Date: Fri, 23 Apr 2010 10:35:31 -0700
Reply-To: Roger Whittaker <rogerwhitt1@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Roger Whittaker <rogerwhitt1@GMAIL.COM>
Subject: Re: Water Cooler System Design Flaw Workaround?
In-Reply-To: <u2i3965d35f1004221914q4f51c8cbw475b7947d0364682@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
dear work around
thats what i always thought the vanagon cooling system required
a pressure sensitive relief valve ... just like the hot water tank in my
basement has ...
same thing on top of hot water boiler for base board and radiator heated
homes and buildings
... the waterboxer cooling system reminds me a great deal of the old cast
iron radiator system
/... each rad with a bleed valve and a shut off (read zone valve as the
newer systems have )
when i was coming back this spring with my new to me 84 i would have full
steam at the plastic tank and full freezing to the touch at the rad ... when
high up in the mountains ... in the cab i had intermittent heat
replaced motor at halseys in portland and they bleed so that no further
issues ...
this weekend i put in first top up of antifreeze ... third tank of fuel
since i got van and it is a daily driver ...
so far no untoward heater issues
yours
On Thu, Apr 22, 2010 at 7:14 PM, Tobias Gogolin <usertogo@gmail.com> wrote:
> I suppose the most important purge point on my '84 is the one in front on
> top of the radiator (are there others?). I would have to get a hose nipple
> with 90 degrees that fits there or cut back the bracket thats obstructing
> above the screw!
> I don't know, would be interesting to measure the pressure in the cooling
> system!
> Maybe a simple over pressure relieve valve could purge but that would be
> when its already overheating, and then its not going to have enough water
> to
> work properly either. So maybe better would be some kind of flotation valve
> that purges if there is no liquid?
> To simply run a hose back to the tail may result in the same problem that
> I'm trying to solve which is if water gets into that hose it will probably
> air lock!
>
> Today I did another short test drive after purging at a nose down slope and
> I still have the same problem that had already disappeared in test drives
> last week, what i'm talking about is that a few seconds after starting the
> van the light begins to flash in the instrument rises quickly to max.! I
> wonder what this is now! Maybe the oil in the coolant is making the level
> sensor think, lack of water? Since no water gets into the oil (yet) i'm
> still putting of that costly repair of those head gaskets that Scott kindly
> has explained about!
>
> And yes I love my Vanagon, its suspension is great and its a very
> comfortable car! Just cant wait to convert it to electric power! Lord let
> it
> rain $$$ !
>
>
>
>
>
>
>
>
> On Thu, Apr 22, 2010 at 5:44 PM, Alistair Bell <albell@shaw.ca> wrote:
>
> > As David says, there is such a thing, or a similar thing in the 21.
> > wasserboxer. On top of the thermostat, breather valve which connects
> > t stat housing to purge "ring" that runs around engine.
> >
> > You can run engine with that valve open to be sure of air purge. Its
> > not a case of coolant pressure -> atmospheric press, but rather
> > higher to lower.
> >
> >
> >
> > alistair
> >
> >
> >
> >
> >
> > On 22-Apr-10, at 5:19 PM, Tom Hargrave wrote:
> >
> > I understand but the Mercedes bleed line is under coolant pressure so it
> > stays open all the time and it actually tees into the bleed line that
> > comes
> > off the radiator.
> >
> > The two work together to keep the cooling system gas free unless you
> > have
> > such a head gasket leak that the small diameter tube can't keep up.
> > But by
> > then you shouldn't be driving the car anyway.
> >
> > I wonder if the same setup can be installed in a vanagon?
> >
> > Tom
> > www.kegkits.com
> >
> >
> > -----Original Message-----
> > From: David Beierl [mailto:dbeierl@gmail.com] On Behalf Of David Beierl
> > Sent: Thursday, April 22, 2010 6:49 PM
> > To: Tom Hargrave
> > Cc: vanagon@GERRY.VANAGON.COM
> > Subject: Re: Water Cooler System Design Flaw Workaround?
> >
> > At 06:49 PM 4/22/2010, Tom Hargrave wrote:
> >
> >> Mercedes did just this in their 80's V8 SLs. They ran a small purge
> >> line from on top of the thermostat line over to the surge tank. The
> >> solution works really well.
> >>
> >
> > So does the 2.1l Vanagon setup, except that it has a valve to open it
> > while
> > bleeding and then close.
> >
> > Yrs,
> > D
> >
>
>
>
> --
> Tobias Gogolin
> Tel. Movistar (646) 124 32 82
> Tel. Telcel (646) 160 58 99
> skype: moontogo
> messenger: usertogo@hotmail.com
>
> Blog: http://zeitgeistensenada.blogspot.com/
>
> You develop Sustainable Ranch Technology at
> http://tech.groups.yahoo.com/group/SURA-TECH
> an Open Source Electric Motor/Alternator at
> http://groups.yahoo.com/group/Performance_Axial_Flux
> and an Open Source Motor Controller at http://groups.yahoo.com/group/GoBox
>
--
roger w
From Proverbs:
Under three things the earth trembles, under four it cannot bear up: a
servant who becomes king ...
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