Good Sam Club Open Roads Forum: Copper gas line touching aluminum frame problem
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 > Copper gas line touching aluminum frame problem

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bighatnohorse

Gig Harbor - Cave Creek

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Posted: 04/26/20 09:02am Link  |  Quote  |  Print  |  Notify Moderator

Camper: Lance
Frame: Aluminum

Problem: possible galvanic reaction where copper propane tube is touching aluminum frame.

During a routine inspection I noticed a discoloration on the propane tube line to the refrigerator.
Two photos shown; one overview (I've released the copper tubing clamp at the top to allow separation of the copper tubing and aluminum frame.)
Second photo: close view of problem spot

My temporary fix will be to place a sleeve of plastic or vinyl tubing over the copper tubing.

Questions: Can the copper tube be treated with something to prevent further deterioration of the copper?
How should this issue be treated?
[image]

[image]


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wolfe10

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Posted: 04/26/20 09:11am Link  |  Quote  |  Print  |  Notify Moderator

Absolutely, you can get galvanic reaction/corrosion between aluminum and copper. And, isolating them with any non-conductive material prevents it.

* This post was edited 04/26/20 09:23am by wolfe10 *


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dougrainer

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Posted: 04/26/20 09:15am Link  |  Quote  |  Print  |  Notify Moderator

1. Contac Lance and the NHTSA immediately with your pics. This will probably result in a National Safety recall. Which means you will get a NEW line at no cost to you, parts and labor. If yours has this, all other with your model will have it. You will be saving scores of RV'ers a major problem and possible explosion or death.
2. From the pic, it appears not just discolored, but has rubbed off part of the copper and the integrity is compromised. I would replace that line if it was mine. Doug

PS, this is how recalls get initiated---when the customer finds a problem and notifies the authorities.

time2roll

Southern California

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Posted: 04/26/20 09:44am Link  |  Quote  |  Print  |  Notify Moderator

Looks like the copper is up against a wood spacer. Give it a yank to move them apart.

I see what looks like some grey sealant on the wood spacer but where is the aluminum frame?


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Cummins12V98

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Posted: 04/26/20 09:57am Link  |  Quote  |  Print  |  Notify Moderator

I had an issue with my feeder line to cooktop. It was rubbing against the galvanized steel opening. I put a "CONDOM" on the line to protect it from wearing thru.

I always save left over hoses for such "PROTECTION".

Do the same with yours!!!

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bighatnohorse

Gig Harbor - Cave Creek

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Posted: 04/26/20 12:01pm Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

Looks like the copper is up against a wood spacer. Give it a yank to move them apart.

I see what looks like some grey sealant on the wood spacer but where is the aluminum frame?


The aluminum is sandwiched between two skins of wood. The "grayish" color is the aluminum. The aluminum seems to have a coating of glue on it.
I can't just "yank them apart" because the copper tubing is rigid and attached to the frame.

RedRollingRoadblock

Oregon

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Posted: 04/26/20 12:11pm Link  |  Quote  |  Print  |  Notify Moderator

Well so much for "Quality" from REV, Again.

time2roll

Southern California

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Posted: 04/26/20 12:17pm Link  |  Quote  |  Print  |  Notify Moderator

The 90 bend in the first pic implied to me that this is 'soft' copper and can be bent.

wa8yxm

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Posted: 04/26/20 04:29pm Link  |  Quote  |  Print  |  Notify Moderator

If the copper has not yet been damaged I'd suggest a wire loom (That black ribbed plastic tubing aroudn the wires) or a length of clear plastic tube slit so you can slip it over the pipe and a dab of GOOP to keep it in place.


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bighatnohorse

Gig Harbor - Cave Creek

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Posted: 04/26/20 08:22pm Link  |  Quote  |  Print  |  Notify Moderator

wa8yxm wrote:

If the copper has not yet been damaged I'd suggest a wire loom (That black ribbed plastic tubing aroudn the wires) or a length of clear plastic tube slit so you can slip it over the pipe and a dab of GOOP to keep it in place.

Done. I used plastic/vinyl tubing and slit it lengthwise. Works perfectly.

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