

| Subject: | Re: Missing coolant |
| From: | SDF ( aka ;jim lahey' - Scott ) |
| Date: | Wed, 14 Oct 2015 12:14:15 -1000 |
good to know. Thanks. On 10/14/2015 11:34 AM, Pat Spragge/RFAN wrote: > Still have the aluminum ones ( as well as the other plastic reservoirs) > $245 > > Pat > > > > From: "SDF ( aka ;jim lahey' - Scott )" <scottdaniel@TURBOVANS.COM> > To: vanagon@GERRY.VANAGON.COM > Date: 10/14/2015 02:27 PM > Subject: Re: Missing coolant > Sent by: Vanagon Mailing List <vanagon@gerry.vanagon.com> > > > > any cap or valve system has to do 2 1/2 things.. > > first....maintain pressure on the coolant, and release pressure if it > gets too high. > > then, > Have a 'suck-back' feature from the license plate / overflow bottle. > > just a one way valve won't do all that. > > I installed a Van Cafe- supplied all aluminum pressure tank with > conventional 'american style' pressure cap. > it was almost 100 % perfect in design and execution. > Don't know if they still sell them, that was a few years ago. > > On 10/14/2015 7:25 AM, Eric Wunrow 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 >>>>>> >
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