4kcsq cooling problems (somewhat long)

[David]

Did you bleed the system? There is a bleeder nut on top of the radiator. Fill system, put cap on, open nut, start car, allow expansion to push the air out the nut hole, put nut back in and drive off.

Dave
1987 CGT Special build 2.3
SE Virginia
>
> From: Tapparoo at aol.com
> Date: 2003/06/23 Mon PM 11:33:46 EDT
> To: quattro at audifans.com
> Subject: 4kcsq cooling problems (somewhat long)
>
> --
> [ Picked text/plain from multipart/alternative ]
> Ok, nothing fancy with this getup, just a stock system.  Drained out old,
> VERY green fluid, filled with water from garden hose, then ran until the fan came
> on.  No problem, acted normally.  Then I changed the thermostat, hooked
> everything back up, filled with water again.  This time, system only accepted about
> 3 liters (capacity is 8), heated rapidly, fan turned on late, expansion tank
> started to fill up, then I heard this awful clicking noise.  Shut off car,
> heard gurgling and hissing, then expansion tank dropped way below minimum level.
> I used pentosin in distilled water to fill after I changed thermostat.  I
> know it doesn't mix with green stuff, so I drained out system again, thinking
> that I "lost" a few liters of old green stuff in system somewhere and pink and
> green were having problems. Filled with just water again, did same thing.
> Next, maybe thermostat was in incorrectly.  Opened up, thermostat in
> correctly, but I rotated it 180 deg. just in case.  Now heats up rapidly, only takes
> about 3 liters, fan does not turn on, expansion tank does hissing and gurgling
> thing again.
> Checked thermostat, opens at 87 C like it should.  Is pump bad? (worked fine
> 24 hours ago) expansion tank bad?  What in the hell is going on here?
> Major thanks in advance.
> Dan
>