Re: Audi 90 Quattro 20 V, 1990

["Eric Renneisen" <renneie@hlthsrc.com>]

Hairless red tadpoles from Jupiter made Andrew Duane say:

>Hairy green toads from Mars made George Stroe say:
>> 1.Engine noise like a rattle, around 2,000 RPM, when 
>> decelerating only. Seems to come from the rear of the engine. 
>> Audi mechanic says no big problem, but unable to say what it 
>> is without dismantling valve cover 
>
> This one is probably easy. Angela's '90 90Q20V did this for
> quite some time, I finally got pi$$ed enough to track it down.
>
> DO THIS WITH THE CAR COLD!
>
> Slide underneath, follow the exhaust downtubes down from ...
[snip]

The 2000rpm range and the valve cover comment from mech. makes 
me think it could be the infamous distributor rattle. Some have 
fixed this with thin washers, others have had to replace the 
distributor. For details, check out:
http://www.geocities.com/MotorCity/Speedway/3229/engprob.htm


>> 2.Clutch very stiff, and high. Does not slip though.
>
>Normal for this car, much stiffer than my 100Q.

Agreed. My left leg gets a good workout. My first push in an 
unfamiliar car usually feels like I've put a hole in the floor!

>> 3.Brake pedal stiff. Need to apply much more pressure on the 
>> brake pedal than on my Coupe GT for example. Car brakes well, 
>> ABS works.
>
> See #2.

I'd check out the hydraulic system. Bomb and servo tests can be 
found at:
http://www.geocities.com/MotorCity/Speedway/3229/brakprob.htm
Also, maybe master or slave cyl. going bad? (sorry, no write-up 
on those.)

Eric Renneisen
'90 CQ 20V  -  my 'racing-iron'  ;^)
Chattanooga, TN