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Spark plug wires   Message List  
Reply | Forward Message #67982 of 68535 |
So I have been having intermittent spark and electrical problems with the
GTX for a while now. Tried new plugs, new plug wires, fould out two of the
plugs and replaced those again. Was doing something completely unrelated and
got an unexpected zap from the lead that goes from the coil to the
distributor, which is only a month old. I grab the volt meter and the
insulation is reading battery voltage while the car is running, as well as
every harness near by, even the coil bracket and housing. Luckily I had the
spare from an old set of NGK wires and replaced it with that. The running
issues all immediately dissappeared. I inspected the faulty lead and there
were no abrasions or breaks in the insulation, no signs of shorting to
anything near by... How can rubber/silicone be conductive like that?? The
only thing I can think is that it is very humid here today.

-Oliver
88 GTX
St. Louis, MO


[Non-text portions of this message have been removed]




Thu Jul 16, 2009 2:10 am

olgtx
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Message #67982 of 68535 |
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So I have been having intermittent spark and electrical problems with the GTX for a while now. Tried new plugs, new plug wires, fould out two of the plugs and...
Oliver Love
olgtx
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Jul 16, 2009
2:10 am

I think you just had a worn out lead. It happens. I went through 4 or 5 sets of NGK's over the years, because they do wear out and you get a miss when you get...
Greg D
gpd323
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Jul 17, 2009
1:16 pm

Defective out of the box you say. I can see that happening for sure. I did have one set of the 8.5mm Magnacores that went tits up on me early on. Tried to get...
Greg D
gpd323
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Jul 17, 2009
1:47 pm

That sounds like the typical spark plug failure we all will experience at one time. That’s not many miles on the Magnacores seeing how we spend top dollar...
Greg D
gpd323
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Jul 17, 2009
1:53 pm

That "typical spark plug failure" may be what I'm experiencing too. It seems to happen most under boost and it feels like a miss followed by a surge in power,...
Mercury Rebelle
mercuryrebelle
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Jul 18, 2009
10:31 pm

Try a new set of spark plug wires and see what happens. A miss under boost can be related to poor plug wires and or plug gap. But the GTX has always been happy...
Greg D
gpd323
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Jul 18, 2009
11:07 pm

... And use factory oem NGK or Magnacore race wires and pretty much nothing else. I have never met an engine that is more picky about sparkplug wires. --Jay W....
jtheballoonist
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Jul 20, 2009
4:25 pm

Does anyone know of good source for buying silicone vacuum hose, preferably in black? Thanks much. [Non-text portions of this message have been removed]...
Mercury Rebelle
mercuryrebelle
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Jul 21, 2009
10:52 pm

Good question! Other than eBay, I don't have a good source anymore. I miss the independent parts stores/jobbers. Will you please make sure to post the answers?...
A & K Gorodetzky and ...
lizardcatz
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Jul 21, 2009
11:01 pm

I would just buy the rubber vacuum hose from the local autoparts store or hardware store. From: 323gtx@yahoogroups.com [mailto:323gtx@yahoogroups.com] On...
Greg Downing
gpd323
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Jul 22, 2009
12:50 am

Why do you prefer rubber over silicone? I thought the silicone hoses were more temp resistant and held vacuum/boost better, no? ...
Mercury Rebelle
mercuryrebelle
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Jul 22, 2009
2:51 am

I think the rubber hose will last you another 10 years. Why spend extra on silicone? I have used rubber vac hose for 20 years now and have replaced some here...
Greg D
gpd323
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Jul 22, 2009
2:56 am

This is where I was planning to get mine:   Hose Techniques (310-320-2660) AEM www.Samcosport.com  Thermaflex Greddy RacePart Solutions   Jim     ... ...
Jim Chittenden
s1elise190
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Jul 24, 2009
12:37 am

I think this is true too.  Even if it's near a high-heat source, some Thermo-Wrap on standard rubber hose is probably plentry reliable for the next decade or...
Jim Chittenden
s1elise190
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Jul 24, 2009
12:43 am

If you have any blowby issues, the silicone will be less likely to absorb oil. However, keep in mind that even silicone will absorb oil over time so those "7...
David Kern
imprezars1999
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Jul 24, 2009
1:02 am

The silicone hose is also larger in diameter than a comparable rubber vacuum hose. To me, the tidy narrow diameter rubber hose is desired. Greg Downing ...
Greg D
gpd323
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Jul 24, 2009
1:03 am
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