[Diy_efi] Spark - timing light

[Jim Butterfield]

Hello Ashley, old style timing lights had a spacer
that would be put on top of plug and then the wire on
top of that, then the timing light clamped onto this
spacer ( looked more like a long tightly coiled
spring) but new modern timing lights have a clip that
goes around the spark plug wire look at the attached
link...

http://www.snapondiag.com/viewer.asp?id=12



--- Ashley Evans <hoshy at hoshy.co.uk> wrote:

> 
> 
> John Gross wrote:
> > It's very true that spark in free air means
> nothing in an engine that's
> > trying to run, and that's due to the extra energy
> required to ionize the
> > heterogeneous, pressurized gaseous mixture inside
> the cylinder.  What I
> > would typically do to check for spark is to have
> all of the plugs and wires
> > installed, and use a GOOD inductive light and look
> for consistency on each
> > cylinder.  If the engine runs, but has a miss, you
> can usually find a
> > cylinder-specific spark problem by holding the
> engine in the rpm range with
> > the miss and test this way.
> 
> <snip>
> 
> Inductive light?
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> 



		
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