Date: Mon, 31 May 2010 10:41:05 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Formerly Rich Running 1.9l WBX Now Running Hot
In-Reply-To: <AANLkTil9elR7Wj9tEvfPLaJS3qQfS4ruS3OGG-gQz2wR@mail.gmail.com>
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Maybe the gauge is now reading properly and normal! Depending on tolerances
center to just above the LED is normal. Below the LED is not.
As for bleeding no reason to go through gymnastics and raising the front
actually makes things harder.
1) Engine cold or least cool. Open both heater valves.
2) Have plenty of premix coolant available, ready to pour.
3) A friend helps but no needed.
4) Open bypass bleed on thermostat or H-pipe on 1.9.
5) Pour as coolant as possible into pressure tank, (one with the pressure
cap). Allow time for coolant to run down.
6) Start engine and rev/hold at 1,800 to 2,000 rpm. Use screwdriver under
throttle to hold it.
7) Keep pressure bottle full.
8) Open radiator bleeder.
9) When fairly steady flow of coolant comes out of bleeder, close it. Does
not have to be perfectly air free but should be a steady flow.
10) Finish topping off pressure tank and install pressure cap.
11) Let engine return to idle speed. Install small hose to recovery tank and
top it off.
12) Monitor recovery tank for a few days. It will drop slightly as system
gets rid of remaining air.
All this needs to be done before engine warms up. Once warm you will have to
fight coolant vapor. The real trick is the engine revving so the water pump
can push the coolant up to the radiator. If this take more than 10 minutes,
stop, have another beer and go back later.
Be sure your pressure cap is good.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of C
B
Sent: Sunday, May 30, 2010 2:53 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Formerly Rich Running 1.9l WBX Now Running Hot
Thanks to the suggestions from Zoltan, John, and others about both
replacing the Temp II sensor AND checking several of the
grounds-to-cylinder head connections, the rich running issue seems to
be solved. That is, Cunegonde is idling normally - slowly and seeking.
But now... running very hot with a lot of air and very little coolant
in the engine hoses. I have both rear and front heat off. Both of the
coolant tanks/overflow reservoirs are full. The idiot gauge shows the
temp going up past the center while idling @ 800-1000 rpm. If I run it
at 2000 rpm, the temp gauge will move slightly towards cool, but not
the usual needle at the right-hand mark on the cool end of the gauge.
Bad thermostat (oh no, must empty and bleed the whole system?!), and
or needing a major bleed? Can I get some of the air out via the valve
on the h-pipe, before jacking her up and bleeding from the radiator?
--
Bretts
1983 1.9l WBX Ivory Westfalia "Cunegonde"
