking now.
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Old 12-30-2010, 07:03 PM   #7
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I suggest a shell off restoration. . . .
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Old 12-30-2010, 07:13 PM   #8
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Quote:
Originally Posted by mattkroff View Post
I suggest a shell off restoration. . . .
Yea lighting the gas will do that to
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Old 12-30-2010, 07:41 PM   #9
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The old propane and lighter trick!

I've seen pieces of dirt the size of pepper cause a valve not to seal all the way. The only way it could be found was Shacksman's way.

Just make sure you air out the unit before testing.
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Old 12-30-2010, 08:12 PM   #10
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Quote:
Originally Posted by Shacksman View Post
I know I'll get it for this but a gas installer showed me a very simple way to check for leaks, use a lighter. If there is a leak it will burn with a small flame. I used the soap spray test on my fridge connection, no leaks, then I tried a lighter and found a small leak at the fitting. Don't use it if you smell a strong leak, but it will find the small leaks. O.K. I'm ducking now.
If there is only one leak, this will work. If there is a second leak the flame will flash back (like when you turn off a torch). This could be dangerous. I am very surprised a gas installer with any sense would recommend a match.

An electronic leak detector used by repair technicians are very sensitive.
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Old 12-30-2010, 08:54 PM   #11
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Snoop leak detector liquid is very effective on threaded joints and tubing connections. Works better than soapy water. It has a long dispensing tube that can be pulled from or pushed into the bottle.

Google for sources.

Jim
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Old 12-30-2010, 09:08 PM   #12
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I had the exact same issue with my 76 Tradewind. Turned out that the pilot lite for the oven was not lit. There is setting on the oven dial that I did not notice that turns the pilot lite off. You might check that out.
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Old 01-01-2011, 10:45 AM   #13
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I am in Need!! I had my 87 MOHO propane filled a few days ago when it was 30 ish deg weather. Yesterday it was leaking out of pressure relief valve it was 60's. I figures it would stop soon day 2 and now a real strong smell and is still leaking. I turned off valve to close the propane valve but still leaks. I have not had any problems prior to filling it it had propane in it I just wanted to top it off. All the emergency rv service I called in town are out of business. My good Sams does not start for a few more days. Any recommedations ?? I do not want to start the coach.
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Old 01-01-2011, 11:41 AM   #14
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The solenoid gas valve in my furnace was dribbling gas -- not enough to set off the propane detector but stinky. Once I had it isolated with the shut off valves, it was an easy fix.

mike
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