> > No. It is a part of one of the rotational sensors in the
base/housing.
> > The rotor part of the topmost sensor has a color indicating of
going
> > through a very high temperature, and the stationary plastic part
with a
> > metal contact (I do not know the name) has small cracks. I don't
know
> > how these rotational sensor work. It would be wonderful if someone
can
> > explain it.
>
>
>
> Have a look at these drawings:
> http://www.tegger.com/hondafaq/distrotor.html
>
> What number is it on the LOWER drawing?

It is #4, the housing. Did you see there is a smaller rotor fixed on
the shaft, and to its left there is a bigger bent plastic piece. They
are one of the CYL/TDC/CRANK sensors in the distributor. Do you know
how they work? Can a misreading from these sensors cause no sparks?