[DeTomaso] How tough are the 15" factory magnesium wheels?

[JDeRyke at aol.com]

In a message dated 1/7/09 5:35:55 PM, kmaguire at landrovermiramar.com writes:
snip.....
> I am going to a Discount tire store recommended by an officer of the San 
> Diego Pantera Club. Also, the wheel weights are mounted on the lip of the rim. 
> Is this the common wheel weight mounting
> method used on these wheels?
> 
Absolutely not! The weights always vibrate a little, chip the protective 
paint and then water gets in and dissolves the magnesium! ALWAYS use glue on 
weights placed on the horizontal backside of the wheel, with a couple of protective 
strips of duct tape over them.
Second problem: be very sure the tire people know that this is a 35-year-old 
MAGNESIUM wheel before they use their automatic tire-machine on it. Wheels 
have been chipped and broken in two by these machines. When I'm forced to take a 
wheel to such places, they often elect to do the disassembly (and reassembly) 
by hand once they know what they're dealing with! 
To answer the question in the post heading, Campagnolos are pretty tough but 
are quite thin (only 3/16" thick in spots), and as time goes on, mag gets 
harder and more brittle. Its best if such wheels are annealed in an oven every 
decade or two to remove this brittleness. Good luck- J DeRyke



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