re: 5ktq brakes prob - computer question

[iduff@charter.com]

Be VERY CAREFUL to torque the wheel lug nuts to proper spec (have to check 
with Mr. Bentley, I'm not sure what it is). I have had two sets of discs 
warp because I was a knucklehead and let Joe Garage mount tires for me. Joe 
used an air impact wrench to install the wheels, BAD NEWS.

Ian Duff, New Bedford, MA
'90 Coupe Quattro
-------------
Original Text
>From EICHSTEV@aol.com, on 2/29/96 1:04 AM:
To: <quattro@coimbra.ans.net>

Someone help before I do it again!

I seem to be having problems with warping the front brake rotors.  This
occurs after about 5k miles. The warping gets so bad it seems like 
something
is going to come apart.  Here are the facts:

220K + miles.  Three sets of front rotors in last 120K.  Factory and 
Girling
semi-met. pads.  No runout on hubs.  Bearings are tight. Rebuilt the 
calipers
- rear adjusters work fine. Guide pins don't bind.  New park brake cables.
Installed stainless/teflon hoses (FEEL GREAT). 

I just obtained a new set of ATE disks for the front along w/ PBR 
Metalmaster
pads.  I am about to install the rotors and pads, but wonder if I am
overlooking the cause of the warping.  Do the prop. valves or master cyls. 
go
on these cars?  Are the pads I'm using generating too much heat?  Does 
anyone
make a carbon or kevlar pad for these cars?  Fluid has been change 1/yr w/
Castrol LMA.

Computer quiz for tech heads.  I am wondering if anyone knows the 
difference
in the pinouts for the MAC-11 and MAC-14 ecms.  I know pin 5 is not used on
the -11s and the -14s use two knock sensors and all the pins.  Is the 
sensor
on pin 5?  Sorry, I don't have a 200 Bentley manual to look myself.  Why?  
I
need to see if I can test a -14 I've repaired in an '86 5kt.

Thanks,

Steve
'86 5ktq
'85 5kt
'84 GTI
'79 Spitfire (I'm sorry too)