Burn tube question

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DanM
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Burn tube question

#1

Post by DanM »

Is a copper burner tube common in a '50s model 200A? That is the long tube that runs parallel to the genny.
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Tgarner01
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Re: Burn tube question

#2

Post by Tgarner01 »

I've never seen a copper burner tube on a Coleman... Brass is most common pre 70's or so
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JimL
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Re: Burn tube question

#3

Post by JimL »

Not copper but usually nickel plated brass. The brass isn't likely to show unless you soak the frame in an acid like citric or vinegar. I learned this the hard way. :( I've heard that some of the air tubes were painted, but I haven't run across one.
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Ridge Runner
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Re: Burn tube question

#4

Post by Ridge Runner »

The tube your referring sounds a little more like the air tube.

But either way, as mentioned—nickel plated brass or painted brass. If someone used citric or vinegar to clean the bare brass parts they can end up pink-ish and copper-looking.
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Brightlight
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Re: Burn tube question

#5

Post by Brightlight »

I have run into one or two air tubes that missed the plating process along the way. If I recall, these were early 60’s. One may have been on a Burg.
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DanM
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Re: Burn tube question

#6

Post by DanM »

Ridge Runner wrote: Fri May 27, 2022 10:04 pm The tube your referring sounds a little more like the air tube.

But either way, as mentioned—nickel plated brass or painted brass. If someone used citric or vinegar to clean the bare brass parts they can end up pink-ish and copper-looking.
I think what you said is right, when looking at the top and bottom ends of the air tube the brass is obvious.Thanks
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DanM
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Re: Burn tube question

#7

Post by DanM »

Image
Just a follow up with a photo showing the airtube in a copper color.
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Re: Burn tube question

#8

Post by Brightlight »

It’s a brass air tube that was soaked too long in citric acid. No plating left. Has leeched some zinc out of the brass.
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Re: Burn tube question

#9

Post by DanM »

Makes sense.
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25_502s
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Re: Burn tube question

#10

Post by 25_502s »

I never knew they were brass. Were they brass throughout the entire production run?
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Re: Burn tube question

#11

Post by Brightlight »

No, late production was steel. All green 200As have unplated steel air tubes. I know in ‘78 they were steel as well, but not sure when in the 70’s the change happened.
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