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 Spark Plug Gapping??

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TheNewEra95
Ash
L67
lyonsperformance
T Riley
AA
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Mr.Riviera
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyThu Feb 01, 2007 11:33 am

what gap are you guys using with the 104's ?

_________________
1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
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AA
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyThu Feb 01, 2007 4:18 pm

.058"

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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Mr.Riviera
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Mr.Riviera


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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyThu Feb 01, 2007 4:27 pm

mine are at .050 or .055 (i dont remember) but ideal is -as large of a gap as possible while still making good spark, right?

_________________
1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP
AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily
Spark Plug Gapping?? Dsc_0110
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AA
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyThu Feb 01, 2007 6:17 pm

Right. But you have to take into account that the copper will wear away during its life. Mine were between .060"-.065" after 25k miles.

If you change them more frequently, you could gap at .060".

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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T Riley
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Spark Plug Gapping?? Empty
PostSubject: Spark Plug Gapping??   Spark Plug Gapping?? EmptyWed Mar 21, 2007 9:11 pm

hey i realize that you can buy spark plugs PRE GAPPED???? well i have a MISFIRING issue on cylinder 4 and last time to fix it i put in a new plug and Wire and IT fixed it pronto!!! so i was thinking to find some plugs for it..... but i couldnt change cylinder number 6......
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lyonsperformance
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyThu Nov 20, 2008 3:48 pm

What gap are our spark plugs anyway?
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L67
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptySun Dec 07, 2008 1:21 am

lyonsperformance wrote:
What gap are our spark plugs anyway?

Should say under the hood above the radiator, i recall seeing it say .5" last weekend
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Ash
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptySun Dec 07, 2008 10:57 am

L67 wrote:
lyonsperformance wrote:
What gap are our spark plugs anyway?

Should say under the hood above the radiator, i recall seeing it say .5" last weekend

.5 " ??? That means 1/2 an inch. I believe the factory gap is .060 ".
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L67
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptySun Dec 07, 2008 11:53 am

o thats what i meant haha my bad, i know it says above the radiator though
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TheNewEra95
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Spark Plug Gapping?? Empty
PostSubject: Autolite 104's, gapping?   Spark Plug Gapping?? EmptyFri Apr 09, 2010 12:50 pm

Hey guys, I ordered some parts from zzp(including Autolite 104's, 180 drilled thermo, and Farenheit 9006/9005 bulbs) and was wondering if the Autolites need any gapping done? Im not to sure as this is the first time Ive ever bought Autolites, but I want to make sure they run right, and if they need gapping to gap them.

Thanks guys.

-Zach
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AA
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 1:11 pm

Gap the 104s to .058" and you should be good. Always check the gap; you never know if they're right.

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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albertj
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 5:24 pm

AA wrote:
Gap the 104s to .058" and you should be good. Always check the gap; you never know if they're right.

Yeah just a note for "next time" - if you buy plugs from a parts store (not necessarily AutoZone - I am thinking a CarQuest or a NAPA) they will gap the plugs for you if you ask. When mechanics get parts from those guys, the better stores will gap the plugs for the mechanic based on the spec that pops up when they look up the plugs in the reference guide. All you have to do is ask if you want the same.

Albertj
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TheNewEra95
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 5:47 pm

so the gap they come with stock should be ok then?
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 5:50 pm

NO..NO..NO.
They may have been gapped at the factory for any number of different cars and specifications.
And, even if they were gapped for your application, they get bounced around during shipping and handling (ever wonder what that extra fee is for) and the gap will be smaller than necessary.
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TheNewEra95
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 5:51 pm

Good point. so .060 it is, thanks guys
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AA
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 5:54 pm

At .058" you will get a little more life out of the plug.

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown


Last edited by AA on Fri Apr 09, 2010 6:03 pm; edited 1 time in total
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98riv
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 7:27 pm

I just got spark plugs today and non of the spark plug gaps were the same. Some were .55 while others were .65. That is why it is important to check the gaps before you install them.

_________________
1998 Supercharged Riviera - Custom CAI, Alpine spx-13ref, Infinity 6x9's, Alpine 4 Channel Amp, Kicker KX3, Silverstars, STB, Hawk Brake Pads, Monroe Air Shocks, KYB GR2
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TheNewEra95
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 7:29 pm

Yah my autolite 104's just arrived from ZZP, going to install them tomorrow probably
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Spark Plug Gapping?? Empty
PostSubject: Re: Spark Plug Gapping??   Spark Plug Gapping?? EmptyFri Apr 09, 2010 7:53 pm

98riv wrote:
I just got spark plugs today and non of the spark plug gaps were the same. Some were .55 while others were .65. That is why it is important to check the gaps before you install them.

Same with the ones I just did.
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