Quote:
Originally posted by USMC302
OK, sorry it took so long to post back. Wiht the vacuum lines between the dist terminals and the wires, there was spark all the way around. We also had a toll that went between the wire and the plug with a light in it to show spark, again all were firing, but here is the wierd thing still....when we put the test light through the vacuum lines to ground out the spark and listen for the drop in idle there was no drop at all in 1,2,6,& 8, but we saw the spark.
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Okay, first of all, to kill a cylinder while doing it my way with the vacuum hose, you don't need to pierce the vacuum hose. Just make sure the alligator clip is grounded, and test the bulb by touching the positive battery terminal. If it lights, then start the engine, and just touch the test light probe tip to each vacuum hose (inbetween the cap and the wire(s)). That should kill that cylinder. Pull the test light away, and that cylinder should start firing again. You can test all 8 cylinders in less than a minute, without shutting the engine off.
Please try it that way, and confirm for me the results.
Take care,
-Chris