Bob, Annice,
Vizard talks about the uneven bearing wear of high mileage 1275s in his
book on page 368 of the 2nd edition. The solution is performed at APT by David
Anton. It is called wedging. The counterweights are put back in balance with
the pistons and corners where stress is concentrated receive larger radii.
Anton charges $195 for this operation.
Mike Maclean-60 Sprite
Bkitterer@aol.com wrote:
> List,
>
> While at the machine shop today saw an article on 1275 cranks which claimed
> that these cranks had to much weight around the journal center lines. That
> this extra weight caused uneven bearing wear. It was interesting because
> they pictures of this wear was a very good match to the odd wear patterns on
> the bearing that we just removed. The suggested solution was to remove
> counter weight material near the journals yielding a more triangular shaped
> counter weight. Anyone heard of this or tried it??
>
> Bob and Annice
> 1960 Sprite (Mk IV indiguise)
> 1966(7) Sprite Mk III (in progress)
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