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Old 11-04-2018, 04:56 PM   #1
X-QQQ-me
 
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Cylinder 6 out

Hey fellas Iím new here so bare with me. I had cylinder 6 go out and I pulled the plug on it. The ground electrode bent in leaving no gap in the plug. Iím assuming the worst here. So itís with a valve. Part of the piston, detonation, over rev , just seeing if anyone has had a similar issue.

I got a bore scope on the way to work today. When I get home Iím going to cross my fingers and see what I find in there.

What yíall think?

Pic of plug
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Old 11-04-2018, 05:39 PM   #2
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Quote:
Originally Posted by X-QQQ-me View Post
Hey fellas Iím new here so bare with me. I had cylinder 6 go out and I pulled the plug on it. The ground electrode bent in leaving no gap in the plug. Iím assuming the worst here. So itís with a valve. Part of the piston, detonation, over rev , just seeing if anyone has had a similar issue.

I got a bore scope on the way to work today. When I get home Iím going to cross my fingers and see what I find in there.

What yíall think?

Pic of plug

More people may be able to help if you provide more details about you car. Mods, miles, when did you notice the issue. At 1st glance it appears that the electrode had the crap beat out of it and possibly melted i.e. lean run. Can you post a closer pic of the electrode?
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Old 11-04-2018, 08:44 PM   #3
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2012 zl1 m6
39000 miles

Lingenfelter 2.55 upper
Ati 8.66 crank pully
Ati harmonic balancer
Ported super charger
Ported 93mm TB
17/8 LT headers
Cora’s exhaust
Bosch 1000cc injectors
Cai
Tuned on 91 octane

I noticed the days before it idled a bit rough then was fine. I smelt a bit of fuel that was more then usual as well. Then the day it happened it fired right up I let it warm up for a few min then was going to head to work. As I pulled on the high way it shuttered bad and lost power so I turned around and went home to get my truck.
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Old 11-04-2018, 09:16 PM   #4
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could someone point me in the direction of a shop that is reputable with these cars. I was looking at RPM in North Carolina but that is a long way for me nearly 22hrs from Sioux Falls SD.

Thanks for any and all Info guys.
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Old 11-05-2018, 07:24 AM   #5
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Could try Schwanke Engines in MN. I've at least heard of those guys.
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Old 11-05-2018, 09:37 AM   #6
Happy_Dan
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Be interested to see what the bore scope shows. Did you test compression or at least turn the engine by hand with the plug out to see if you can see anything?
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Old 11-06-2018, 04:11 PM   #7
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Mine did the same thing, turned out to be the tune and caused a detonation, both 6 and 8 cylinders had the spark plugs smashed and took chunks out of the piston edges, cause a scar on the #6 cylinder wall as well. Machine shop will be the best bet to know the real damage.
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Old 11-06-2018, 04:40 PM   #8
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How did you determine it was a tune issue? That’s what I am thinking as of now in my ordeal.. what did you end up doing to fix it all?
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Old 11-06-2018, 04:42 PM   #9
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Happy_Dan I seen some scuffs on the piston face but could quite tell if anything was loose in there.
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Old 11-07-2018, 02:59 PM   #10
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why not excessive autosports in Sioux fall
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Old 11-07-2018, 04:29 PM   #11
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I talked to them the other day! I’m new to this area and wasn’t to sure where to start looking. I met with Joey there and he seemed pretty cool and knowledgeable. I’m taking the car there on the 26th. I’m planning for the worst and hoping for the best. Lol

How do you know of Excessive gsxrturbo ?
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