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Spark Plugs

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Old 04-14-2005, 12:03 PM
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Well, lately the FD has been running a little funny.

First of all, it's running a PFS Purple box with a Profec. Tuned REAL rich (11:1 afr @ 12 lbs @ sea level, I'm at 5200 ft.) So I think the plugs are getting used and abused. The 3k hesitation is there, but that I'm feeling is more of a miss at all RPM, crusing speed. What I noticed is that when I'm really on the throttle, it screams, but when I'm at one RPM, or with light-throttle application, I'm getting a bit of hesitation. This happened all of a sudden, so I assume it's from the plugs going bad. It hasn't gotten any worse, and my AFR's still peg out 10:1 on the narrow-band meter. Between my walbro pump, the reman engine and the PFS box, I doubt it's fuel.



Does this sound like a plug problem? The last time they were replaced was nearly 20,000 miles ago.
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Old 04-14-2005, 12:05 PM
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In the time that you spent typing that you could have just changed the plugs and found out if it helped.
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Old 04-14-2005, 12:05 PM
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haha! Yeah, I'm bored at work.
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Old 04-14-2005, 12:11 PM
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Bah, I clicked on this thinking he was shopping for hair implants..........
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Old 04-14-2005, 12:12 PM
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Thanks for the help *******. Can someone at least point me to a source for plugs? Also are those HKS iridium deals any good?
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Old 04-14-2005, 12:15 PM
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Stop at a dealership on the way home. Your problem is likely more about fouling the plugs over time, so why pay extra?
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Old 04-14-2005, 12:30 PM
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Stealership! Ugh! What about NGK's from Vato-zone?
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Old 04-14-2005, 12:34 PM
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I've never found anyone other than the dealer that stocked rotary plugs. Maybe it's different in your area.



I did have a shop order me in plugs, had to buy ten and they all had to be the same. Price per plug ended up being about the same.
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Old 04-14-2005, 12:43 PM
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Dizzo'h!
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Old 04-14-2005, 12:47 PM
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I called my local Advance Auto parts and they have 14 NGK trailings and 10 NGK leadings in stock at $5.48 ea.
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