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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Trouble with COP hold down bolt

  • Thread starter Thread starter 89lxsport50
  • Start date Start date Dec 6, 2010
8

89lxsport50

10 Year Member
Feb 25, 2003
550
5
39
Franklin Tennessee
Dec 6, 2010
#1
  • Dec 6, 2010
  • #1
I changed my plugs about a month ago, and everything went well. This weekend I pulled the COPS and checked the torque on the plugs. They were all still tight. Everything went well until I got to the passenger side rear COP. I cant get the hold down bolt out. It just spins, and the insert in the intake appears to spin with it. Has anyone encountered this? Any suggestions?
 

nyuk98gt

15 Year Member
Oct 10, 2000
1,427
6
79
Chesterfield, MO
Dec 6, 2010
#2
  • Dec 6, 2010
  • #2
89lxsport50:

I don't have COP's but I will tell you what I would try to do. Call or visit your local Ford dealer and ask if they have a kit to fix the insert. I suspect that this is not an uncommon problem (lots of threads on various boards).

If you want to fix it yourself, I would try a Dremel to grind or cut off the head of the bolt. That will let you get the COP pulled. Then, attack the remainder of the bolt with Vice-Grips to pull the insert up (with Vice-Grips) into the plastic of the intake. Once the insert is snug, put a drop of PB Blaster penetrating oil on the threads and try to remove the stub by turning it with Vice-Grips (smallest size). If the insert stays in the intake then you can use a toothpick to apply epoxy glue into the bottom of the hole, then push/tap the insert down, and apply a tiny bead of epoxy around the top of the insert. Let it cure for 24 hours. Use a tap to clean the threads of any epoxy that has strayed in there.

If the insert turns again, you are better off just pulling the whole insert out. Once it is out, you can remove the bolt stub by any means you wish (more PB Blaster, put the stub in a vice, and unscrew the insert using pliers or Channel-Locks and a gentle squeeze. Once the insert is free, test fit a new bolt. Butter the insert with epoxy and push it into the hole. Let the epoxy cure for 24 hours. Chase the threads with a tap.

That's all I got, lol. Hopefully, somebody who has fixed this (properly) will reply. My method is just to give you something to think about.

Chris

***edit:

See Post #5 in here:
http://www.stangnet.com/mustang-forums/708709-spark-plug-change-little-problem.html

***end of edit
 
8

89lxsport50

10 Year Member
Feb 25, 2003
550
5
39
Franklin Tennessee
Dec 7, 2010
#3
  • Dec 7, 2010
  • #3
nyuk98gt said:
89lxsport50:

I don't have COP's but I will tell you what I would try to do. Call or visit your local Ford dealer and ask if they have a kit to fix the insert. I suspect that this is not an uncommon problem (lots of threads on various boards).

If you want to fix it yourself, I would try a Dremel to grind or cut off the head of the bolt. That will let you get the COP pulled. Then, attack the remainder of the bolt with Vice-Grips to pull the insert up (with Vice-Grips) into the plastic of the intake. Once the insert is snug, put a drop of PB Blaster penetrating oil on the threads and try to remove the stub by turning it with Vice-Grips (smallest size). If the insert stays in the intake then you can use a toothpick to apply epoxy glue into the bottom of the hole, then push/tap the insert down, and apply a tiny bead of epoxy around the top of the insert. Let it cure for 24 hours. Use a tap to clean the threads of any epoxy that has strayed in there.

If the insert turns again, you are better off just pulling the whole insert out. Once it is out, you can remove the bolt stub by any means you wish (more PB Blaster, put the stub in a vice, and unscrew the insert using pliers or Channel-Locks and a gentle squeeze. Once the insert is free, test fit a new bolt. Butter the insert with epoxy and push it into the hole. Let the epoxy cure for 24 hours. Chase the threads with a tap.

That's all I got, lol. Hopefully, somebody who has fixed this (properly) will reply. My method is just to give you something to think about.

Chris

***edit:

See Post #5 in here:
http://www.stangnet.com/mustang-forums/708709-spark-plug-change-little-problem.html

***end of edit
Click to expand...

Thanks man, that's pretty much what I was thinking.
 

Brute03

Member
Mar 20, 2006
232
0
16
Dec 7, 2010
#4
  • Dec 7, 2010
  • #4
same thing happend to me, i just cut the head of the bolt off and left the rest of it in the intake. i haven't had any problems with it since
 
8

89lxsport50

10 Year Member
Feb 25, 2003
550
5
39
Franklin Tennessee
Dec 7, 2010
#5
  • Dec 7, 2010
  • #5
I am assuming that since the insert is spinning with the bolt, it should pull out of the intake without too much trouble once I cut the bolt head off and remove the COP. I'm hoping that's the case anyway. That way I could put it in my vise and remove the rest of the bolt like nyuk98gt said. Then I could epoxy the insert back in, and get a new bolt for it.
 
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