On Wed, 07 Dec 2011 00:48:07 +0000, The Natural Philosopher
wrote:

Dave Plowman (News) wrote:
In article
,
thirty-six wrote:
Iron/copper electrode spark plugs still benefit from dressing every
3000 miles and the distributer rotor is still a better system than
double ended coils or split tension systems. Unfortunately the rotor
and cap do need attention each year due to erosion and corrosion and
probable replacement at three years or 20,000 miles. It still gives a
bigger bang, and that's what counts when doing your own servicing.
It's an insignificant expense countered by improved engine efficiency
and the high price of fuel.

What sort of car are you talking about that still has a dizzy?

most do. Or many do. No contacts but still one 25kv coil feeding one of
four (6 or 8) plugs..via a rotating rotor arm. there may also be a
sensor there to monitor crank position. But thats more generally on the
camshaft

Are you sure you are in 2011 and not in some time warp 20 years in the
past?

I'd love to know which manufacturers are stil sticking to a
distributor rather than coil on plug/double ended coils and a crank /
cam trigger.


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