General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.
Sponsored by:
Sponsored by:

Zilla's initial autopsy:

Thread Tools
 
Search this Thread
 
Old 09-01-2007, 10:54 AM
  #1  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
willwren's Avatar
 
Join Date: Aug 2002
Posts: 11
Likes: 0
Received 4 Likes on 4 Posts
willwren is on a distinguished road
Default Zilla'* initial autopsy:

Found one plug (#1) physically damaged and squashed flat with impact marks.

Looks a bit worse than expected. I may tear into this later, but right now I'm on my way to FIE to lend a hand with 3 sets of fuel injectors for the club.

Let'* hope the piston survived and it'* only a dropped valve........
Old 09-01-2007, 10:58 AM
  #2  
Senior Member
True Car Nut
 
SSEimatt93's Avatar
 
Join Date: May 2003
Location: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Posts: 8,135
Likes: 0
Received 0 Likes on 0 Posts
SSEimatt93 is on a distinguished road
Default

Oh no!
Wow..i wonder if it was the fuel then? Or a failed keeper/retainer
Old 09-01-2007, 11:48 AM
  #3  
Senior Member
True Car Nut
 
Echo SSEI's Avatar
 
Join Date: May 2005
Location: _Phoenix, AZ_ _WCBF '05, '06, '07 Survivor_ ____NEBF '07 Remnant___
Posts: 3,448
Likes: 0
Received 6 Likes on 6 Posts
Echo SSEI is on a distinguished road
Default

:(

Bummer, Chief

At least you can drive the green SCed Bonne while the green SCed Bonne gets taken care of.
Old 09-01-2007, 12:16 PM
  #4  
Senior Member
Certified GM nut
 
GXP_Vince's Avatar
 
Join Date: Mar 2007
Location: Yuma, AZ.
Posts: 1,937
Likes: 0
Received 0 Likes on 0 Posts
GXP_Vince is on a distinguished road
Default

Originally Posted by Echo SSEI
:(

Bummer, Chief

At least you can drive the green SCed Bonne while the green SCed Bonne gets taken care of.
Lol thats funny.
Old 09-01-2007, 12:53 PM
  #5  
Senior Member
Certified Car Nut
 
J Wikoff's Avatar
 
Join Date: Mar 2003
Posts: 12,433
Likes: 0
Received 2 Likes on 2 Posts
J Wikoff is on a distinguished road
Default

You couldn't here it?
Old 09-01-2007, 02:17 PM
  #6  
Senior Member
Posts like a Camaro
 
theJMFC's Avatar
 
Join Date: Jan 2003
Location: Jenison, MI (Near Grand Rapids)
Posts: 1,070
Likes: 0
Received 0 Likes on 0 Posts
theJMFC is on a distinguished road
Default

Crap, that'* not cool.

I'd be all over that gas station, if there'* any chance they were to blame. Worst case, you'd probably get a free gas card or something to get you to shut up/leave the place.
Old 09-01-2007, 06:18 PM
  #7  
Senior Member
True Car Nut
 
big_news_1's Avatar
 
Join Date: Jun 2004
Location: Glendale, AZ
Posts: 3,459
Likes: 0
Received 1 Like on 1 Post
big_news_1 is on a distinguished road
Default

I wonder if there'* any chance severe detonation could have misshapen the plug... Here'* hoping it'* not a damaged piston.
Old 09-01-2007, 06:25 PM
  #8  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
willwren's Avatar
 
Join Date: Aug 2002
Posts: 11
Likes: 0
Received 4 Likes on 4 Posts
willwren is on a distinguished road
Default

This isn't octane related as I first suspected.

This is a physical impact of some sort. I need to check compression next. Probably not until tomorrow. I'm thinking broken valve. Drove 5-10 miles on it after I noticed the miss. I WAS on 4 cylinders, as with the waste-spark method, the other plug on this coil wouldn't have fired with a dead short on this one.

It MAY only be a piece of a valve. Just no way to know. I'll do compression first, then maybe take an initial look in there with a borescope through the plug boss.


Name:  DSC04773.jpg
Views: 147
Size:  37.3 KB

Name:  DSC04775.jpg
Views: 137
Size:  37.3 KB

Name:  DSC04777.jpg
Views: 132
Size:  30.7 KB
Old 09-01-2007, 06:43 PM
  #9  
Senior Member
Certified Car Nut
 
J Wikoff's Avatar
 
Join Date: Mar 2003
Posts: 12,433
Likes: 0
Received 2 Likes on 2 Posts
J Wikoff is on a distinguished road
Default

It'* not obliterated, so that'* a good sign.
Old 09-01-2007, 08:28 PM
  #10  
Senior Member
Posts like a Turbo
 
LeSabreUltra's Avatar
 
Join Date: Feb 2007
Location: Alabama
Posts: 494
Likes: 0
Received 0 Likes on 0 Posts
LeSabreUltra is on a distinguished road
Default

Ouch...

I hope that works out for the best. :?
.
.
.


Quick Reply: Zilla's initial autopsy:



All times are GMT -4. The time now is 07:09 AM.