plug problemo!
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Joined: Jan 2005
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From: NC
plug problemo!
about 2 years ago, i changed the plugs out in my 2001 4.6. I put in MC's like everybody recommends and all was well for about a year. While driving, the motor downshifts at maybe about half throttle and a plug pops out! At the time, this was amazing to me but then i read up on it and found out how common it is with these 3 threaded, aluminum POS heads ford designed from the depths of hell. Luckily the head was not damaged. I'm assuming i didnt put enough torque on the bastard because i was warned about these heads prior to the plug change and it was the passenger bank rear plug (the one practically under the firewall). 1 coil, 1 plug, and 3 busted knuckles later, all is well once again. Fast forward another year and POP! same freakin plug! WTF? This time the head got chewed up on the spark plugs initial launch into orbit. Anybody know a great way to solve this without the dealerships? My plan is to JB weld that summabisch in there and trade this puppy in and let the dealership take the hit a few miles from now. Any ideas or suggestions?
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Joined: Feb 2004
Posts: 10,390
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Hi.
While your solution will certainly work, try a search for Timecert first.
BTW - the problem isn't too little torque, rather it's because of too much. Factory robots tended to tighten them too much, causing deformation of the threads. When rei-installing, use a little antisieze, hand-tighten till seated, then add another 1/8 - 1/4 turn, no more.
Good luck - you can fix this yourself if you really want to.
bubba
While your solution will certainly work, try a search for Timecert first.
BTW - the problem isn't too little torque, rather it's because of too much. Factory robots tended to tighten them too much, causing deformation of the threads. When rei-installing, use a little antisieze, hand-tighten till seated, then add another 1/8 - 1/4 turn, no more.
Good luck - you can fix this yourself if you really want to.
bubba
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Joined: Dec 2006
Posts: 83
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From: Minnesota
Originally Posted by MGDfan
Hi.
While your solution will certainly work, try a search for Timecert first.
BTW - the problem isn't too little torque, rather it's because of too much. Factory robots tended to tighten them too much, causing deformation of the threads. When rei-installing, use a little antisieze, hand-tighten till seated, then add another 1/8 - 1/4 turn, no more.
Good luck - you can fix this yourself if you really want to.
bubba
While your solution will certainly work, try a search for Timecert first.
BTW - the problem isn't too little torque, rather it's because of too much. Factory robots tended to tighten them too much, causing deformation of the threads. When rei-installing, use a little antisieze, hand-tighten till seated, then add another 1/8 - 1/4 turn, no more.
Good luck - you can fix this yourself if you really want to.
bubba
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Member
Joined: Jan 2005
Posts: 14
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From: NC
.
that is the way i installed them the first time. i did a lot of research on techniques and methods prior to installation because of the 3 threaded head issue. i even used only a 1/4" drive ratchet. none of the others have posed any problems. my question now is this, if i decide to have my local performance shop install new heads, is there any benefit to swap on some better ones if they are available that maybe have more threads to them or simply add a little power? cost is a factor here so if they are more expensive than factory then i guess i'll have to settle for rolling the dice again.
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Joined: Feb 2004
Posts: 10,390
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Originally Posted by blk150sport
that is the way i installed them the first time. i did a lot of research on techniques and methods prior to installation because of the 3 threaded head issue. i even used only a 1/4" drive ratchet. none of the others have posed any problems. my question now is this, if i decide to have my local performance shop install new heads, is there any benefit to swap on some better ones if they are available that maybe have more threads to them or simply add a little power? cost is a factor here so if they are more expensive than factory then i guess i'll have to settle for rolling the dice again.
