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Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!genrad!decvax!tektronix!orca!mako!seifert
From: seifert@mako.UUCP (Snoopy)
Newsgroups: net.auto,net.consumers
Subject: Re: No Leaded Gas -- Now What?
Message-ID: <655@mako.UUCP>
Date: Wed, 20-Mar-85 11:11:00 EST
Article-I.D.: mako.655
Posted: Wed Mar 20 11:11:00 1985
Date-Received: Fri, 22-Mar-85 23:53:22 EST
References: <132@ucbcad.UUCP> <147@tove.UUCP> <2053@sun.uucp>
Reply-To: seifert@mako.UUCP (Snoopy)
Organization: The Daisy Hill Puppy Farm
Lines: 31
Keywords: rotating valves
Xref: watmath net.auto:6183 net.consumers:2021
Summary: more to consider than hardened valves

Most engines have had hardened valves for years and years. no
problem there for most cars less than 20-30 years old. (antiques
are another story)  That doesn't means that no-lead is ok for them,
however.  For several years, many engines rotated the valves,
which reduced various problems.  Engines that rotate their valves
HAVE TO HAVE LEADED GAS. period.

When no-lead became popular/necessary, the engine designers had to
take out the valve rotators.  It's interesting to look at how various
companies accomplished valve rotation.  Detroit used rather complicated
Rube Goldberg type things, that appear to be a failure waiting to happen.
Turn the page and learn how Volkwagon did it.  They just put the
rocker arm slightly off-center.  Simplicity itself.  No additional parts
to fail, cost more, complicate assembly, etc.

So, before you feed your classic a steady diet of no-lead, check to see
if the valves are rotated.

As far as keeping bozos from putting leaded gas into cars with
cat-verters, they don't need to ban lead totally, just make unleaded
cheaper.


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