Best way to pinpoint a 'miss'

68keyblr · Mar 22, 2006

Anyone have creative ways to pinpoint the missing cylinder?

I know I can pull each plug and inspect, but I was wondering if anyone has a better way to do it.

iskwezm · Mar 22, 2006

what about using a timing gun on each wire checking for the flash?????

68keyblr · Mar 22, 2006

iskwezm said:
what about using a timing gun on each wire checking for the flash?????

Yep, that's a good suggestion...Thanks!

Keep 'em coming

1969mach1351 · Mar 23, 2006

My brother just told me that he put his car in the garage and turned the lights off and you can see each wire fire and if one is arching you can really see it. His were arching to the screws in the wire separators. Arching could cause a miss. I haven't tried it yet, we both have MSD wires.

limey66 · Mar 23, 2006

Dead simple, this one - with the engine running, pull each plug lead off and replace it in turn, the one that doesn't affect the running is the one with a misfire.

You might want to wear some decent rubber gloves just in case - the current is low, but the Voltage is high.

coolblue65 · Mar 23, 2006

limey66 said:
You might want to wear some decent rubber gloves just in case - the current is low, but the Voltage is high.

couldnt agree more with that comment....ask me how I know.

fvike · Mar 23, 2006

Super easy one - If you got headers, and not manifolds, just drip a drop of water down on the exhaust tube. If it doesn't vaporize, it doesn't fire on that cylinder. Of course the has to be running to make this work.

BDT 1967 · Mar 23, 2006

<quote>Super easy one - If you got headers, and not manifolds, just drip a drop of water down on the exhaust tube. If it doesn't vaporize, it doesn't fire on that cylinder. Of course the has to be running to make this work.</quote>

Thats a good one

68keyblr · Mar 23, 2006

Thanks Gents....you guys are great!

thehueypilot · Mar 23, 2006

Why don't you just pull the plugs and look for the one that has the most black soot on it?

krash kendall · Mar 23, 2006

thehueypilot said:
Why don't you just pull the plugs and look for the one that has the most black soot on it?

Or it may be wet with oil and gas.

You can also buy a spark tester. It plugs inline between the plug and the lead. It is transleucent and lights each time the plug fires.

doug68hoss · Mar 23, 2006

i used to do it this way. taking the plug wires off one at at time..but .taking it one step futher..taking one off and then leaving that one off..then going around the heads and take one off at a time...because sometimes it can be hard to hear a miss taking just one plug wire off at a time..but if you have two dead cylinders it is easier to hear..

ashford · Mar 24, 2006

use a temp gun on the headers after a short time of running

Best way to pinpoint a 'miss'

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