I noticed by accident a while back that my 79B with overdrive transmission
idles
better when I have the shifter in 3rd gear. Place the shifter in 1st, and the
thing
definitely idles worse. I'm guessing there's a switch that changes the timing
when
the shifter is in the upper two gears.
My question is this: Does this device advance or retard the timing?
I know my timing at idle is not factory spec. Last time I tried setting it to
spec, the
car ran noticeably worse. After a couple days of that, I turned the
distributor a little
more counter-clockwise (I forget now which way that effects the timing) to
return it
to a better-running state. I'm curious about the gear-indicator timing switch,
thinking that may be a clue in getting the car to idle better. (Checking the
valves
and some major carb checking are on the list of things to do, the latter when I
can
relegate the car to non-daily-driver status in case something goes terribly
wrong.)
--
Keith Gernert
79 MGB
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