In a message dated 9/26/01 4:38:36 PM Eastern Daylight Time,
> Keep in mind that when you turn off your ignition, your plugs can no longer
> supply a spark, so the timing can have nothing to do with run on. However,
> hot plug can be acting as a glow plug to continue to ignite the charge in
> cylinder, similar to what happens in a diesel engine.
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Correct. But if the ignition timing is sufficiently off, the cylinders,
plugs, head and valves get hot enough to cause dieseling. So improper timing
can cause run-on, even if indirectly.
SCCA Philly Region Rally Steward
'92 Mitsubishi Expo LRV Sport