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Re: [Healeys] The 100 engine

To: Simon Griffin <simon_grif@msn.com> s=q20121106; t=1371830876; bh=dP5TAxY9YRbRChbxRpli2BP6/e03KKoFCTmRYiUY4ic=; h=Received:Received:Date:From:To:Message-ID:Subject:MIME-Version: Content-Type; b=rsv6tA5nh1SaP9LfcV5VMyZ65BhGxTVt9b7k1rsAUKBh2F4Qawf5+8/J+ygnGsftm wQlPX/18uwacofILVUjcMP2Ujm7mghH+4rLNuFZVWHArSzZEutRPjDMO0Ze+gLvf9+ gcqLMiNQCIwwED57ZfoKuStpGXH1mbHcXwdTSCn07rMOdWfmrKhnedNnUYfEWySZ6n A+WIxe8DIc+czQf30atEbDp9h4S+bVyUhXrOYKkY1gEEhNmUG5rC7akn9a9eaO9v6+ dyEA06sLW0hZ3TX/j+woM097E7Hw8eOiDEQVGADeG4YQPnKy3GNSSAPn5EvtZMmlTe oXPlc4rhxIt7Q==
Subject: Re: [Healeys] The 100 engine
From: Bob Spidell <bspidell@comcast.net>
Date: Fri, 21 Jun 2013 16:07:55 +0000 (UTC)
Cc: healeys@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
Others will provide good technical answers. Here's the psychological one: 

Since the head will be in your hands, take it to a good machine shop and get 
hardened seats and Stellite (or similar) exhaust valves installed. If you 
don't, you'll always wonder if you should have; if you do, well, you won't. 

Bob 

ps. I had hardened seats installed in my BJ8 at rebuild about 100K miles ago. I 
check the rocker clearances every 10-15K miles or so and, near as I can tell, 
the gaps haven't changed. 


-------------------------------- 
Bob Spidell - San Jose, CA 

----- Original Message -----


My attention is turning back to the 100. The MGB is now running to my 
satisfaction and will provide summer driving fun, so I can now focus on my 
real mistress!! 

I am going to pull the engine and and clean it up and inspect it. It has not 
run for a very long time so I don't really know what horrors I will encounter. 
So plan to strip down and rebuild the engine. Anyway, what is the current 
thinking on the head? 

Mine is still the original Westlake cast iron, leaded fuel era. Is it best 
to work with this head and use fuel additives or convert over to the modern 
unleaded head? Of course if it turns out that my head is cracked and 
un-useable the decision is somewhat made, but at least for now I am rather 
conflicted. On the one hand my heart says stay original, on the other, my 
head says that perhaps now is the time to upgrade the engine. I would really 
appreciate some insight into this? 

Thanks 
Simon 
Troy, IL 
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