Plug condition

Master Joined : 2007-01-16 Post Count : 8072 Merit : 105

An autolite 104 after a few thousand unmodded miles. You guys see any problems?

Subject: Re: Plug condition Sat Apr 12, 2008 5:26 pm

nope, not at that angle. how does the electrode look?
what is your gap set at?

_________________
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
Plug condition Dsc_0110

Subject: Re: Plug condition Sat Apr 12, 2008 6:50 pm

Need more pics, It looks like some dark flecks on the center electrode.
If so, that would be an indication of detonation.

Bert tavis

Subject: Re: Plug condition Sat Apr 12, 2008 11:56 pm

It almost looks like it bent upwards.

Master Joined : 2007-01-16 Post Count : 8072 Merit : 105

I don't remember what the gap is set at. We discussed it on regalgs.org and I believe I went with Aaron's recommendation, whatever it was.

I've never heard any knocking. It runs smooth.

Subject: Re: Plug condition Sun Apr 13, 2008 1:00 am

Looks fine. Perfect plug. Measure the gap and adjust if necessary. Replace, or leave it in for another 10-15k miles.

_________________
'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

Master Joined : 2007-01-16 Post Count : 8072 Merit : 105

Would the gap change with use? If not, then it's fine, and we know 104's can be run in stock Riv's with no problem.

Subject: Re: Plug condition Sun Apr 13, 2008 5:09 pm

they will change slightly. (gap gets larger as the electrode burns away) but with only a couple thousand miles they probably haven't even changed.

_________________
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
Plug condition Dsc_0110

Subject: Re: Plug condition Sun Apr 13, 2008 7:29 pm

looks ok> thats the color a properly functioning plug should be,not too hot,wht, lean condition. not black,running rich. ashen color is good.

Master Joined : 2007-01-16 Post Count : 8072 Merit : 105

All-rightey then!

FWIW I posted this because Aaron asked a looong time ago. He probably doesn't even remember. But I remembered when I was putting on the free plug wire shields he sent me! So here it is!

Subject: Re: Plug condition Mon Apr 14, 2008 10:08 am

It is good to see an AL104 from a stock engine with no evidence of fouling. Thanks for the update. From this we can conclude it's okay to skip the 605s, especially if you are a spirited driver.

_________________
'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

Master Joined : 2007-01-16 Post Count : 8072 Merit : 105

Well I'm not driving with much spirit due to gas prices, that's for sure.

Subject: Re: Plug condition Tue Apr 15, 2008 10:12 am

Report back in 15k miles, Jack. wink

_________________
'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

Master Joined : 2007-01-16 Post Count : 8072 Merit : 105

At the rate I'm putting miles on another 15k will come after the Maya-predicted end of the world in 2012.

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