Subject: RE: blue pipe on the right side
Author: Peter Scheer
Date: May 2, 2001, 1:09 PM
Post ID: 1706564287
I have been wondering if the plating itself is a variable in the blueing
discussion.
I talked with a plating / chemistry specialist about this today. I learned
that chrome plating is tricky because it is a brittle material and prone to
cracking if the base metal has imperfections. Usually copper is plated on
the base metal to level it and then nickel is plated over that and finally
the hard chrome. Blueing can be from an impurity that migrates up to the
surface. When I described the deep blue that sometimes happens, he
suggested cobalt as an impurity that could be coming out. Cobalt can be in
the nickel or the chrome. The quality of the plating bath will determine
that. He said smaller shops dont have a lab to analyze the baths to
confirm the correct bath chemistry.
I am sure the amount of heat will affect the blueing, but in the case of
the Bonneville blueing all the way down, I have to wonder if the cause isn't
in the plating itself.
Just offering this up for general info. It doesn't do much as a prevention
though.
Pete
71 Ambo
| -----Original Message----- From: Chris Berry [SMTP:guzzis-@hotmail.com] Sent: Wednesday, May 02, 2001 1:52 PM To: Loopfram-@topica.com Subject: Re: blue pipe on the right side ============================================================ Stay current the easy way - get developerWorks delivered to your inbox, weekly highlights of what's new in XML, Java, Linux, and open standards-based software development. http://click.topica.com/caaab2hb1dfltb15Bu9a/developerWorks ============================================================ I have put several hundred miles on my eldo since I put my new pipes on and they have not turned. One side has a spot of color on it, but I think thats from where I didn't clean off the polish all the way. I've been told that if they don't turn, the bike is slightly rich, but my plugs look normal. Instant blueing means too lean a mixture. So therfore, I have no idea what's up with my headers. Maybe it lakes longer than I thought. Btw, At Guzzi day, I saw a new Bonneville with less than 1000 miles with pipes that were blue from the exhaust port almost to the muflers. Everyone's comments I heard were of the too lean a mixture persuasion. Hope this helps. Chris in NC '74 Eldo civ.
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