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Re: still... Spark Plugs? ALL 85

posted by  someone claiming to be Michael Carmel on  Wed Mar 14 14:41 CST 2001 [RELATED]

Any experiences with Volvo/Bosch plugs coming apart? The German-made oem Volvo branded plug in my #3 cylinder on '85 740 GLE with only 61000 miles (yes) came apart leaving only the threaded tube and welded-on electrode stuck in the head. I found the intact porcelain core below on a heat shield, the hex nut and swaged-on ring were separated in my 13/16ths socket. Burns inside showed this plug was coming apart into its original components. The car had been tuned about 35,000 ago and was starting to run just a little ragged. After 3 hrs, I successful removed it with a #5, good quality extractor, I replaced the Volvo plugs with NGK. I am 59, have changed a lot of plugs, and have never seen this.





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New Spark Plugs
posted by  someone claiming to be steve  on Mon Mar 12 15:13 CST 2001 >
  • New Re: Spark Plugs
    posted by  someone claiming to be Dave the Volvo Tech  on Wed Mar 14 16:32 CST 2001 >


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