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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Stuck Spark Plugs

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Old Aug 22, 2016 | 02:48 PM
  #16  
Brian1971f100's Avatar
Brian1971f100
Posting Guru
Joined: Mar 2016
Posts: 1,412
Likes: 1
From: Barre Mass
After looking at the plug I think maybe you had the wrong sized socket. I'm sure these old engines didn't use metric sizes. Metric and US sizes can be close but never the same. Hope you have better luck on the remaining 5
 
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Old Aug 22, 2016 | 02:54 PM
  #17  
CougarJohn's Avatar
CougarJohn
Fleet Mechanic
20 Year Member
Joined: May 2001
Posts: 1,396
Likes: 4
From: Cupertino
That is good news. You need a deep 13/16 socket. With that and the breaker bar, the plugs will break.

Semper Fi
 
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Old Aug 22, 2016 | 08:46 PM
  #18  
RORZA's Avatar
RORZA
Freshman User
Joined: May 2016
Posts: 39
Likes: 0
Look up "hotrodreference.com" General information side bar has the solution to stud/bolt removal. May be of some use to somebody. Blind in one eye DEAF in one ear. Trying to give help. Not too worried about politically correctness. Not trying to insult fellow members on this excellent site.
 
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Old Aug 22, 2016 | 08:50 PM
  #19  
KsHighboy's Avatar
KsHighboy
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Joined: Apr 2006
Posts: 323
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ATF mixed with acetone is a good penetrant! Might try it. Soak em and let me set a few days.
 
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Old Aug 22, 2016 | 11:18 PM
  #20  
351Cleveland C4's Avatar
351Cleveland C4
Lead Driver
Joined: Jul 2011
Posts: 8,679
Likes: 191
From: On the Edge of the Desert
If you're having trouble gripping it, get a cheap 12point 19mm socket and smash it on with a hammer. Extract plug and either scrap the whole works or drive the plug out and keep the socket.

Another idea, bust all the porcelain off and weld a larger nut on top of the plug base. The heat will help and the electric current may help bust up the rust on the atomic level.
 
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