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to much boost, to low of octane fuel, carbon buildup on pistons, ignition timing is to far advanced. take your pick
Engine running hotter then 220 degrees can cause valvetrain noise. Bad fuel can also cause valve noise / PINGING sound. Ignition timing to high / Advanced to far, can also cause engine noise.
yes, backfiring is always due to ignition or timing problems. Backfiring through the carb can be a symptom of a lean condition.
Could be a vacume leak or a sticking clutch or accelerator edal or cable. Timing could also be a problem. I advanced my ignition timing just a little bit and the problem went away.
bad ignition timing.
if advancing more than factory specs it can cause pre ignition (spark knock) that in turn can cause internal engine damage
Yes, a loose distributor can rotate so that the ignition timing for the engine is lost.
There are none. Ignition timing is not adjustable. Ignition timing and spark advance are handled by the engine controller module and the ignition control module, with inputs from various sensors. The engine controller is located by the passenger kick panel. The ignition controller is the thing the ciol pack mount on...it runs about $110 new. The ignition controller is often the cause of rough running, or idle problems as the spark advance function tends to crap out on this model of DIS ignition. Producing a constant error code, and therefore a constant check engine light.
Ignition is required for an engine to work. Failure of ignition would prevent the engine working.
After replacing minor components that would cause the vehicle to stall such as the fuel filter. Advance the ignition timing a few degrees and the engine will run better and there will be no more stall.
Since the compression is good I would not expect it to be a burnt valve. It could be timing if the timing chain has excess play. I would also check the ignition module and the engine control module. We had a 1986 Chevy Celebrity that had an ignition problem that cause it to run badly and backfire. The service engine soon light was blinking but not posting a code. We changed the engine control module and it fixed the problem.
Yes, sometimes a faulty ignition switch can cause the engine to not fire. Also, a bad spark park can the engine to not fire.