Author Topic: Just checking  (Read 429 times)

chetbrz

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Just checking
« on: April 27, 2021, 08:20:33 PM »
On the 28/29 sedan the running board moldings are stainless steal.  Is this correct ?
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Russ T. Fender

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Re: Just checking
« Reply #1 on: April 28, 2021, 11:47:29 AM »
Wow that is a surprise.  On my 30-U the remnants of the running board moulding I had were aluminum but I don't know if they were original although given their condition I doubt they were replacements.   I didn't think they were using stainless steel anywhere on low priced cars that early.  I wish mine were stainless even if it would be incorrect.  The original moulding on a '29 Franklin I had were also aluminum and that was a much higher end car.  I guess that really doesn't mean much since Chrysler was always ahead of the curve and just might have made the switch early on.

Articifer Tom

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Re: Just checking
« Reply #2 on: April 28, 2021, 02:08:29 PM »
My Dodge used aluminum , but some Chrysler's used stainless . Accidental ebayed a pieced .

chetbrz

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Re: Just checking
« Reply #3 on: April 28, 2021, 02:15:47 PM »
The reason I asked is because I had picked up NOS running boards with original rubber matting.   I thought the moldings were aluminum until I took them apart to polish.  Of course the magnet test wasn't helpful because either isn't magnetic.  When polishing the pieces epically the outer trim was much harder than I would expect aluminum to be.  The pieces buffed up nice but are blotchy in spots.  Before I used something more abrasive I wanted to make sure I wasn't dealing with aluminum or a plated metal.   

I'll have to post some pictures ??
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chetbrz

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Re: Just checking
« Reply #4 on: April 28, 2021, 03:07:14 PM »
Here is a picture of the front molding and long side.



This is the unpolished rear side of the front molding.



Can polish up bright as chrome ??

On the long molding I am a little afraid to polish too deep just in case the item was plated. 

Any suggestions ?
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Russ T. Fender

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Re: Just checking
« Reply #5 on: April 28, 2021, 05:19:45 PM »
That almost looks like it was plated over brass and those dark spots are where you wore through the plating. 

chetbrz

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Re: Just checking
« Reply #6 on: April 28, 2021, 06:41:12 PM »
Maybe these running boards are from a 1929 Chrysler 65.  I think the same body style even the radiator surround is similar. I will check it out more tomorrow.  Been to the eye dr. Today and my eyes are still dilated.
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Articifer Tom

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Re: Just checking
« Reply #7 on: April 28, 2021, 07:48:13 PM »
if you have both side by side it is easy to tell difference . The ss is thinner and harder . maybe a file to the edge . Your dark spots if alum. can be ware through of anodizing . I can mic both for you tomorrow unless you need tonight .
                            Tom

chetbrz

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Re: Just checking
« Reply #8 on: April 28, 2021, 08:08:47 PM »
if you have both side by side it is easy to tell difference . The ss is thinner and harder . maybe a file to the edge . Your dark spots if alum. can be ware through of anodizing . I can mic both for you tomorrow unless you need tonight .
                            Tom

No problem or rush.  Tomorrow is another day.  I will take a file to the edge tomorrow.  I think to heavy for aluminum.  Iíll mic. it also.
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chetbrz

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Re: Just checking
« Reply #9 on: April 29, 2021, 09:52:05 AM »
Hi Tom,

On both the kick panel side and the outside edge trim I measure 0.028 which is 23 gauge steel or maybe 24 gauge 0.024.  Either way pretty thin but strong and heavy.  I cut a divot on the back end edge with a file.  Shinny metal throughout.  I think its stainless.  The brownish areas in the pictures might be from the garage florescent lights.., in reality dull flat steel color.  I think deeper polishing might correct the blotchy look.   

What is the gauge of the aluminum, Any suggestions ?
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Russ T. Fender

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Re: Just checking
« Reply #10 on: April 29, 2021, 05:29:05 PM »
The aluminum trim on my car looks to be 0.055 if that helps.  I think that is 15 or 16 gauge

chetbrz

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Re: Just checking
« Reply #11 on: April 29, 2021, 05:41:35 PM »
The aluminum trim on my car looks to be 0.055 if that helps.  I think that is 15 or 16 gauge

Thanks for the info. I think the trim is stainless steel.  Next to check if the running boards mount to the car.  Unfortunately lawn work tomorrow.
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Articifer Tom

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Re: Just checking
« Reply #12 on: April 29, 2021, 09:25:49 PM »
Could not get at an edge of alum to mic . But ss is .030 to .034 or 21 gauge on corner of side where flat . I believe you have ss .

chetbrz

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Re: Just checking
« Reply #13 on: April 29, 2021, 09:43:41 PM »
Could not get at an edge of alum to mic . But ss is .030 to .034 or 21 gauge on corner of side where flat . I believe you have ss .

Tom, I think that confirms it.  Not much difference between o.028 and o.030.  +- .005
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