4kcsq cooling problems (somewhat long)

[ben swann]

I had a He!! of a time getting one of my 4kqs to bleed properly, and
thought I had a major cooling system problem.  Probably the best thing
to try is the bleeder bolt at the top of the rad.  even that didn't
seem to work the first time, but eventually, I got the system to take
all the coolant in an burp out the air.

I don't know if the coolant system flush/cleaner I put in helped, and I
had flushed the system several times, but didn't get any garbage out.
Just seems that sometimes they can be difficult to bleed.

Ben

[from: Tapparoo at aol.com
Date: Mon, 23 Jun 2003 23:33:46 EDT
Subject: 4kcsq cooling problems (somewhat long)
To: quattro at audifans.com

--
[ 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 cameon.  No problem, acted normally.  Then I changed the
thermostat, hookedeverything back up, filled with water again.  This
time, system only accepted about3 liters (capacity is 8), heated
rapidly, fan turned on late, expansion tankstarted 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.
Iknow it doesn't mix with green stuff, so I drained out system again,
thinkingthat I "lost" a few liters of old green stuff in system
somewhere and pink andgreen 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 takesabout 3 liters, fan does not turn on, expansion tank
does hissing and gurglingthing again.
Checked thermostat, opens at 87 C like it should.  Is pump bad? (worked
fine24 hours ago) expansion tank bad?  What in the hell is going on
here?
Major thanks in advance.
Dan]