Date: Mon, 24 Jan 2022 15:12:54 +0000
Reply-To: "ddbjorkman@verizon.net" <ddbjorkman@VERIZON.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "ddbjorkman@verizon.net" <ddbjorkman@VERIZON.NET>
Subject: Re: Problem Solved: On road, Having problem, coolant related
In-Reply-To: <CAKbau50=SiKQPgnU=MY-gqCEtYKY=DPCyh6v7KXzvzh91z2P2Q@mail.gmail.com>
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MarkThose trailers have no hope of going to many campsites where your syncro, or any Vanagon, would have no trouble going to. Easily.
Dave
-----Original Message-----
From: Mark McCulley <markmcculley@GMAIL.COM>
To: vanagon@GERRY.VANAGON.COM
Sent: Mon, Jan 24, 2022 9:46 am
Subject: Problem Solved: On road, Having problem, coolant related
Indeed, the problem was caused by a broken connection at the terminal that
connected to the sensor. Thanks again to Ken and Dennis!
We enjoyed our time at Pacific Beach State Park, even though it was quite
cold at night, sunny 50F days made up for it. I did experience a bit of
camper envy with all the trailers there, all larger and all I presume with
bathrooms. Many, I estimate maybe 1/3, looked brand new, hitched to brand
new trucks. Pandemic purchases I presume.
-Mark
On Sat, Jan 22, 2022 at 6:34 AM Dennis Haynes <d23haynes57@hotmail.com>
wrote:
> Is it possible that you have a gauge-connection problem? If the engine was
> really going cold it would seem the oil temp would also drop especially if
> still using the original oil to coolant heat exchanger.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of Mark
> McCulley
> Sent: Friday, January 21, 2022 10:36 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: On road, Having problem, coolant related
>
> I don’t know specifics on the thermostat but it was installed by a shop
> that specializes in Vanagons. I will ask them when I take it back for
> repair.
>
> We continued to destination, temp gauge was all over the place though
> never too hot. I could not correlate with anything including turning front
> heat on and off. Oil temp stayed steady at around 200F. Ambient air temp
> was 45F not very cold. I will check the bypass valve tomorrow.
>
> Thanks,
> Mark
>
> On Fri, Jan 21, 2022 at 4:42 PM Dennis Haynes <d23haynes57@hotmail.com>
> wrote:
>
> > As the Vanagon has such a massively, oversized cooling system along
> > with an extremely large heater core, getting hit with cold outside
> > air, keeping the engine up to temperature can be a challenge during very
> cold weather.
> > VW became aware of this early on and the fix was the series "F"
> thermostat.
> > This stat features a delayed but fast acting response to temp and the
> > disc that seals the is further gasketed to prevent any bypass while
> > closed. So do you have the correct t-stat? Further, for the correct
> > stat if not of the Vanagon specific design, the lower disc can be too
> > large diameter and cause the stat to wedge and get stuck open. Also,
> > as the bypass will close too early from this excessive cooling will
> > also result from the lack of mixing the hot coolant leaving the engine
> > with the cold coolant coming from the radiator. The thermostat set up
> > is really a mixing valve and part of the goal is for the coolant to
> > always be flowing through the engine keeping the heads and case at the
> same temperature.
> >
> > Next, on top of the thermostat is that small hose and bypass valve.
> > Make sure that valve is closed.
> >
> > Try closing the heater valve to see if that brings the temp up some
> > and next step is block off part of the radiator.
> >
> > Dennis
> >
> >
> > -----Original Message-----
> > From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of
> > Mark McCulley
> > Sent: Friday, January 21, 2022 3:18 PM
> > To: vanagon@GERRY.VANAGON.COM
> > Subject: Re: On road, Having problem, coolant related
> >
> > Thanks Ken. Not optimal, I know but is it safe to continue? Loaded up
> > for
> > 2 days camping with wife and dogs. 75 miles to destination, 40 to get
> home.
> >
> > Sent from my iPhone
> >
> > > On Jan 21, 2022, at 12:11 PM, kenneth wilford <kenwilfy@gmail.com>
> > wrote:
> > >
> > >
> > > Sounds like thermostat has failed open.
> > >
> > > Ken
> > >
> > >> On Fri, Jan 21, 2022, 3:04 PM Mark McCulley
> > >> <markmcculley@gmail.com>
> > wrote:
> > >> This is a weird one.
> > >>
> > >> Coolant gauge started going LOWER while driving at 65mph for 30 min.
> > Pulled over to check it out, by then gauge was like it was a cold engine.
> > >>
> > >> -GW expansion tank is full.
> > >> -One of the 2 hoses from engine to radiator is cold.
> > >> -Radiator is cold.
> > >> -No coolant leaking.
> > >> -Oil looks good
> > >> -I opened bleed screw on radiator and no air, just coolant.
> > >>
> > >> After stopping 10 minutes I started van and temp came up to normal
> > >> and
> > radiator got hot. Then a get running a few minutes the temp gauge went
> > back down.
> > >>
> > >> I recently had the entire cooling system renewed, new everything.
> > >>
> > >> I have the rear heater core out and both hoses are plugged
> > >>
> > >> Ideas?
> > >>
> > >> -Mark
> > >> 87 Westy
> > >>
> > >>
> > >>
> > >> Sent from my iPhone
> >
>
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