Date: Sun, 30 May 2010 16:18:48 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Formerly Rich Running 1.9l WBX Now Running Hot
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re
Can I get some of the air out via the valve
on the h-pipe, before jacking her up and bleeding from the radiator?
I just leave that H pipe bleeder valve open a small amount for say , a week.
That tiny passage is so small it's likely to be block with crud even ...
And in my opinion that tiny bleed between the two main pipes adds up to
nothing ..
so just leave it partially open for a while, like part of 'normal operation'
.
bleeding the radiator ...
sure.
but ...I have done this about 300 times...
take a running vanagon , open up part of the cooling system...whether
changing a t-stat or an entire engine ...
and all you do for about half a dozen warm up/cool down cycles, is top up
the pressure bottle when it's cooled back down and there is an air space
there. Just top that up over 6 or 7 warm up/cool down cycles...
and it will be plenty well bled enough for regular use.
Sure...there might be a very small air space at the top of the radiator, but
not enough to make a lot of difference..
'Maybe' if it's hottest summer, with big loads and long hills ..there
might be something to be gained by bleeding to that last Nth degree, but
'normally' .....you don't have to 'go nutty' bleeding at the radiator.
Does your radiator fan work ?
Scott
----- Original Message -----
From: "C B" <cunegonde.van.westfalia@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, May 30, 2010 11:53 AM
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"
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