The consensus on the Land-Rover list (if there can be such a thing) is that
it depends upon how hard you run the engine. On an old Series Land-Rover you
are running around 4000-4500 rpm at 60-65 mph (getting up there for an old
farm implement) and folks that do that on a regular basis appear to have
more of a problem with unleaded fuel. Some people don't seem to have any
problems while others do. When my engine was redone I did have the seats put
in but there was no abnormal wear upon teardown.
--
Stephen West-Fisher
Coastal Data Systems
727.599.4271
http://www.coastaldatasystems.com/
-----Original Message-----
From: mgs-bounces@autox.team.net [mailto:mgs-bounces@autox.team.net] On
Behalf Of Denise Thorpe
Sent: Sunday, February 22, 2009 6:06 PM
To: mgs@autox.team.net
Subject: Re: [Mgs] Unleaded fuel and Cylinder Head
BlankHi Tom,
My '67 MGB has 330K miles on it and I've never made any modifications to the
head for unleaded fuel. I bought the car in '79 with 100K miles on it and
have rebuilt 3 engines for it, the first when I first got the car. No
removed
head has had excessive valve seat wear and I don't use any additives. Most
of
these miles were in California. I know there are listers out there who have
had valve problems with unleaded gas but I just haven't had that experience.
Maybe it's because my car has the low-compression engine or the fact that I
always use a 160 degree thermostat. Or maybe because most of those miles
were
with the top down.
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