Peter Zaborski wrote:
> I have a question for those on the list who have some automotive electrical
> knowledge...
>
> I have a multi-function digital multimeter which has a frequency function.
> It measures the frequency as cycles per second (Hz) based on (I think) the
> pulses it gets from whatever source it is hooked up to.
>
> I hooked it up to my TR6 coil's negative post while the engine was running
> to try to verify my mechanical tach (car has the stock engine, stock Lucas
> distributor and aftermarket Ingnitor electronic ignition module -- I think
> this is a single spark ignition module). I did get some readings which
> appear useful. However not wanting to jump to any conclusions, I wonder if
> anyone who knows about such things cares to describe what readings I should
> have gotten in cycles per second connected to the coil's negative post.
>
> Looking forward to any replies.
>
> --- Peter Zaborski CF58310UO ---
A 6 cylinder engine fires 3 times per crankshaft revolution. Divide the
frequency of
the coil output by 3 and that should be your RPM.
Good luck!
Brian Schlorff '61 TR-4 '64 TR-4 '72 TR-6 '79 Spit
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