Did we decide that the paint on the new discs gets to stay on or should
come off? The 42-0220 instructions say, "Replacement brake discs are
protected against corrosion with nitro-cellulose paint. For this reason
the corrosion protection on these discs must be removed and the discs
degreased before installation. This can be accomplished best with a
high-pressure hot water cleaning unit."
Since my high-pressure hot water cleaning unit is out of service at
present, I tried some acetone, which did nothing. I did not try hot
water but I am thinking that is not going to take the stuff off. The
link henifay posted suggests to leave it on, which I have done so far.
BTW the instructions in the box with the rotor is written in Germglish,
at least the box says the part was made in Germany but the instructions
read like Chinglish. They are pretty funny but mostly just telling you
that loosing you're breaks can kill you.
I got one side done this afternoon in between tstorms, remembered I had
a tube of grease in the garage from doing the other SD, for a minute
there I thought I might need to go to the stealer and get some (and take
some grease with me...) but I am good to go. AFter I do the other side
I need to do that runout business to get the bearings set right, I have
not done that before (my bad on the other car) so any suggestions would
be appreciated. I have a dial gauge with a magnetic base. (Yes I can
read the instructions, but experience is better...)
--R
http://www.peachparts.com/shopforum/tech-help/44908-does-one-need-remove-grey-coating-surface-new-e500-brake-rotor.html
Hendrik
who sneaks a peek on other forums now and then
The last set of disks that I got from Q were painted as well. I wiped the
paint off with a rag soaked in acetone, IIRC.
On Fri, Jun 28, 2013 at 12:39 PM, Dan Penoff<d...@penoff.com> wrote:
I stopped by the stealership to pick up my disks this morning, along with
some replacement screws and brake paste.
Holy mother of pearl those things are heavy! They seem to be covered with
a primer gray colored spray. I wonder if it's something I should try and
clean off the surfaces first?
Never seen anything like it before.
-- OK Don 2013 F150, 19 mpg 2012 Passat TDI DSG, 45 mpg 1957 C182A, 12
mpg - but at 150 mph!
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