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Ignition advanced, can't adjust, part II 700 1986

posted by  dylant on  Thu Apr 10 01:52 CST 2003
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last visit: Tue Oct 16 15:08 CST 2001
[RELATED]

Thanks for telling me I'm not crazy about the pulley. I figure if I can turn the motor over by hand by turning the crank pulley, it's probably okay. Maybe I'm wrong. The timing mark, however, always shows up right where I expect it under the strobe.

As far as the sensors causing timing changes- they can be big. The thermal switch associated with A/C causes 15 degrees advance at idle, throttle switch closed. The CTS can call for 12 degrees, I think. But anyhow, they all check out. The CTS, Knock sensor, and thermal switch all test out fine.

I'd be glad to look under the timing belt cover- I agree that eyeballing at this point just won't do. What am I looking for? Lining up the marks on the belt, or something else?

I know people are always quick to blame the ECU, but I'm wondering if I should swap in a known good one just to get that out of the way.

Thank for the help-
Dylan






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