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Author
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Topic: Stripped Spark Plug
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QwikStang
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Member # 2933
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posted
 
 
While changing spark plugs recently I noticed that one cylinder has a spark plug that I cross threaded last time. I tried backing it out but it started to freeze up and get tighter so I left it. What will I have to do to fix this problem? Do I need new heads? Will this be expensive?
Any advice is appreciated.
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95 GT Vert
1 of 2,584
Where there is no patrol car, there is no speed limit.
http://www.cardomain.com/id/qwikstang
Posts: 573 | From: San Jose, CA | Registered: Jun 2003
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Eddie510-
CAFords OG
Member # 2354
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posted
the plug is still in there? or did you take it out?if so i think kragen or summit have a kit for it, eddie ![[patriot]](graemlins/patriot.gif)
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"I like to be more politicaly correct than what I really believe so I can get more frinds here on CaFords"-Cummings "TIPICKLE"
Posts: 6557 | Registered: Jan 2003
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QwikStang
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Member # 2933
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posted
It's still in there. I tightened it back up and just changed the other 7. I'll check into Kragens. I'm guessing they have a tap and die set for it. My only worry would be that something might break while backing it out (it was really tight).
Thanks.
[ November 20, 2003, 12:35 PM: Message edited by: QwikStang ]
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95 GT Vert
1 of 2,584
Where there is no patrol car, there is no speed limit.
http://www.cardomain.com/id/qwikstang
Posts: 573 | From: San Jose, CA | Registered: Jun 2003
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JohnB
Tech Moderator
Member # 969
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posted
Unless they are aluminum heads, you'll break the spark plug before you hurt the head.
As for re-tapping the hole, unless you are REALLY careful, you may end up pulling the head off (if you indeed need to tap the hole).
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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shadow50
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Member # 2265
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posted
I agree, If you've got aluminum heads you'll have stripped the threads on the head. Cast iron heads will probably strip the plug. Careful on bits of metal getting in the cylinder. If you must, Helicoil kits are available to repair the stripped out thread. Not a fun job, but if you have to fix it, it can be done.
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84 5.0 vertible balanced . E303 cam,MSD Dist, BBK Shorties,
BBK cold air intake, Flowmaster Exhaust, 89 Saleen body kit, T-5 swap 92 EFI conversion.
Posts: 44 | From: Pleasant Hill | Registered: Jan 2003
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