the battery to the coil and it still didn't fire, then check for spark
at the plug wire end. If none, then check at the coil output. Simply
put, if the rotor is turning and the sparks are _not_ flying - you
clearly have an electrical problem. I.e., either the coil, ignition
module or cap and/or rotor are defective.
If the engine is turning and the sparks are flying but at the wrong
time... such that the engine still does not fire - then what Flick said
about the timing gear may be quite apropos - and it is likely a
mechanical problem.
If the distributor rotor is not turning, then you have a serious
mechanical fault (i.e., camshaft and/or timing chain is likely
defective/broken).
I like to test the coil output by unplugging the coil wire from the
distributer cap. I hold the business end of it close to ground while
cranking to see if the coil output sparks. To do this safely, you can
shove a common 1/4"-wide screwdriver blade into the plug at the end of
the coil wire and hold the blade of the screw driver about~1/8" to 1/4"
inch away from a rocker arm cover, bold on the AC compressor, or any
ground source. Pick a place where a spark will be highly visible.
As an aside - if Flick's suggestion is true... and you are running an
original FOMOCO-equipped cam gear, you may have more work on your hands
than just replacing the cam gear. In my experience, I have found those
nylon particles can work their way up into the oil sump, where they get
sucked up through past the oil inlet screen. This has another negative
affect on the health of the engine.
If you are lucky, it will only lock up the oil pump - this will break
the oil pump drive shaft. If you're unlucky, it could be worse.
You'll also have to drop the oil pan and clean it out as well as replace
the timing gears and chain. DAMHIKT!
Worse, a piece of nylon makes it through the inlet screen and past the
pump, it has a 50/50% chance to bypass the filter and work its way into
an oil duct within the block, where it can severely limit oil to a journal.
Be prepared for what you may find ... when you go looking for such things.
Cheers -
Michael
steve1965gt wrote:
> Jon, it's time to start (no pun intended!) over with this problem. Hold a plug wire close to a ground, do you have a spark while cranking? Is the rotor in the distributor turning when cranking the engine? When #1 piston (passenger side, front cylinder)is at top dead center on the power stroke, are both valves closed and is the rotor pointing to the correct plug wire? Are the metal ends of the plug wires really firmly seated into the distributor and onto the plugs? Is enough fuel getting to the intake manifold without flooding it? Is the gas good or is there water in it?
>
> Some of my suggentions are pretty basic and I'm not trying to insult your intelligence, but I've made enough silly mistakes troubleshooting engine problems to write a book. You've made some changes since this "no start" issue bagan, so going back to the beginning makes sense. Let us know what the current state is.
>
> Good luck!
>
> -Steve-
>
>
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