Date: Sun, 5 Sep 1999 11:48:31 -0700
Reply-To: David Marshall <david@VOLKSWAGEN.ORG>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: David Marshall <david@VOLKSWAGEN.ORG>
Subject: Re: [Syncro] 91 overheating & temp guage question
Content-Type: text/plain; charset="us-ascii"
While all this was happening and the engine was turned off, did you hear
and "gurgling" in the rad or in the engine? Did the rad get hot or even
warm to the touch? We had a hell of a time bleeding the system in our 84
westie - it would bleed and run perfect for days. Then wham! Overheat -
the temp needle would go all the way up though, but this is an inline and
not a boxer. When this happened the rad was stone cold and the return
line to the thermostat was cold. Basically there was a small pin hole leak
in the coolant resivior that allowed air to get in and an air pocket formed
at the water pump... since we got the pin hole fixed no problems. Perhaps
this is happening to you can your heater is acting like a rad and keeping
the temp sensor "happy".
At 12:38 PM 05/09/1999 -0300, Malcolm Stebbins wrote:
>From: "Malcolm Stebbins" <Malcolm.Stebbins@MSVU.Ca>
>
>My 91 syncro over-heated, My question: How do I test the Temp Gauge?
>has anyone ever heard of temp gauges going only half-way up and not
>continuing to register a 'hot' engine?
>
>At first I was understanding as I was going 5 KPH in granny gear on a hot
>day (33 C) for 20 minutes and the rad fan was cycling on high. When I came
>to an idle (deep in the back woods), the engine quite and I had to let it
all
>cool for 20 minutes to get it to go again, it would start but not idle,
like a
>piston was rubbing in the cylinder.
>
>But then driving back home on the highway - as I down-shifted to turn on to
>my street, it quite again. - but again all was OK after 20 minutes. This
was
>un-forgivable!
>
>During the whole trip, the temp gauge NEVER went above the red dot (1/2
>way mark)!!!!!
>
>Oil level is OK, There is/was coolant in the reservoir, today I 'blead' the
>radiator and only a tiny wisp of air came out. At idle, there is coolant
being
>pumped back into the reservoir.
>
>The ONLY thing I can think of is that (re a previous post) I had
everything out
>of the van. and I wanted to test the rear heater for leaks and for this
trip I had
>the valve open and I did not have the rear fan 'on'. I believe that this
might let
>hot coolant circulate back into the engine. (no coolant leak at the rear
>heater).
>
>I have been on the list for 2 years and I do not recall this being
discussed. I
>might say that the van has worked flawlessly in the 2 years I have owned
it.
>Thanks, Malcolm
>
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>------------------------------------------------------------------------
>
>
-- David Marshall Quesnel BC, Canada --
-- 78 VW Rabbit, 80 VW Caddy, 84 VW Westie, 85 VW Cabriolet --
-- 87 Audi 5000 Quattro, 88 2.0L VW Syncro Double Cab --
-- David's Volkswagen Home Page http://www.volkswagen.org --
-- Fast Forward Autobahn Sport Tuning http://www.fastforward.ca --
Note: VOLKSWAGEN.ORG is not affiliated with VWoA or VW AG
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