Re: rieger radiator/cooling problems SOLVED!

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

Ben,
Chris just posted on the info about purple power (S.Coleman). As far as the procedure, i just
removed the radiator and flushed away. Im not too sure about using purple power in the entire
coolant system, as it may ear the o-rings, etc. It may even be considered borderline using it in a
radiator, but my god it works so damn good.
al

----- Original Message -----
From: "Benjamin Harder" <vwtype53@yahoo.com>
To: "Allyn" <amalventano1@home.com>; "scirocco list" <scirocco-l@scirocco.org>
Sent: Sunday, June 10, 2001 1:19 AM
Subject: Re: rieger radiator/cooling problems SOLVED!


> Allyn,
>   This is great news!  Glad to hear that this has solved your problem...
> I have installed the low temp fan switch and the 80 degree thermostat and
> my 16v *still* will run kinda hot on a sunny summer day especially with the
> AC on... so I have thought about doing a good radiator flush and cleaning
> myself.  I haven't read all the posts on this subject, so could you give a
> quick recap of the problem solution...
> Like, did you actually remove the radiator to clean it?  And what is this
> "purple power" stuff that you flushed it with?  Not sure if I've heard of
> this before...
>
> Thanks...and great job!
>
> Ben
>
>
> --- Allyn <amalventano1@home.com> wrote:
> > You guys arent gonna believe this,
> >     I followed Chris' advice and dumped some "purple power" into my radiator.
> > 50/50 mix. Shake well.
> > Dump on sidewalk, and ooh, whats that, the entire sidewalk has turned rust
> > colored. I repeat again,
> > just as much rust once again. One more time for good measure, and finally the
> > rust dies off. I
> > couldnt believe this purple stuff! It got all of that crap out of it, even
> > after last nights episode
> > of draino and carbeurator cleaner (which i _thought_ had gotten it pretty
> > darn clean).
> >     I slap everything back together, fill it up, (using this special water
> > additive i got from
> > advanced for $25, came in a black square can looking thing). Start er up and
> > walk away. I want to
> > see just how hot this thing will get. after 15 minutes or so i realize the
> > fan has yet to kick on.
> > water temp is very close to the top line, oil temp at 115, and the water cap
> > relief is starting to
> > lift. Holy crap, what the heck is going on here!
> >     Right at that moment, the fan *finally* kicks on. after being on for a
> > mere 10-15 seconds, its
> > already blowing cold air from the radiator, adn it promptly turns back off.
> > What the heck, the damn
> > thing is overheating and the fan is kicking off after 30 seconds!!*&^$)*(&.
> > its as if theres no flow
> > through it, i think to myself. I get in the car and put rpm at 2000, fan
> > kicks on after 5 seconds,
> > fan stays on much more than 30 seconds as it was doing before. temp
> > IMMEDIATELY starts screaming
> > down. Takes a mere 3 minutes to get back down to the led (yes, it actually
> > went DOWN). A few more
> > minuts and oil temp is at 105. All of this and i was still sitting in my
> > driveway!
> >     Now i have my problem narrowed down to coolant flow through radiator at
> > idle condition only. Not
> > to mention my radiator is working a hell of a lot better than i've ever seen
> > a 16v radiator work,
> > well, when its got flow through it that is. I think that additive might
> > actually do something to
> > help, but with or without it, i still have crappy flow at idle.
> >     Then it dawns on me, as i listen to the harley-type exhaust. My damn idle
> > is too low. Thats why
> > the fan didnt kick on till the damn engine went critical. Such low flow
> > through it, the water was
> > getting cooled below the trip point of the sensor before it made contact with
> > it. As for the idle, I
> > thought it was at 800 as indicated on the tach, turns out it was at 600. I
> > raise it to 1000 by tach,
> > temp drops to slightly above top of led, oil temp hangs at 105.
> >     Whew!, idle overheat problems gone, now to check how well my newly reborn
> > cooling system works
> > on the move. Sitting at the now nice and low idle temperature, i start
> > driving. After going about 5
> > miles water gauge is already at center of led, and oil is down to about 95c.
> > This is just awesome!
> > This is all with the STANDARD thermostat and fan switch. I cant wait to see
> > how well this thing runs
> > when i get my hands on those 2 things.
> >     I must say im pretty happy now. I hate running a 16v hot. Damn things
> > will go forever if you can
> > just keep em cool. The only true tests that remain is getting on the highway
> > (where mine prev. ran
> > at 110c minimum at 100 mph, on the way to cincy even). Also it isnt a
> > terribly hot day right now, so
> > i suppose thats the other test i still have to run.
> > oh well, enough babbling, catch ya later guys.
> > 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 :)
> >
> >
> >
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> >
>
>
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