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Re: [Fot] Unleaded and valve seat damage: Myth???

To: Mark Eginton <markconsultation@twcny.rr.com>
Subject: Re: [Fot] Unleaded and valve seat damage: Myth???
From: Ted Schumacher <tedtsimx@bright.net>
Date: Sun, 14 Feb 2010 12:40:12 -0500
Mark, your machinist is correct.  Our machine shop does several hundred 
heads a year, including about 100 each year for us (MG, TR3 - TR8, 
Healey, etc.)  With this kind of statistical universe, we see very 
little recession.  Occasionally yes, but in the minority.  We always use 
stainless exhaust valves on all heads except TR7 and TR8 - they were 
already fully no-lead compatible.  Ted


Mark Eginton wrote:
> As an old car buff for too many years, I can't say I have ever lost a 
> valve to unleaded gas. From flatheads through muscle cars including 
> vintage motorcycles and 40 years of driving this Triumph. I thought I 
> would be safe on this engine and go ahead and do the valve seats when 
> an old machinist I like to use told me its all a myth and that he has 
> never seen valve seat damage either. "I'll be glad to take you money..."
>
> Just thought I would ping the list before closing on this decision.
>
> Best,
>
> M
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