Spark Plugs - What does this mean?
#1
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Hi all just swapped out my spark plugs approx 15-20k miles on them NGK TR55s.
I placed them as if you were standing in front of the engine, take a look at cylinder 4 and 7, they look pretty toasty and lots of junk on them...
What does this mean on those cylinders?
![](http://farm4.static.flickr.com/3534/3835489976_541a011d70_b.jpg)
Close up of 4
![](http://farm4.static.flickr.com/3441/3835490008_fced61633f_b.jpg)
Close up of 7
![](http://farm4.static.flickr.com/3442/3835490000_02e6ff591c_b.jpg)
Think my **** is fixing to break? or is there anything I can do to fix the issues?
Any help appreciated.
THanks!
I placed them as if you were standing in front of the engine, take a look at cylinder 4 and 7, they look pretty toasty and lots of junk on them...
What does this mean on those cylinders?
![](http://farm4.static.flickr.com/3534/3835489976_541a011d70_b.jpg)
Close up of 4
![](http://farm4.static.flickr.com/3441/3835490008_fced61633f_b.jpg)
Close up of 7
![](http://farm4.static.flickr.com/3442/3835490000_02e6ff591c_b.jpg)
Think my **** is fixing to break? or is there anything I can do to fix the issues?
Any help appreciated.
THanks!
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#8
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coolant would turn them yellowish/green. they just look cooked, it could have ben detonation ,oil
several things can cause too HOT conditon. i would use ac delco factory plugs, i never had a problem with stock plug
im not saying ngk is bad, i use them for other stuff.
several things can cause too HOT conditon. i would use ac delco factory plugs, i never had a problem with stock plug
im not saying ngk is bad, i use them for other stuff.
Last edited by 2001SS_stompinsupras; 08-19-2009 at 03:09 PM.
#10
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what I got here is camero 2002 ss convertable no problems 86,000 mile time to change the Spark plugs you think. do I go OEM AC DELCO AC41-985 OE 12571164 gap 0.05 or do I go best choice BOSH 8S4505 Premiun class platinemin fusion no gap or then their is performance ACCEL A35p526s . Got good long life from OEMS will I have the same from the BOSH ??
#14
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
what I got here is camero 2002 ss convertable no problems 86,000 mile time to change the Spark plugs you think. do I go OEM AC DELCO AC41-985 OE 12571164 gap 0.05 or do I go best choice BOSH 8S4505 Premiun class platinemin fusion no gap or then their is performance ACCEL A35p526s . Got good long life from OEMS will I have the same from the BOSH ??