[T3] Timing Light

[Jim Adney]

On 13 Jul 2017 at 20:58, Daniel Nohejl wrote:

> Here´s a weird one: I went to use my timing light today to verify a
> few things and something strange happened. As always, I hooked the
> light up to the + side of the coil and grounded it where I always do.
> Suddenly, the engine started misfiring every few seconds and I
> couldn´t get any accurate readings.

Does the strobe flash work? (Does it at least flash?)

Most timing lights have just 3 connections to the car: + & - power, and an 
inductive clip that goes around the #1 SP wire. Does this have more? Seems 
like it would have to, if it measures dwell, and I don't know how it can 
measure advance, unless there's some other input. That comes to 5 wires, at 
least in my mind.

If you have more than 3 wires, try disconnecting any, other than the 2 power 
wires. (And make sure that you're not clipped on the wrong side of the coil.)

You could also try taking your power directly off the battery. I liked the idea 
of using a separate battery, but you probably don't have one handy.

You could also try clipping the inductive pickup on a different place, or even, 
just as a test, onto a different SP wire.

-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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