Thanks, Max. Just the information I was looking for. I
guess I should have thought of the tach drive myself.
Larry Hoy
> -----Original Message-----
> From: owner-mgs@autox.team.net
> [mailto:owner-mgs@autox.team.net]On
> Behalf Of Max Heim
> Sent: Saturday, December 04, 1999 4:28 PM
> To: Larry Hoy; MG List
> Subject: Re: MGB engine identification
>
>
> The Clausager book has the info you need. The one
> big clue I'm aware of
> is the tach drive. 18G and GA engines (the 3-main
> ones) had a mechanical
> drive for the tach, off the rear of the cam.
> Later ones have a electronic
> tach.
>
> Larry Hoy had this to say:
>
> >What is the best way to identify the "vintage" of an MGB
> >engine that has no ID plate. This is an earlier
> engine; the
> >block is machined for a generator, not
> alternator and it is
> >a "pre-smog" setup. I really would like to know
> if it is a
> >five main or three main engine. It presently is
> in a 1964
> >car and is running. I know that the 1964's came with a
> >three main but this may not be the original engine.
> >
> >Any help would be appreciated.
> >
> >Larry Hoy
> >http://pages.prodigy.net/larryhoy/
> >
> >
>
>
> --
>
> Max Heim
> '66 MGB GHN3L76149
> If you're near Mountain View, CA,
> it's the red one with the silver bootlid.
>
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