[Pic] Can someone read my sparkplug please :)
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 3,474
Likes: 1
From: 1
[Pic] Can someone read my sparkplug please :)
Plugs & wires are 2.5 years old. I've had some low RPM stumbling and sluggishness around 2000RPM. WOT pulls very hard, although I did experience a high-RPM miss the other day. I'm thinking of doing new plugs and wires to start with, but I'm not sure if I need them yet. I just pulled this one out of the middle pass side. There seems to be a gray powder coating the electrode (anyone know what that's from??
)
Can anyone let me know if I it's time for new plugs and wires? Thanks in advance
)Can anyone let me know if I it's time for new plugs and wires? Thanks in advance
Last edited by Darkgh0st; Apr 26, 2007 at 10:14 PM.
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 3,474
Likes: 1
From: 1
Racer
Joined: Feb 2006
Posts: 269
Likes: 0
From: Vancouver B.C.
Plugs look perfect.
Burning is clean and complete and plugs look 'new' (sharp edges).
If high rpm miss, I'd first replace all wires.
(but then, I had wire problems a few times years ago ~new factory gm~that arched.....so I've always replaced my wires FIRST without question.....even before plugs/cap/rotors)
Burning is clean and complete and plugs look 'new' (sharp edges).
If high rpm miss, I'd first replace all wires.
(but then, I had wire problems a few times years ago ~new factory gm~that arched.....so I've always replaced my wires FIRST without question.....even before plugs/cap/rotors)
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 3,474
Likes: 1
From: 1
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 3,474
Likes: 1
From: 1
Plugs look perfect.
Burning is clean and complete and plugs look 'new' (sharp edges).
If high rpm miss, I'd first replace all wires.
(but then, I had wire problems a few times years ago ~new factory gm~that arched.....so I've always replaced my wires FIRST without question.....even before plugs/cap/rotors)
Burning is clean and complete and plugs look 'new' (sharp edges).
If high rpm miss, I'd first replace all wires.
(but then, I had wire problems a few times years ago ~new factory gm~that arched.....so I've always replaced my wires FIRST without question.....even before plugs/cap/rotors)
Racer
Joined: Feb 2006
Posts: 269
Likes: 0
From: Vancouver B.C.
Let me correct what I stated......
Poor wires will fail upon high voltage demand. Not specifically under WOT, rather whenever the demand is there. That includes low rpm as well. In other words, whenever the coil is under demand to produce spark.
Poor wires will fail upon high voltage demand. Not specifically under WOT, rather whenever the demand is there. That includes low rpm as well. In other words, whenever the coil is under demand to produce spark.
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Le Mans Master
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St. Jude Donor '03 thru '26
Great camera work 
Those plugs look just like a good running nitrous motor with the flash washout
I agree they look pretty good...........if anything, maybe a little carbon from a lot of idling as evidenced around the perimeter, but the spark is burning that off the electrode just fine
Those plugs look just like a good running nitrous motor with the flash washout
I agree they look pretty good...........if anything, maybe a little carbon from a lot of idling as evidenced around the perimeter, but the spark is burning that off the electrode just fine
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 3,474
Likes: 1
From: 1
Great camera work
Those plugs look just like a good running nitrous motor with the flash washout
I agree they look pretty good...........if anything, maybe a little carbon from a lot of idling as evidenced around the perimeter, but the spark is burning that off the electrode just fine
Those plugs look just like a good running nitrous motor with the flash washout
I agree they look pretty good...........if anything, maybe a little carbon from a lot of idling as evidenced around the perimeter, but the spark is burning that off the electrode just fine
