When the ignition firing on my '67 B showed absolutely no relation to the
timing marks, it was because the inner and outer halves of my crank pulley
(normally bonded together with a 30 year old rubbery bit) had declared
independence from one another. A quick trip to the wrecking yard for a new old
pulley fixed it.
> Next, I tried to adjust the timing with a strobe light, but if I
> came anywhere near the 'correct' timing, according to my Haynes manual, it
> would start missing. As I advanced it (the mark was no where near where
> it should have been, probably between one to three inches further down),
> it would fire regularly.
The following symptom on my 'B was due to a piece of rust propping open the
float chamber inlet jet. Excess fuel would overflow the main jet. It would idle
just fine for some reason, and run just fine over 3200 RPM or so, but the
mixture was much to rich to run at lower speeds. Perhaps your bit of dirt or
rust made it past the inlet jet and the mixture evened out.
> When I came to a light, it didn't want to idle, and almost
> died. I got on a small highway and cranked it up, it started to run
> better. The next stop, it again didn't want to idle. Then I pushed the
> RPM's really high for about a mile. When I came to another sign, the d*mn
> thing idled just fine, and it seemed to run fairly well from then on, not
> missing or thinking about stalling, but it doesn't seem to be running
> terribly well either.
Good luck,
Jerry Causey
1967 MGB GT
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