Date: Fri, 5 Jan 2018 00:34:55 +0000
Reply-To: "Jim. Felder" <jim.felder@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "Jim. Felder" <jim.felder@GMAIL.COM>
Subject: Re: Thermostats especially in colder weather
In-Reply-To: <CAGydU8TqehZJ73U+yfMSeJxuK4AbYckbVOBZk6rhMEvN12f+yQ@mail.gmail.com>
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What's your recommendation for a Diesel 1.6 turbo, Dennis, if not the same?
Thanks,
Jim
On Thu, Jan 4, 2018 at 4:44 PM Jason <uberhare@gmail.com> wrote:
> Fuel economy. You will burn more fuel if not at the correct operating
> temp.
>
> Jason
>
> On Thu, Jan 4, 2018 at 5:22 PM, Toomey Douglas <drt@uoregon.edu> wrote:
>
> > This has been an interesting thread. Two years or so ago a new radiator
> > was put in my 87 van and after that the temperature gauge ran
> consistently
> > below the red indicator light; prior to the new radiator it ran on the
> high
> > side of the red light. This did not really concern me, until recently,
> > when I noticed that it is harder to get the cabin warm in the winter.
> >
> > I had mistakenly thought the new radiator was more efficient. From this
> > thread, it seems that the thermostat may not be working well. Except for
> > the slight lack of heat, is there any downside to my gauges indicating a
> > cooler temperature for running?
> >
> > Thanks,
> >
> > Doug
> >
> >
> > > On Jan 4, 2018, at 1:24 PM, Dennis Haynes <d23haynes57@HOTMAIL.COM>
> > wrote:
> > >
> > > Of course in colder weather it will take longer for an engine to warm
> > up. With a thermostat that cracks open to early it may never warm up.
> Most
> > vehicles with small engine do not have 5 gallons of cold coolant
> available
> > so even if a stat opens early they still warm up. Another reason is that
> > the intake air used for combustion is also colder so a lot of cooling
> > occurs just from intake air. This is a real problem with diesels as they
> do
> > not have throttles so every piston stroke takes in the full volume of air
> > and at idle there is just small amount of fuel burning to warm it.
> > >
> > > However, your engine still uses the mixing approach and the heaters
> > alone have a lot capacity for cooling the engine. If the temp gauge seems
> > to only go to some point lower than normal it could be a bad or lazy
> stat.
> > >
> > > Dennis
> > >
> > > From: Neil N [mailto:musomuso@gmail.com]
> > > Sent: Thursday, January 4, 2018 3:12 PM
> > > To: Dennis Haynes <d23haynes57@hotmail.com>
> > > Cc: vanagon <vanagon@gerry.vanagon.com>
> > > Subject: Re: Thermostats especially in colder weather
> > >
> > > Thanks for that brand suggestion Dennis. Though I'm running a different
> > VW engine in my Vanagon, I have to wonder if the thermostat is part of
> the
> > reason my heater is barely adequate in cooler temps (e.g. 0ยบ C) Amazon
> also
> > shows a "Mahle Original TX...." for my engine.
> > >
> > > Though my engine has a different cooling system routing, it seems that
> > in colder weather, my temp gauge needle to take longer to get into
> > position. I thought that was normal. Seems not.
> > >
> > > Neil.
> > >
> > > On Thu, Jan 4, 2018 at 11:52 AM, Dennis Haynes <
> d23haynes57@hotmail.com>
> > wrote:
> > >
> > > ..... I just installed a Mahle TX 24 87D. First road test, WOW! Granted
> > it is now ~50 here and sunny. Up to temp, gauge needle dead center in ~3
> > miles. I will be stocking these. And man the heat works again.
> > > You can get them here.
> > > https://www.amazon.com/gp/product/B00D3DH4J6/ref=oh_aui_
> > detailpage_o01_s00?ie=UTF8&psc=1
> > >
> > > Dennis
> > >
> > >
> > >
> > >
> > > --
> > > Neil n
> > >
> > > Blog: Vanagons, Westfalia, general
> > >
> > > 1988 Westy Images
> > >
> > > 1981 Westfalia "Jaco" Images, technical
> > >
> > > Vanagon-Bus VAG Gas Engine Swap Group
> > >
> >
>
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