Re: wishbone pivot bushes

[Orin Eman <orin@wolfenet.com>]

> Why, they don't really support any weight.  The bonding issue is that
> the rubber is attached to the metal at it's inner and outer
> circumference, the outer is fixed solid to the arm, once torqued the
> inner is fixed solid to the subframe.  Torque in the air and your rubber
> part will get twisted ("pre-loaded") when it is lowered and the wheels
> move to normal position.  Then the rubber will age prematurely.

Worse, as the suspension is compressed, they are twisted more than
they were designed to - expect early separation of the rubber
from the metal.  Once it separates, friction is going to chew up
the rubber very quickly and the bushing will be very wobbly.

> With my old style ones, the outer surface is just the rubber and so I
> hope (!) they will turn a bit and seat themselves so they have no
> pre-load to damage them.

The old style ones should turn.  Is there even a warning in
the old Bentleys?

Orin.