[Supras] The case of the disappering clutch fluid

[Bob Shapton]

Slight fluid loss over prolonged period of time (when was the last time you checked fluid 
level?); got too low; air now in system; needs to be properly bled.

> 
> OK, so i go out to the garage yesterday and uncover the '92 to do
> some  
> errands because it hasn't been run in a couple of weeks and our
> brutal cold snap  
> was easing somewhat. The clutch pedal goes flat to the floor with no
> resistance 
>  when I go to start it. It will engage (allowing the car to start),
> but the  
> engagement point is right there at the carpet level.
>  
> I check the reservoir and it is pretty low (float resting at the
> bottom),  so 
> I add fluid, back the car out and let it warm up in the driveway,
> pumping the 
>  clutch a couple of times. Gradually, it starts to get some
> resistance in it, 
> and  the engagement point rises. A check of the garage floor under
> where it 
> was  parked reveals no fluid, and via mirror and flashlight there
> are no 
> visible  leaks from the reservoir or master cylinder area, the bell
> housing 
> linkages, or  under the dash. I drive it about 50 miles in
> combination highway and 
> city  driving, and while the shifts are smooth, the engagement point
> remains 
> several  inches lower than when I drove it last, with nothing but
> "free play" from 
> the  top resting point to the engagement point. When I get back home
> I check 
> the  reservoir again to find it still full.
>  
> So what happened here? The reservoir cap is creating a good seal so 
> evaporation isn't anticipated. The weather has been very cold the
> last few days  
> (highs in the 20s to lower 30s, lows in the low teens), but nothing
> that the car  
> hasn't already seen in past winters. And the garage never drops
> below freezing. 
>  And with a full reservoir, why have my clutch characteristics
> changed?
>  
> TIA for the help!
>  
> Greg Altig
> Keymar, MD
> 
> '92 & '89 (x2) Mk III Turbo/Targa/5  speed
> "The 5 liter eaters"
> _http://www.geocities.com/suprarossa_
> (http://www.geocities.com/suprarossa) 
> _http://www.mdsupras.com_ (http://www.mdsupras.com/) 
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