CRG Discussion Forum
Camaro Research Group Discussion => Restoration => Topic started by: 69z28302 on September 15, 2011, 10:07:19 PM
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Was wondering if the washer nozzles on the cowl were Silver Zinc
Thanks CRG
Mike
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I think they have a chrome finish. Im sure an expert will chime in.
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I was talking about the head light washers,sorry
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Thanks. Yeah, I am looking for the finish on the nozzles under the cowl panel.
Mike
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Chrome, at least that is what my originals from my RS appear to be.
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I guess Im confusing everyone.
I need the finish of the washer nozzle TUBES that go under the cowl panel at the windsheild on a non RS car. Sorry if there was some confusion on the post. Thanks for any feedback though.
Thanks
Mike
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Mike - I think you're on the mark with Silver Zinc. Silver Zinc is grayish silver. I also think Silver Cad might be an option but it might be too shinny.
Here's a section of the tube on my car. Although the lighting is poor it certainly isn't shinny.
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Mike - I think you're on the mark with Silver Zinc. Silver Zinc is grayish silver. I also think Silver Cad might be an option but it might be too shinny.
Here's a section of the tube on my car. Although the lighting is poor it certainly isn't shinny.
Thanks . mine were a silver color but after light blasting with a glass beader and buffing with a sotch brite pad I notice it's a cooper tube which is what what yours looks like. Has you your car been restored?
Thanks Mike
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Yes, the car was restored back in 1998. The copper appearance is due to poor lighting. Here is another pic that I hope shows up a little better.
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When new, they had a blackish plating or coating on them.
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Keep in mind that the appearance of plating changes quickly and continues to deteriorate over time. A friend has virtually unlimited access to silver cad and had many parts plated on his '68. Within a few months they were no longer bright; more of a dull grey.
A part plated 42 years ago with continuous exposure to the elements no longer looks like new.
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When new, they had a blackish plating or coating on them.
John could your snap a pic of yours?
Thanks Mike
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When new, they had a blackish plating or coating on them.
John could your snap a pic of yours?
Thanks Mike
That surface is gone on my originals after 42 years of exposure, but they had some sort of blackish coating when new.
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Thanks John
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I think they were plated.
Take a peek at this pic.
http://s61.photobucket.com/albums/h52/bertfam/?action=view¤t=68Z.jpg
In this pic they are bright.
My personal example (68LOS) I chipped away a few layers of paint and found a dull silver coating on top of copper tube.
Jim
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Thanks. I believe I'll have mine plated
Mike
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Guys, resurrecting this thread, came across this pair from a 69 survivor. Seems to confirm what JohnZ was saying. I have seen many others that were down to the copper. Any idea what the "cement" was to affix them to the top of the firewall? AIM lists"3840733 cement plastic seam"
Post #7 "buffing with a scotch brite pad I notice it's a copper tube"
Post #9 "When new, they had a blackish plating or coating on them"
Post #12 "That surface is gone on my originals after 42 years of exposure, but they had some sort of blackish coating when new"
Post #14 "My personal example (68LOS) I chipped away a few layers of paint and found a dull silver coating on top of copper tube"
Thanks, Doc.
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Pretty sure it's "dum dum" - stuff sticks in place like no tomorrow. 3M strip caulk is pretty close.
All of my nozzles have the appearance of a zinc finish, weathers out to a dull grey.
Regards,
Steve
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I agree with Steve, The original material used to hold the WS washer nozzle hard lines in place on top of the cowl was the 3M gray strip caulk (on my car).
I need to go look again at the headlight washer nozzles; I believe they are/were chrome, but I'll check to make sure.
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1968 86k Mile (LOS)
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Here is an NOS set of washer nozzles that I sourced some time ago for my 1969 Z/28 project. They have been properly stored so they don't show much aging and have a distinct "spring steel like" dark blue/black finish on the tubes (not well represented in the photo) and clear zinc finish on the securing tabs. The tubes are not aged natural steel or aged zinc plating. The finish is consistent with John H's (John Z) post "when new they had a blackish plating or coating on them".
(https://live.staticflickr.com/65535/51399826255_50d78cb657_z.jpg)
(https://live.staticflickr.com/65535/51399156993_ae3c1a580c_z.jpg)
(https://live.staticflickr.com/65535/51398814091_5dd9238e00_z.jpg)
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Lloyd does it appear that the solder attaching the "tab" is "flowing" over the black finish?
MY GUESS is that the original finish is Black passivated Zinc plating.
If not mistaken the base metal of the tubes is copper which would oxidize and be difficult to solder without further prep - aesthetically copper or even zinc would be out of place sticking out of the slots in the wiper grille, black would be preferrable insofar as concealment goes.
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Lloyd does it appear that the solder attaching the "tab" is "flowing" over the black finish?
MY GUESS is that the original finish is Black passivated Zinc plating.
If not mistaken the base metal of the tubes is copper which would oxidize and be difficult to solder without further prep - aesthetically copper or even zinc would be out of place sticking out of the slots in the wiper grille, black would be preferrable insofar as concealment goes.
James, yes solder is visible on the tabs where they connect to the pipes. It's possible that a black dichromate or black zinc oxide coating was applied originally and has aged to give a spring steel appearance.
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Looked at a Bunch of vintage road test articles.
Zinc Plated - Silver.
Unless there was a change? (Since I primary look at the 68's.)
Very Very Clear on Color Photo: Kelly Chadwicks 1968 Super Stock PHR
Black & White Photos, Bill Thomas Road Test 427, 1968 GM Engine Photo.
Posted Vintage 69Z shot.
"Technically, zinc plating on copper is not a problem. However, diffusion of the zinc into the copper will occur. If the zinc plating is not of sufficient thickness it may seem to disappear! "