Author Topic: LPG System Recon  (Read 160 times)

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Offline Pimp Wagon

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  • I own: a Motor Home
  • Year: 1988
  • Make: Tiffin
  • Model: Allegro
  • Chassis: Chevy G-30 Class C
  • Engine: 400 SBC 400 Turbo
LPG System Recon
« on: April 07, 2021, 03:54 PM »
When we looked at PW before purchase the seller was able to demonstrate the water heater, stove, furnace and refrigerator without issue which was good.  Turns out after getting down and dirty and checking it out after purchase that that funky odor in the van was not the toilet flapper seal but every LP fitting leaking confirmed by bubble testing. Remaining LP of course leaked out and when we had it inspected by Big Box RV of course they said they could not test the system as is was out of LP and they could not fill it cuz the tank had not been certified recently.  Knowing now that ASME tanks are fixed and do not require certification, I still get why they wouldn’t want to fill a potentially leaking system in their shop.  I’ve poked around locally and have not found any leads on someone that can really get this done on an older system correctly..... any direction would be much appreciated... thanks Bill
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Offline Oz

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Re: LPG System Recon
« Reply #1 on: April 08, 2021, 04:54 AM »
That is a difficult situation encountered by owners with that set up.
I'm thinking maybe consider seeing if converting to a standard set up is possible?
 Hm?
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Offline Winningbago

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Re: LPG System Recon
« Reply #2 on: April 26, 2021, 01:47 AM »
Oz are you suggesting converting all his LP appliances to typical electric? That cost would be very high...

PW, LPG is very basic. You said you confirmed leaking fittings using bubble testing. Have you tried tightening them? LPG fittings are brass and self-sealing, you are not supposed to use teflon tape or other thread tape, just metal-on-metal with these. If you have a leaking fitting just tighten it... you've already confirmed the appliances work.

Also, use flare nut wrenches as they are less likely to deform the fittings when tightening. Using a standard wrench could deform your fittings.
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Offline Oz

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Re: LPG System Recon
« Reply #3 on: April 29, 2021, 12:45 PM »
No, not saying convert to all electrical appliances. I said to a standard set-up.  By your description, it sounds like you have a single, under frame tank.  It's nearly impossible to find any place that will mess with them.  So, an option is to update the tank system.  Either new, under frame (if there us such a thing) or twin, upright tanks, or twin horizontal tanks.

As for leaking fittings anywhere else, there's no other option than to fix them.
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