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Old 03-08-2013, 03:56 PM   #1
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Moho Propane Valve Replacement

I've got a bad shut-off valve on my moho. I took a look at it and I'm a bit puzzled. Take a look t this pic.

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It seems whoever did this didn't know how a union is used. Maybe I'm missing something but I don't see any way to remove the valve without disassembling the first stage regulator. Maybe I'm missing something. Anybody got any ideas?
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Old 03-08-2013, 05:43 PM   #2
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Yes, you are missing something. The brass fitting between the red regulator and the shutoff valve is for a type of flare fitting, and it should simply unscrew from the shutoff valve.
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Old 03-08-2013, 07:32 PM   #3
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ditto Terry's suggestion - that looks like a (left-handed) male P.O.L. fitting into the grey handled valve.

you might also wish to examine and remediate the rust condition as a matter of long term safety.... and, please be careful bleeding off that tank if there's still any product in it!

best,
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Old 03-08-2013, 08:50 PM   #4
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Thanks guys, when I blew up the picture and studied it I see the fitting. Kneeling in the wet gravel I didn't look that close. I just saw normal threaded fittings without a union or a way to get it apart, my bad.

The tank now is empty. I noticed a stem leak in the valve so I closed the valve. I went inside an lit the stove to bleed off line pressure. After some time I realized the valve wouldn't completely close. Finally I ran the generator to burn off the propane in the tank. Fortunately the tank was pretty low anyway.

Now I went to get at the valve and needed to put some glasses on. Yes I do want to clean up and paint the tank. I was kind of waiting for the weather to warm up a bit, it's been a bit cold and wet to be painting. Also time to replace the hoses and freshen up the whole system.

Thanks again.
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Old 04-04-2013, 11:01 PM   #5
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Well I have to admit I'm still embarrassed about missing the POL fitting. I guess I just had it in mind that because the tank was permanently mounted that the plumbing would be also.

Anyway I took the tank into a shop to get a new valve, gauge and a paint job. Pretty straight forward I thought, not so. About an hour after I got home the phone rang. The guy said they couldn't work on the tank because there was a hole in it and somebody had put a screw with a rubber gasket in it. After several minutes of disbelief I drove back to see what this guy was talking about. This is what I found.

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There is no evidence that it was leaking but the guy said he couldn't touch it.

The interesting thing is how long has this screw been there. My father-in-law bought it from the son of the original owner. The original owner died after owning it for five years and it sat idle for another five years when my father-in-law bought it. The in-laws claim no knowledge of it so that screw must have been there for a lot of years.

My first thought was to look for a new tank. Manchester Tank has one the same size but the valve is in the wrong location and they won't build it like I need it. Turns out they are so backed up that they won't even accept an order for any tank. Our good friend Brad has the one from his parted out 34.5 but normal shipping outfits won't touch a used tank.

After some searching I discovered a welder with a certification for a "R" stamp can weld it. After more searching I found such a welder about ten miles away. After a couple of weeks and more than a few dollars I picked up my tank. Does it look any better?

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I think the welder did a pretty good job.

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Anyway I'll get it back in the coach in the next day or two and then down to get purged and filled.

I would hope this is not a normal occurrence but you guys might want to take a look at your tanks just in case.
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Old 04-04-2013, 11:31 PM   #6
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I can't find the screw in mine???? except when I have to buy the stuff to fill it.

Nice job on the repair.

Dave
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Old 04-05-2013, 01:14 AM   #7
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Quote:
Originally Posted by masseyfarm View Post
I can't find the screw in mine???? except when I have to buy the stuff to fill it.

Nice job on the repair.

Dave
If you can't find the screw Dave you just have to look harder. Mine was kind of on the rear top near the frame. I don't think you could see it without a mirror.

I wish I could take credit for the repair but all I did was write the check. I am impressed with the guy's welding, he is very skilled.
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