OEM NGK Spark Plug Electrode Ground Broke Off
#1
OEM NGK Spark Plug Electrode Ground Broke Off
I'm sure this topic has probably been covered in the past.
The cars has 10,266 miles. I tried getting into boost last night and the car started sputtering and would not boost. At idle, it would missifire. I had a suspicion that somethng might be wrong with the spark plugs and started taking the coils and plugs out. Sure enough, pulled plug #3 and found this:
![](http://i200.photobucket.com/albums/aa6/Emilian_D_Costan/DSCF4350_zps5f7b0d3a.jpg)
![](http://i200.photobucket.com/albums/aa6/Emilian_D_Costan/DSCF4353_zps20796669.jpg)
The cars has 10,266 miles. I tried getting into boost last night and the car started sputtering and would not boost. At idle, it would missifire. I had a suspicion that somethng might be wrong with the spark plugs and started taking the coils and plugs out. Sure enough, pulled plug #3 and found this:
![](http://i200.photobucket.com/albums/aa6/Emilian_D_Costan/DSCF4350_zps5f7b0d3a.jpg)
![](http://i200.photobucket.com/albums/aa6/Emilian_D_Costan/DSCF4353_zps20796669.jpg)
![](http://i200.photobucket.com/albums/aa6/Emilian_D_Costan/DSCF4352_zps8df22c6e.jpg)
#4
I did not ![Crap](https://www.evolutionm.net/forums/images/smilies/crap.gif)
I'm hoping that it went out the exhaust valve without damaging anything.
I will be doing a compression test and will also be going to a shop to get a videoscope in the block to make sure the piston, walls, and valves are not damaged.
From my research, the 08-10 Evo X's use a different plug than the 11+.
NGK ILKR8E6 (2008-10 models)
NGK DILKR8B6 (2011+ models)
I ordered a set of ILKR8E6 from O'Reilly. You can get them cheaper online, but I needed them the same day so I had to pay $80 + tax for all four plugs.
![Crap](https://www.evolutionm.net/forums/images/smilies/crap.gif)
I'm hoping that it went out the exhaust valve without damaging anything.
I will be doing a compression test and will also be going to a shop to get a videoscope in the block to make sure the piston, walls, and valves are not damaged.
NGK ILKR8E6 (2008-10 models)
NGK DILKR8B6 (2011+ models)
I ordered a set of ILKR8E6 from O'Reilly. You can get them cheaper online, but I needed them the same day so I had to pay $80 + tax for all four plugs.
Last edited by MadBoostedEvo; Jun 10, 2013 at 01:57 PM.
#7
Newbie
It happened to my friends evo x running a cosworth engine 2 weeks ago, damaged the head and valve. He mentioned that previously he was running HKS plugs with no issues apart from cost.
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#8
Evolving Member
Im curious if the HKS plugs are better from OEM. Everyone seems to just keep using the OEM ones regardless if they keep having failures.
#10
#12
Newbie
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