Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (August 2009, week 4)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Tue, 25 Aug 2009 06:45:11 -0700
Reply-To:     brady <dofunk@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         brady <dofunk@YAHOO.COM>
Subject:      Re: R rear heater blowout - stranded
Comments: To: mcneely4@COX.NET
In-Reply-To:  <19212812.6715.1251169928883.JavaMail.mcneely4@127.0.0.1>
Content-Type: text/plain; charset=us-ascii

OMG!!!! Its a fricken heater people!!!! It will not have any adverse affect on the heating or cooling of the engine. It will not make the engine run to cool it will not make the engine run to hot it will not like green eggs and ham either! Now can we move onto something new and exciting like wheels and tires!!! I just couldn't resist... OK I think I'm better now Brady

----- Original Message ---- From: Dave Mcneely <mcneely4@COX.NET> To: vanagon@GERRY.VANAGON.COM Sent: Monday, August 24, 2009 11:12:08 PM Subject: Re: R rear heater blowout - stranded

So, some say joining the hoses prevents the engine from warming up adequately. Others say joining the hoses prevents the engine from cooling adequately. The lack of agreement seems to indicate that someone doesn't know what is happening. But, fact is, with the rear heater off, there is no effect of the heater on cooling. the VW engineers expected this to happen. With the rear heater on, there is some effect on cooling. The VW engineers expected this to happen. Joining the hoses is an in between situation -- there is circulation, like with the heater on (some cooling), but there is no radiator (less cooling than with the heater on, but more than with it off (perhaps). I can't see that it makes a hill o'beans whether one plugs or joins the hoses. joining is less prone to failure, though, as it does not cause pressure to build up.

Until I can find some actual cause and effect phenomenon regarding joining the hoses, I'll leave them that way. Now, Scott's idea that going to the root of the hoses, and blocking the flow there does sound reasonable, but more trouble. But it seems that the heater is just a loop on the flow to the radiator. I can't see how, as some have suggested, thta joining the hoses keeps coolant from going to the radiator.

Dave Mc

On Mon, Aug 24, 2009 at 9:45 PM , Don wrote:

> By joining them you create a shorter return route for the hot coolant > that does not include the radiator (where the liquid is "cooled"). By > blocking the two hoses all coolant now goes to the radiator before > returning to the engine. With the heater core in the circuit it acts > as a mini radiator removing heat from the coolant (and blowing it into > the cabin) before it returns to the engine. > > For the most effective cooling of the "coolant" it needs to run > through the radiator or an intact heater core with the fan on. > Cheers > Don > > > On 24-Aug-09, at 6:35 PM, miguel pacheco wrote: > >> Correct me if I'm wrong, but what you describe as a 'short circuit' >> pretty much simulates coolant flowing through the heater core. >> I have read here, on this forum, that, once the core is removed, the >> in and out hoses can either be blocked off, or joined. >> Miguel >> >> On Mon, Aug 24, 2009 at 3:47 PM, Don Spence wrote: >>> Not a great idea as this just creates a "short circuit" for the hot >>> coolant to bypass the trip up to the radiator and allows HOT coolant >>> to return to the engine. Better to plug or clamp off both heater >>> hoses thus sending all the hot coolant to the radiator. (Thanks to >>> Dennis for pointing this out to me a couple of years ago.) >>> >>> On 24-Aug-09, at 3:22 PM, Automatic digest processor wrote: >>> >>>> Date: Mon, 24 Aug 2009 16:47:01 -0400 >>>> From: Jeff Lincoln Subject: Re: rear heater blowout - stranded >>>> >>>> Matt, >>>> >>>> I'm not saying your blocking the hoses will hurt anything - because >>>> I really >>>> don't know - it might. >>>> >>>> What I did when this happened on an '85 I used to own was to get a >>>> length of >>>> high temp hose and fasten it between the send and return hoses you >>>> speak of. >>>> Creating a loop so the coolant could still flow. That "repair" is >>>> still in >>>> place because a friend of mine now owns that van. >>>> >>>> At least that way you could keep traveling with no worries and get >>>> a new >>>> heater core at your convenience. >>>> >>>> Good Luck. >>> >> >> >> >> -- >> Miguel


Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!


Return to the archives @ gerry.vanagon.com


The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.