Spark Plug Poping Out

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  #1  
Old 12-18-03, 07:19 AM
jabari
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Spark Plug Poping Out

I have a 98 Chevy Calvalier 4 Cylinder. The number 3 spark plug keeps blowing off. This happens every other day. At first I thought that it just needed tighting up. So I tighten it down to the manufactors specs. The threads on the cylinder head looks clean so I don't think that they are strippeed. I did a tune up on the car about 6 months ago. Has anyone every had this problem? If so what is causing it to happing.
 
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  #2  
Old 12-18-03, 07:55 AM
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Join Date: Sep 2003
Location: somewhere down in texas
Posts: 506
something has to be stripped. either the spark plug, or the head. if it is the head, you can use a heli-core to repair. it may not be perminant, but it works for us on our small engines.
 
  #3  
Old 12-18-03, 07:57 AM
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Join Date: Sep 2003
Location: somewhere down in texas
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maybe it is called heli-coil, i can never remember. here in texas, if we cant pronounce it we just mumble it and the parts guy will figure it out.
 
  #4  
Old 12-18-03, 04:03 PM
darrell McCoy
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I agree, either bad head threads or plug threads.
 
  #5  
Old 12-20-03, 07:12 AM
jimmymc
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If you under torque or leave a sparkplug loose...the resulting movement of the sparkplug will wear out the threads over a period of time. A heli-coil installed correctly should solve your problem.

jimmymc
 
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