Date: Sun, 19 Oct 2003 18:06:50 -0700
Reply-To: Rob Scott <rob@UNIXGUY.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Rob Scott <rob@UNIXGUY.COM>
Subject: Re: [WetWesties] Sealing goop on cylinder sleeve inboard ends?
In-Reply-To: <fb.484f49e4.2cc48ab0@aol.com>
Content-Type: text/html; charset="us-ascii"
<html>
<body>
At 05:47 PM 10/19/2003, BAdams6456@aol.com wrote:<br>
<blockquote type=cite class=cite cite><font face="Arial, Helvetica" size=2>In
a message dated 10/19/2003 5:07:30 PM Pacific Daylight Time,
rob@unixguy.com writes:<br>
<blockquote type=cite class=cite cite>I know that it may upset some of
the <br>
faithful, but this whole water jacket thing is a stinky design
IMO.</blockquote><br>
Makes you wonder why VW didn't stick with their proven air-cooled engine
concept and just make improvements to that design based on evolving
state-of-the-art in air-cooled engines. Many small aircraft are still
powered by air-cooled engines, why not post 1983 VW Vanagon
campers?<br><br>
Bill<br>
'76 ASI Riviera</font><font face="arial"> </font></blockquote><br><br>
Easy answer, actually. Emissions. Air cooled engines can't
maintain the tighter tolerances of a water cooled engine and require more
room between parts for temperature expansion and contraction. That
makes for a lot less potential to control the fuel burn and reduce
emissions while maintaining (or increasing, in the best designs) power
output for a given displacement.<br><br>
The motorcycle world (where I'm most familiar these days) has been
undergoing this transformation for years. There are fewer and fewer
air cooled engines around. When they can (reasonably) sell as many
bikes as they want to make, why did Harley bother to build the V-Rod
(engined designed in part by Porshe, by the way)? It's a
fore-runner of the day when they'll have to disappoint the faithful and
cease offering an air-cooled big twin. BMW has moved toward a more
highly evolved air/oil cooled engine since 1993 for its big twins, but
it's only a matter of time before that engine is completely superceded as
well.<br><br>
Cheers.<br>
Rob<br>
<x-sigsep><p></x-sigsep>
<font face="arial">
It's never too late to have a happy childhood.<br>
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-<br>
Rob Scott,
<a href="mailto:rob@unixguy.com" eudora="autourl">mailto:rob@unixguy.com<br>
</a> Langley, Washington on Whidbey
Island (a suburb with a moat)<br>
</font></body>
</html>
| 
