Re: Overheating... another thread. (first one bounced)

["Allyn" <amalventano1@home.com>]

brian,
in response to #1, the prestone flush from anywhere worked fine for me. i
got loads of rust/crap out during the initial flush as well as the second
flush (with water, per directions). seemed weird getting that crap out since
the coolant that came out initially was clean+green.
al

----- Original Message -----
From: "Brian McGarvey" <brianm@zbt62.eastnet.gatech.edu>
To: "Allyn" <amalventano1@home.com>
Cc: <scirocco-l@scirocco.org>
Sent: Thursday, June 07, 2001 4:08 PM
Subject: Re: Overheating... another thread. (first one bounced)


> Allyn + list.
> I didnt *want* to let it get that High. I was stuck in atlanta traffic
> where there were *NO* exits to pull off at. I had all the widows and
> sunroof open w. the heat going full blast. I am now *very* careful about
> the times around Atlanta when I drive.
>
> History. I didnt replace the water pump just for preventative maint. Prior
> to I was running hot, I only got to drive it a tiny bit, but I suspect it
> was doing the same prior too. *Now* I know why the PO really wanted to get
> rid or it. He couldnt drive it at night (euro lights not relayed) or
> during the day with traffic.
>
> My plan.
> #1
> Replace the fan switch w. a 160 degree fan switch.
> FLush the system w/ a flush type cleaner (add to it any recommedations).
> Use burping method. Might try w/out a thermostat for a while.
>
> #2
> The bently says that the LOWER rad hose can collapse causing overheating.
> Being ordered from potterman ASAP. Also I will not drive it in traffic,
> until this is rectified.
>
> #3
> Failing all this I WILL get my RAD redone.
>
>
> Question.
> what are the drawbacks other than NO heat to running without a thermostat
> in this engine. I have done it in many other cars w/out a problem.
>
> #4
> Dunno...
> head gasket maybe + screwdriver for water passages.
>
> brian
> perplexed.
>
>
>
> On Thu, 7 Jun 2001, Allyn wrote:
>
> > brian + list,
> >     same is happening to mine. same exact symptoms on the temps, 110 on
hwy,
> > 120 when on it. i havent let it hit that 135 mark, highest i've seen it
is
> > 120 at an idle. i refuse to let it go much higher as that was the end
cause
> > of rings going on my 88 16v back in 94 (in the middle of a road trip,
arg).
> > i've done the same as brian, even more i think. water pump, thermostat
(also
> > did holes), radiator flush, 60/40 antifreeze/h2o, etc. the flush did
drop it
> > some but not alot, and it will still climb up there at an extended idle,
> > given the chance.
> >     whats funny is that my other 16v (the one i yanked the motor from
before
> > it went to the yard), ran extremely cool, just like my original 88 16v
did.
> > it would run at 90-100 oil temp driving, go to 110 at idle. water temp
would
> > go up 3/4 and down to 1/2 when the fan kicked on. also it wouldnt break
1/2
> > temp at idle with the a/c on (low speed fan could keep it there easily).
on
> > top of all of this, both of those cars were driven in tampa, FL in the
> > summer!
> >     i believe in the end that our problem lies in tuning. not
necessarily
> > just timing, but mixture and o2 sensor. i have a feeling that either our
> > mixture drifts over time (to explain hot while driving), and possibly
our o2
> > sensor drifts in a certain direction over its lifetime, adding to the
hot
> > idle. a well tuned engine should run damn cool, and i think slight
drifts,
> > combined with our crazy compression ratios, all adds up to cause us
pain.
> > lemme know what you guys think
> > al
> >
> > Allyn Malventano, ET1(SS), USN
> > 87 rocco 16v (rieger gto - green - 'der rocco' - restoration in
progress)
> > 87 jetta 8v wolfsburg 2dr (260k, still tight :)
> >
> >
> > ----- Original Message -----
> > From: "Brian McGarvey" <brianm@zbt62.eastnet.gatech.edu>
> > To: <scirocco-l@scirocco.org>
> > Sent: Thursday, June 07, 2001 11:45 AM
> > Subject: Overheating... another thread. (first one bounced)
> >
> >
> > > Hey Ya'll.
> > >
> > > I got stuck in traffic today and my rocc (87 16v) nearly overheated.
It
> > > would have If I hadnt cranked the heat on full blast (3 resistor is
> > > hosed).
> > >
> > > symptoms.
> > > at idle it jumps from normal op temp to the dot just below the
overheat
> > > line (not the led) oil temp got to about 135C noramlly 110C when
driving
> > > faster. If I hot rod the car even at hwy speeds the temp jumps to
120C+
> > > and the water temp rises.
> > >
> > > Things done to date.
> > > R&R water pump
> > > R&R thermostat (drilled 2 little holes)
> > > R&R all belts.
> > >
> > > drainded old std green anti-freeze
> > > put new anti freeze in (upper rad hose) std green stuff.
> > >
> > > system burped once. dropped temp a little the other day a cincy ( had
a
> > > great time)
> > >
> > > Things on the todo list.
> > > change out fan switch w/ 160 degree 3 pole swtch
> > > pn 8.170.03 fan switch 3 pole.
> > >
> > > change out antifreeze w/ water wetter.
> > >
> > > If none of these things work I'm left with the following options.
> > > #1 radiator is stopped up. and needs flushing.
> > > #2 the motor is stopped up and needs flushing.
> > > #3 new thermostat is foobar. not unheard of but unlikely.
> > >
> > > any suggestions of flushing the system?
> > >
> > > brian
> > > 87 16v all the cool mods gotta wait till it runs good.
> > >
> > >
> > >
> > > --
> > > Email LIST problems to: scirocco-l-probs@scirocco.org.
> > > To unsubscibe send "unsubscribe scirocco-l" in the message to
> > majordomo@scirocco.org
> > >
> >
> >
>
>
> --
> Email LIST problems to: scirocco-l-probs@scirocco.org.
> To unsubscibe send "unsubscribe scirocco-l" in the message to
majordomo@scirocco.org
>


--
Email LIST problems to: scirocco-l-probs@scirocco.org.
To unsubscibe send "unsubscribe scirocco-l" in the message to majordomo@scirocco.org