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Rotor observations

To: Healeys <healeys@autox.team.net>
Subject: Rotor observations
From: "Steve B. Gerow" <steveg@abrazosdata.com>
Date: Fri, 02 Jul 2004 10:11:33 -0700
I have an original Lucas embossed-letter cap and what I take to be an
original rotor.

It is also embossed with "Lucas" and is a  symmetrical design with a
T-shaped brass piece as opposed to the P-shaped pieces on the new ones. The
brass piece is held in  place in a form-fitting recess with 2 built-in
plastic studs which are melted into rivets. It clears inside the cap by
about a millimeter.

The new rotor by UK Healey mentioned in Patton's post appears from his photo
to have the brass piece held in place by one similar melted stud. This looks
like a winner.

The new ones appear to have drive-rivets, but I suppose they could be cast
in place. To me the drive-rivet is the weak point of the replacement parts
and the UK rotor is likely to be more reliable because it won't have the
stress cracks formed by driving a rivet into a brittle medium.
-- 
Steve Gerow
Pasadena CA
59 BN6





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