(only I got this, so re-sent to entire list � I often do the same thing meownself, gotta hit "Reply All�")

Dang� he's gotta be right!

Anywho, when mine doesn't work, you can draw or blow air� this part's impossible to misinterpret.

 Eric
 Eric Wunrow Pictures
  
 303. 988. 8717
 VW@EricWunrow.com

On Oct 14, 2015, at 11:45 AM, David Baronet <1947al@gmail.com> wrote:

> Guys,....not a one way device. It pops off under overpressuring but sucks coolant back into the system when cooling off. Aone way "check" valve won't accomplish that.   David
> 
> On Wed, Oct 14, 2015 at 12:25 PM, Eric Wunrow <VW@ericwunrow.com> wrote:
> > Yes, mine are from Meyle.
> >
> > Jim, your inline valve idea is great!
> >
> >  Eric
> >  Eric Wunrow Pictures
> >
> >  303. 988. 8717
> >  VW@EricWunrow.com
> >
> >
> > <EW Email Sig.gif>
> >
> > On Oct 14, 2015, at 8:08 AM, Jim Felder <jim.felder@GMAIL.COM> wrote:
> >
> >> You are exactly right, the one-way feature on the valve is something I have
> >> know VW shops to argue about. When I had a 2.1, I would test them before
> >> leaving the parts place because so many of them didn't work out of the box.
> >> The "good" ones didn't last long, either. I suspect you might be buying a
> >> brand called "Meyle Germany" but that is just the brand name some company
> >> bought, and they could be made absolutely anywhere. You might try the
> >> dealers but good luck with that.
> >>
> >> One of these days, all vanagon drivers are going to be using that cap
> >> simply as a connection to a one-way valve from a third party, inline
> >> between the reservoir tank and the overflow tank.
> >>
> >> Jim
> >>
> >> On Wed, Oct 14, 2015 at 2:41 AM Eric Wunrow <VW@ericwunrow.com> wrote:
> >>
> >>> I'm a total rookie compared to you guys, but wanted to note I've had at
> >>> least three expansion tank (blue) cap failures in 23,000, full-time miles
> >>> over 26 months on the road. I believe the failures are somewhat related to
> >>> how many heating/cooling cycles they're asked to do.
> >>>
> >>> I only buy the German ones, and my test is if you can both suck and blow
> >>> on the cap, it's toast (please keep the jokes to yourself).
> >>>
> >>> My understanding is the cap should only release pressure one direction �
> >>> not two.
> >>>
> >>> Eric
> >>> Eric Wunrow Pictures
> >>>
> >>> 303. 988. 8717
> >>> VW@EricWunrow.com
> >>>
> >>>
> >>>
> >>>
> >>> On Sep 28, 2015, at 3:27 PM, Stuart MacMillan <stuartmacm@GMAIL.COM>
> >>> wrote:
> >>>
> >>>> Thanks Jim, the cap was replaced with an OEM cap when the water pump was
> >>> done 13,000 miles ago, and the overflow tank doesn�t show any evidence of
> >>> any spillage on or under it.  I�m thinking small leaks too, but I�d like to
> >>> narrow it down.  The 2.1 has a lot more hoses than my 1.9!
> >>>>
> >>>>
> >>>>
> >>>> Stuart
> >>>>
> >>>>
> >>>>
> >>>> From: Jim Felder [mailto:jim.felder@gmail.com]
> >>>> Sent: Monday, September 28, 2015 2:21 PM
> >>>> To: Stuart MacMillan; vanagon@gerry.vanagon.com
> >>>> Subject: Re: Missing coolant
> >>>>
> >>>>
> >>>>
> >>>> Old hoses leak microscopic amounts of coolant. Ive had it spray onto the
> >>> engine in such small quantities that it would evaporate before you could
> >>> see it. Tighten hoses, replace hoses is about all you can do. But you
> >>> didn't mention testing the pressure cap. That can send a good deal of
> >>> coolant into the expansion tank, which can drip on the road through the
> >>> overflow and you won't know it.
> >>>>
> >>>>
> >>>>
> >>>> Jim
> >>>>
> >>>>
> >>>>
> >>>> On Mon, Sep 28, 2015 at 4:11 PM Stuart MacMillan <stuartmacm@gmail.com>
> >>> wrote:
> >>>>
> >>>> Just when everything seems to be sorted out, it isn't.  Son's '87 is
> >>> losing
> >>>> over a quart of coolant every 400 miles, and I can't find any leaks.
> >>> Rear
> >>>> heater has been removed, and there is no odor from the front heater.  No
> >>>> drips anywhere-engine plumbing, heads, transmission cooler, radiator, or
> >>>> front heater valve.  No evidence of coolant mixing with either the
> >>>> transmission fluid or engine oil, and that much coolant would certainly
> >>> foam
> >>>> oil.
> >>>>
> >>>>
> >>>>
> >>>> I'm wondering if it's burning coolant, but in my experience failed
> >>> sealing
> >>>> rings in Vanagons lead to over pressurization of the system, and that's
> >>> not
> >>>> happening. It also runs great. I sometimes notice a faint smell of
> >>> burning
> >>>> coolant at the engine compartment vents, but I can't find anything
> >>> dripping
> >>>> on the exhaust when the system is pressurized.
> >>>>
> >>>>
> >>>>
> >>>> Would investing in a UV leak detection kit tell me anything?  It would
> >>> seem
> >>>> losing this much coolant would show up somewhere.
> >>>>
> >>>>
> >>>>
> >>>> Any ideas?
> >>>>
> >>>>
> >>>>
> >>>> Stuart
> >>>>
> >>>
> >>
> >
>