[s-cars] Overpressure in the cooling system

[Vincent Frégeac]

No oil over the coolant and, from my experience :(, a blown head gasket
will show coolant temperature well over the barely 70C I've got these
last snowy days. I remember now the tank nipple tread - thanks Tim - and
I'll check it soon. BTW, I don't think anything block the system as I
get a good flow of coolant from the return line. Am I right?


Vincent.

-----Message d'origine-----
De : s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com] De la part de Paul Friedenberg
Envoyé : 19 novembre 2002 00:26
À : jmcgee at ecentral.com; s-car-list at audifans.com
Objet : RE: [s-cars] Overpressure in the cooling system

In this instance, test for exhaust gas (CO2?)in the coolant (through
coolant
tank fill). However I wouldn't think this is the case, as he is not
reaching
operating temp, whaddya think?? See any white smoke in exhaust, or see
any
oil floating on top of coolant in resivoir?






>From: "Jim McGee" <jmcgee at ecentral.com>
>To: <s-car-list at audifans.com>
>Subject: RE: [s-cars] Overpressure in the cooling system
>Date: Mon, 18 Nov 2002 22:12:42 -0700
>
>Just saw this problem on a 200 20V and the problem was a blown head
>gasket. That is what put the excess pressure into the cooling system.
>
>Jim McGee
>
>
>
>-----Original Message-----
>From: s-car-list-admin at audifans.com
>[mailto:s-car-list-admin at audifans.com] On Behalf Of Vincent Frégeac
>Sent: Monday, November 18, 2002 8:22 PM
>To: 's-car-list'
>Subject: [s-cars] Overpressure in the cooling system
>
>Hi all,
>
>I'm still stuck with the same problem: My coolant tank seems to over
>pressurize. I had a first leak at the return hose junction with the
>tank. I first replaced the pressure relief cap. Same problem. Then I
>replaced the clamp on the return line. I found a crack on the hose,
>close to the hose end, so I put the clamp before the crack. Still the
>same problem. Actually, I'm running with the cap partially unscrewed so
>the pressure can escape by the cap.
>
>Any idea what can cause the problem. BTW, my S6 is running on the low
>temp side, seriously too low - but that's another story - so
overheating
>is not the problem.
>
>
>Vincent.
>
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