Milano Brakes

[Gerry Lehmann <lehmann@domain.elided>]

Dan Walker inquired regarding his Milano brake problems.   Said they
wouldn't lock when hot or cold. =


The most likely phenomenon is that the fronts are glazed.  Metalmaster pa=
ds
are notorious for this,  if not precisely broken in,  and if you didn't d=
o
any rotor work when you replaced them with the Ereminas pads,  then some =
of
the glaze likely transferred and pushed them in that direction as well.  =
If
you mixed the pads as described, in your post  than the back pads are not=

likely doing much work either.  All street pads sold in the US are rated
with a 2 letter code which represents relative friction coefficient. The
ratings are stamped on the back so that mechanics can be sure to replace
pads with pads of similar Cf even if of different brand.   The first lett=
er
is the relative  ,Cf when cold, the second relates to Cf when  hot. =

Metalmasters rears (and most other MM aps) are rated EE, (low Cf, the
lowest I know of for street use) and if memory serves (and it usually
doesn't! ) the Ereminas pads are rated GG or even GH (higher Cf).  This i=
s
a fairly significant mismatch and would leave the rears doing quite a bit=

less work  than they should.  But the good news is ....better this than t=
he
other way around which would cause rear lock up.  I would strongly
recommend you use a matched set all around with the Mintex .

As to the questions regarding rotor replacement.  The hubs separate clean=
ly
from the rotors on the front so there is no need to replace bearings and
seals if you only want to  take the rotors to be refinished.  It is howev=
er
ceratinly a good time to repack them when you have them off , in which ca=
se
new seals would be appropriate.  I would also not undertake the job with
out a runout guage to check the final mount because in my experience if t=
he
machine shop doesn't do a perfect job you may need to do some minor
shimming on  remounting to get a perfectly true fit.  On the other hand
maybe I'm overly finicky on such things but I like to know the runout is
true on reassembly and generally won't accept more than a couple mils
runout on any of my Alfa rotors.

Gerry Lehmann
'85 GTV6 2.5  (once a glazer of many rotors at time trials, has now seen
the light with Porterfield carbon kevlar)
'86 GTV6 3.0 (sporting high cf, low dust, repco deluxe pads)

  =

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