What broke my plug electrode??
Thread Starter
Launching!
Joined: Dec 2001
Posts: 263
Likes: 0
From: Jacksonville, FL
What broke my plug electrode?? http://www.jaxracing.com/lswon/fuddupplug.jpg
Well, #1, #2, and #8 cylinders are showing 20%, 24%, and 20% leakdown respectively. The rest are between 2% and 4%. It should be anywhere less than 5%. The intake is off and the heads are on their way to being off. Guess its time to see whats been making that tapping noise. Oh boy, I really wasn't looking forward to this.
The electrode isnt melted, its actually broken off. If you look at it closely as we did, you can see the jagged edge where it broke. Its doesnt appear to be melted, but I bet the piston rings are. I figure my front 2 cyls are the leanest but damn, not that lean. I still dont know about #8. It may just be wacked out for other reasons.
I was only running a 100 shot dry with my current setup. I just dont know why it would do somthing like this. Oh well. We'll see the rest of the damage tomorrow night.
Dan
Well, #1, #2, and #8 cylinders are showing 20%, 24%, and 20% leakdown respectively. The rest are between 2% and 4%. It should be anywhere less than 5%. The intake is off and the heads are on their way to being off. Guess its time to see whats been making that tapping noise. Oh boy, I really wasn't looking forward to this.
The electrode isnt melted, its actually broken off. If you look at it closely as we did, you can see the jagged edge where it broke. Its doesnt appear to be melted, but I bet the piston rings are. I figure my front 2 cyls are the leanest but damn, not that lean. I still dont know about #8. It may just be wacked out for other reasons.
I was only running a 100 shot dry with my current setup. I just dont know why it would do somthing like this. Oh well. We'll see the rest of the damage tomorrow night.
Dan
Thread Starter
Launching!
Joined: Dec 2001
Posts: 263
Likes: 0
From: Jacksonville, FL
Re: What broke my plug electrode?? Well, i got that head off last night and didnt find any stray pieces of metal. The cylinder wall looks good but the chamber is really dark and I figure the rings are going south. I havent got the passenger head off cause the header is still in the way. I'll report back more later.
TECH Regular
Joined: Nov 2001
Posts: 472
Likes: 0
From: Barberton, OH
Re: What broke my plug electrode?? I just pulled out a plug that looked axactly like that, electrode melted off(N20), but the ceramic was broken and half gone <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
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