Well, you probably have to have power to it for the optical sensor to work
-- it's not a passive mechanical system like points. It may not be powered
up until the alternator is charged.
BTW I don't know about turning the engine by hand with the ignition on --
you could lose fingers that way...
on 4/13/04 4:49 PM, Thomas J Pokrefke at pokrefke1@comcast.net wrote:
> The PO of my car installed an Allison XR-700 electronic ignition module in
> my MGB. There is, among others, a red and black wire coming out of the
> control box: the red goes to the (+) side of the coil, the black goes to the
> (-) side.
>
> When turning the engine by hand, there is no change in voltage or continuity
> from the black wire. The ignition was on, and as the slits passed the
> electric eye, I would have expected to see the a change in the black wire,
> similar to points opening or closing.
>
> Do I not understand the principle of the ignition circuit, or is something
> else amiss?
>
> Thomas
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires
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