David: My thinking may be a little fuzzier than usual tonite, but could you
possibly have set the static timing one plug wire out of phase by accident?
Tom
----- Original Message -----
From: <DLylis@aol.com>
To: <6pack@autox.team.net>
Sent: Wednesday, May 13, 2009 9:31 PM
Subject: [6pack] TR6 timing advance
>I find myself kerfluxed. I am helping a friend sort out some running
> issues with a 70 TR6. The car was running poorly and there appeared to be
> some
> electrical gremlins, so we proceded to sort it out. We first established
> a baseline by determining TDC was in fact zero degrees on the damper
> markings and that the valves were properly positioned for an ignition
> cycle. We
> then set the crank for static timing and static timed the distrbutor with
> a
> test light.
> Because of some electrical gremlins we had to run some external wiring
> (electric fuel pump) to make sure that all potential problems in the
> harness
> were removed from the equation. We then tried to start the car. No
> dice.
> Spark is present and fuel is present so the marriage between the two
> (ignition timing) became suspect. While cranking the car over we rotated
> the
> distributor until the car fired and ran, tweaked the distributor, and got
> it
> to idle just OK with good throttle response and smooth run up to where we
> took it (3000 rpm).
> I then put a timing light to it at about 1200 rpm and the timing scale is
> completely off the charts. The last number I can see is 24 and it is
> about
> an inch advanced from the indicator. My next task is to put an advance
> timing light on it and see what the advance actually is, but I expect it
> to
> be real high. My first thoughts are that the mechanical advance in the
> distributor is toast, but I have a few doubts about that as well.
> This car is running points. Please don't tell me to put electronics in
> it
> as we took them out and put in fresh ignition parts to establish the base
> line. All ignition parts (except distributor body; mechanical advance,
> etc.) have been cross checked against alternate parts to make sure there
> are not
> defective "new" parts in the equation.
> As I said, I find myself kerfluxed. Comments?
>
> David Lylis
> 69 TR6 CC26160L
> 60 TR3A TS74461LO
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