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Old 06-20-2012, 05:11 AM
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Replaced plug wires. Now I have a miss?

I replaced my plug wires and now it seems I have a miss. I made them custom lengths for better appearance. The following is my troubleshooting technique, but still confused.

1. Removed plug wires. I measured resistance with a multimeter from end to end of each wire. I had readings from 1.6-1.73ohms. Reinstalled dizzy ends.

2. Removed dizzy cap. Measured resistance readings from plug end to the terminals inside the cap. I basically measured the same resistance readings, 1.6-1.75ohms. So I know I don't have an "open" from the plug end to the cap.

My next step is to start-up, remove one wire at a time on the dizzy to see if I have spark and see if I get the "surge". I think this will rule out a fouled plug.

Do I need to reset the timing?

Any suggestions?
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Old 06-20-2012, 05:47 AM
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Just because your wire has resistance doesn'tr mean it's going to pass 50k volts. I've seen many wires in my days that were "physically and electrically" correct according to a meter, and yet did not pass current. My guess would be that your crimps are not sufficient on the ends you've put on.
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Old 06-20-2012, 06:59 AM
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routing.

Some engines reequire specific wire routing. The spark-current traveling thru one wire can induce Voltage-spark in an adjacent wire. And if the induced spark occures in a cylinder that is next to fire it can start an early burn
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Old 06-20-2012, 08:21 AM
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The first thing I would do is to check to make sure I didn't cross two wires. Sounds dumb but we have all done it. The next thing I would do is to take my longest old wire and use it to replace one by one my new wires. Try that first and see where that leaves you.
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Old 06-20-2012, 08:34 AM
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Quote:
Originally Posted by boothboy
The first thing I would do is to check to make sure I didn't cross two wires. Sounds dumb but we have all done it. The next thing I would do is to take my longest old wire and use it to replace one by one my new wires. Try that first and see where that leaves you.
Yeah, what he said. X2 I just bought an S-10 pretty cheap, the previous owner said he done a tune up and "it hasnt ran right since". I redone his tune up, only to find a plug wire not fully seated.
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Old 06-20-2012, 04:50 PM
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Found it! Garbage wires! I put my old ones back on and all is well! I'm going to can them and get model specific ones or pull one @ a time and find which one is jacked up. Probably just can them. Another one might start to act up. Replace plugs too. I'm sure one is fouled by now.

Thanks guys for all your input
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Old 06-20-2012, 05:16 PM
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What brand wires did you buy in the first place ?


Cole
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Old 06-21-2012, 04:31 AM
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Taylor wires I bet!
they suck!
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