Interesting story bout Ken Miles.... Donald Healey had to do the same head
lapping procedure at Bonneville in 56 to get into the Two Club... his Blown
streamlined six cylinder Healey had a head gasket failure... so they hand
lapped it with compound... cleaned it up... and he ran an average of
203mph.... Then some chicken farmer drove the car on the 10 mile circle for
a on hour average of 156mph....
Fun stuff..... I love the history of this sport as well as the fact that
several of the folks on this list have been there for most of it....
Keith ( look up chicken farmer in the dictionary and I think Carrol Shelby's
name is next to it.... )
----- Original Message -----
From: "Bryan Savage" <basavage@earthlink.net>
To: "Rick Byrnes" <Rick@rbmotorsports.com>
Cc: <land-speed@autox.team.net>
Sent: Thursday, February 27, 2003 2:30 AM
Subject: Re: MLS Gaskets
> That's what I thought Rick.
> You reminded me of an MG-TC that Ken Miles drove at the Palm Springs
> road race. ('52??)
> It was supercharged and because they couldn't find a head gasket that
> wouldn't blow,
> they hand lapped the head to the block and didn't use a gasket.
>
> Thanks Rick,
> Bryan (x-flagman)
>
>
> Rick Byrnes wrote:
>
> >You are right Bryan.
> >Flatness, waviness and finish need to be very controlled when using the
> >multi layer gaskets, just like we didn't have in the days of the embossed
> >steel shim gaskets. I see this technology as the next logical evolution
of
> >the old steel shim, but this one works. Embossment is better, and rubber
> >coatings work well.
> >The very fine finish actually required a new way of looking at the
surface
> >but in any language it is smooth as a babys bottom, and not many
> >bumps.....Waviness is another critical requirement, and is almost never
> >accounted for with the old ways of looking at machining specifications.
> >Since I use metallic "O" rings to seal combustion on the turbo motor, my
> >surface requirements have been the same. I finally found a machinist to
> >give me the finish that the metal to metal joint requires. They typically
> >use 7000rpm cutter speed with a very slow feed rate on my aluminum
cylinder
> >head.
> >
> >Rick
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