Hi Dylan :
Dylan Pedersen wrote:
>
> I'm attempting to make my recently acquired 1963 TR 4 with ZS CD175 Carbs
> pass a emissions test in the State of Idaho. (The car is titled as a '65,
> thus forcing me to go through the process, '65 is the cut off year).
Have you thought of having the title corrected ? Emission standards
should be based on 'model year' or year of manufacture, not year of
first sale. Bill Piggott's book says the first car made in 1964 was
CT28701, so if your number is lower, it should be relatively easy to
argue your case.
> Does anyone know the Dwell reading I should be looking for to confirm the
> points are set appropriately? Everything on the engine is stock.
60 +/- 3 degrees, according to my TR4 factory workshop manual.
> Also, when checking / setting the timing with the timing gun, I was planning
> on disconnecting the vacuum advance and shoot for TDC at Idle. Is this
> correct, or is there a better way to set it up?
Factory specified timing is 4 deg BTDC. Note that using a light is
actually considered less accurate, since the centrifugal advance is
allowed to start as soon as 450 rpm, less than the normal idle speed.
There's no need to disconnect the vacuum advance, it doesn't do anything
at idle.
Randall
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