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#1
02-07-2005, 09:18 PM
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spark plug
can someone tell me what is the perfect or recommended gaping for a 1998 sl1 saturn with genuine saturn spark plug.I know i can check under hood but dont know if there has been any change made by the manufac. thank you
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#2
02-08-2005, 01:33 AM
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Re: spark plug
0.040 for all S-series, saturn tryed 0.060 briefly in 96 but quickly went back.
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#3
02-08-2005, 12:02 PM
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Re: spark plug
I have a '96 and I gap to the owners manual recommended .060. I never knew that all others were .040. Makes sense really. I don't even have a gap guage that big so I end up using a drill bit every time. I will try the .040 and see if the idle improves.
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#4
02-08-2005, 10:01 PM
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Re: Re: spark plug
Quote:
hi can you let me know if better i will gap it at .040 if it is.thanks guys
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#5
02-09-2005, 01:46 AM
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Re: spark plug
do it to 0.040, there was a TSB on the 96s, go to your saturn dealership and you can even get a new emission sticker for the corrected 0.040 gap.
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#6
02-09-2005, 08:28 PM
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Re: Re: spark plug
Quote:
THANKS SIERRAP615 youre help was appreciate
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#7
02-09-2005, 10:02 PM
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Re: spark plug
although performance plugs are recomended to be gapped at 0.045 can somone explain that to me?
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#8
02-09-2005, 11:24 PM
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Re: spark plug
i have not heard of that, some of the turbo guys go to 0.035, but thats something else
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#9
02-15-2005, 12:03 PM
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Re: spark plug
New Denso spark plugs gaped to .040 have been installed. I changed the oil and the valve cover gaskets while I was at it. I couldn't tell after driving it that the car ran any differently. The old Autolite plugs (0.060 gap) had just been cleaned a few weeks ago so the car was running pretty well to begin with. I found no evidence of oil leaking past the valve cover gasket either. The old one was very hard and brittle where it met the head but it appeared to be holding oil.
What else would cause oil to fill up in the #1 spark plug socket?
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#10
02-15-2005, 01:38 PM
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Re: spark plug
the valve cover gasket is the only possiblty .... unless in some million to one shot the valve cover or head had a crack in it at just the right spot.... but i have never known that too happen and you would have seen it.
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#11
02-16-2005, 03:56 PM
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Re: spark plug
Re-gapping the plugs hasn't made any difference so far. The engine still bogs down to 500 rpm, then stumbles back up to idle at 900 when I press the clutch approaching a stop. It's been doing that for years though especially with the air conditioner on.
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#12
02-16-2005, 10:46 PM
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Re: Re: spark plug
Quote:
HI there just like to mention after reading all the quote for my problem i still could not believe it would have been my ect causing my problem but sure enought i can confirm it fix my rpm problem jumping at over 2000 slowing on the stop and idling at 1100 not its at 750 run LIKE A NICE 21 BLONDE 5'7 SATURN OF COURSE
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#13
02-16-2005, 11:32 PM
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Re: Re: Re: spark plug
Quote:
 you just made my day
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#14
02-17-2005, 06:30 PM
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Re: Re: spark plug
Quote:
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#15
03-06-2005, 05:03 PM
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Re: spark plug
It's been a few weeks so I pulled the #1 plug and the threads were coated in fresh oil. The tip is beginning to foul. I have a suspicion that the oil control ring is bad and the compression is forcing oil into the threads causing the spark plug socket to eventually (months) fill up with oil from the bottom.
What do ya'll think of this theory? I will get a compression tester and post again when I have a better idea of what's going on.
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