[s-cars] Gelling coolant
Pasqualoni, James E
james.pasqualoni at gs.com
Tue Apr 17 13:20:19 EDT 2007
Gisli,
I am late to this thread, so please excuse me if this has already been mentioned-are you sure there is no oil in the coolant, ie head gasket leakage?
Jim
-----Original Message-----
From: s-car-list-bounces at audifans.com [mailto:s-car-list-bounces at audifans.com] On Behalf Of Gísli Óttarsson
Sent: Tuesday, April 17, 2007 1:18 PM
To: Tom Green
Cc: s-car-list at audifans.com
Subject: Re: [s-cars] Gelling coolant
Tom:
I nearly responded to your previous message about de-mineralized water by commenting that that is what comes out of our cold-water taps here in Iceland. No such luck for the hot-water tap. This is so polluted by minerals and sulfur that you would think someone let eggs rot in your bathroom. Good for the teeth and the sperm-count, I suppose, but I would not dream of letting it anywhere near my Audi. And no, the car only recently arrived on Icelandic shores so it is a near certainty that this is not what's ailing the cooling system.
Gisli
On 4/17/07, Tom Green <trgreen at comcast.net> wrote:
>
> I think your caution is don't shock the engine by removing the coolant
> and/or giving it a big dose of cold water. But, it doesn't require a
> long cool-down period before draining since the temps are equalized by
> running at idle. I would be cautious about dumping a lot of cold
> water from a hose with lots of pressure and flow into the reservoir.
> Besides, you are likely to cause the thermostat to close and really
> slow down the process. Use some warm water to temper the water if you
> are nervous about it. Add slowly in any case, you won't use that much
> per flush. I would suggest using some of that Icelandic geo-thermal
> water but I've seen the mineral content. :-) Hmmmm, could that be
> what's in the coolant now? :-)
>
> Tom
>
>
> > Date: Tue, 17 Apr 2007 09:30:20 -0400
> > From: Mark Pollan <mark.pollan at verizonbusiness.com>
> > Subject: Re: [s-cars] Gelling coolant
> > To: s-car-list at audifans.com
> > Message-ID: <000a01c780f4$8b9100e0$910e9283 at mcilink.com>
> > Content-Type: text/plain; charset=iso-8859-1
> >
> > Best/required to let her cool down before you drain and refill no?
> >
> > Mark
> >
> > -----Original Message-----
> > From: s-car-list-bounces at audifans.com
> > [mailto:s-car-list-bounces at audifans.com] On Behalf Of G?sli
> > ?ttarsson
> > Sent: Monday, April 16, 2007 7:13 PM
> > To: Tom Green
> > Cc: s-car-list at audifans.com
> > Subject: Re: [s-cars] Gelling coolant
> >
> > This seems straightforward enough. I'll probably have a go this
> > week-end, if weather permits.
> >
> > Gisli
> >
> > On 4/16/07, Tom Green <trgreen at comcast.net> wrote:
> >>
> >> I'll have to defer to Dave Dawson on the details, but, you have the
> >> right idea, and the Finish should be fine. This is dishwasher
> >> detergent, not the dishwashing detergent for hand-washing dishes.
> >> I suggest about a half cup or two times the normal dishwasher
> >> amount. Drain the coolant first and refill with water and add the
> >> Finish.
> >> You don't want to operate the car, just run the engine until it
> >> gets up to temperature, then about 15 to 20 minutes at idle to let
> >> the cleaners work in the system including the heater. Then drain
> >> and refill with water, bring to temperature, drain and repeat until
> >> the coolant water is perfectly clear. It may take several times to
> >> remove all the old
> >> coolant and the dishwasher detergent. Even the low sudsing
> >> dishwasher detergent
> >> can foam some, so it is important to completely flush all traces
> >> from the cooling system or a slight amount of foam can cause an air
> >> block in the system and a localized over- heating can occur. Who
> >> knows if it is compatible with coolant?
> >> I suspect those fleet maintenance guys have a power flushing
> >> machine to expedite this process.
> >> It is a good practice to use de-mineralized (soft) water for the
> >> make-
> >> up portion of the
> >> coolant.
>
>
>
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