Date:         Tue, 6 Jan 2004 18:20:26 -0500
Reply-To:     David Brodbeck <gull@GULL.US>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Brodbeck <gull@GULL.US>
Subject:      Re: flow to radiator from water pump   How fast should it be?
In-Reply-To:  <20040106223559.49624.qmail@web41307.mail.yahoo.com>
Content-Type: text/plain; charset=us-ascii; format=flowed

gary hradek wrote:
> David,
>      You make a very good point but as big as those
> hoses are they are under pressure all the way back to
> the back while the bleeder hole has zero pressure???
> I know that if I had an equivalent size hole in the
> blue cap in the back it would spray like a artery.

Actually, if you had a hole in the cap the system wouldn't pressurize,
and you'd get almost nothing out of it.  I once drove about 20 miles
with my expansion tank cap loose before I figured out why I was running
slightly warmer than usual.  I lost maybe a cup of coolant, just what
thermal expansion pushed out the top.  Unlike the radiator there's no
flow in this location to create dynamic pressure.

--

David Brodbeck, N8SRE
'82 VW Diesel Westfalia
'94 Honda Civic Si -- For Sale
'86 Volvo 240DL wagon