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Striped Spark Plug


jabari's Avatar
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03-15-04, 07:35 AM   #1  
jabari
Striped Spark Plug

What is the best way to remove a striped spark plug out of the cylinder head of a 1995 2.2 L S-10? I already know Ez out. Can this be used with the head on are does it have to be off?

 
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03-15-04, 10:05 AM   #2  
How is it stripped? Is it that it will not turn, the hex is stripped? The plug is out but the threads are messed up?

 
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03-15-04, 10:55 AM   #3  
jabari
It will not turn counterclockwise. The procleain and the hex nut are fine. It seems that when the plug was reinstalled it was cross threaded. It is not causing a miss or backfiring, the spark plug itself is in good shape.

 
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03-15-04, 11:24 AM   #4  
Spray with a good rust penetrant and try it after it sits cold for 8hrs or more.

 
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03-15-04, 04:40 PM   #5  
It's not exactly legal but you could spray some freon directly on the plug and nothing else and that will shrink it slightly. If it's an aluminum head then it's just seized and will take part of the head with it when it comes out.

 
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03-16-04, 06:59 AM   #6  
jabari
When I remove it will I have to replace the Head or just rethread it or is it a 50/50 chance.

 
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03-16-04, 07:16 AM   #7  
Maybe able to rethread or they do have kits that install a sleeve with threads in it.

They can be done on the car.

 
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03-16-04, 04:56 PM   #8  
Originally posted by toyotaman11769
Maybe able to rethread or they do have kits that install a sleeve with threads in it.

They can be done on the car.
It's called a Heli-coil and it was God's gift to mechanics. They are lifesavers. Make sure you install it straight though.

 
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