Date:         Mon, 29 Dec 2014 21:51:36 -0500
Reply-To:     Eric Caron <ecaron1@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Eric Caron <ecaron1@COMCAST.NET>
Subject:      Re: rear heater core, drip drip ooze
In-Reply-To:  <BAY405-EAS37971F2063717DB8FBC1F79A05E0@phx.gbl>
Content-Type: text/plain; charset=utf-8

Thanks Dennis,

        I called it a ) ring because it is round.  but the actual ring is square cut like you describe.  It fit perfectly in the depression space provided on the valve side of the connector.  I hope I just need to tighten it a bit but I don’t want to over tighten and i feel like I’m reaching that point.

As for the engine temp  you pointed out to me a few summers ago that my van seemed to send coolant too soon so it is likely I have a needed improvement there!

Eric Caron 
85 GL Auto Westfalia 
 

> On Dec 29, 2014, at 7:58 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
> 
> The seal between the valve and the core is not a regular O-ring. It is a square cut ring gasket. While a real careful selection of an O-ring may work it needs to be just right so that it does not bow out the valve flange. The correct part number for that seal is 861819297. The dimensions are 20,3X2,4mm.  Proper working temp gauge and thermostat should get the gauge pointer centered or near the top of the LED. 
> 
> Dennis
> 
> 
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Eric Caron
> Sent: Monday, December 29, 2014 6:48 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: rear heater core, drip drip ooze
> 
> Hi Listers,
> 
>        Well almost fully successful on the rear heater core exchange but just a few more tips would be appreciated.
> 
> I was able to get out on some clear dry winter roads for a drive after replacing the rear heater core.
> 
> Good news no more coolant smell coming from the rear heater when turned on. 
> 
> I do, sadly, feel a slight ooze or drip coming from the bottom of the seem between the new core and the rear valve.  I had also noticed that this happened before I changed the core.  it first happened when I still had the old core attached but had wiggled it out of the fan assembly. 
> 
> I replaced the O ring when I replaced the heater core. 
> 
>        I don’t want to over tighten the two bolts but I gave them a extra turn tonight.
> 
> Also, when running the van the temp gage seemed normal as the pointer just touched the bottom of the LED at center.  I’m told by my driver that is the usual spot for my van in the past.  Interestingly the expansion over flow tank might actually be higher then before I did the exchange.  and though I had heat I thought it seemed not as hot as in the past.
> 
> So any tips on stopping the ooze or drip? 
> 
> any thoughts about what I might need to do to be sure the air is not still in the system?
> 
> I was so pleased to do this job so a bit bummed about that drip.
> 
> Eric Caron 
> 85 GL Auto Westfailia 
>