Yeah, Im still not sure why it wouldn't go in like it should have.

 

Oh well. Im going to try shorter bolts with washers for the rear COPs.

 

Thanks for posting those pics, mine is making a subtle whine when I hit the throtle. Last time I looked back there I wasnt sure where exactly it was, now I do, thanks a bunch.

 

Does anyone use anything on the threads for the COP bolts? anti-seize or oil ??

thanks.

 

Awesome Thread!!!!

 

I wouldn't say it's necessary for those...never heard of them getting rusted or anything like that.

 

I had removed one of my COP's to learning what these things are all about. The bolts made squeaking noises when coming out and going in. I was thinking that it would make sense to put something on the threads to make them go in easier. Should the bolts be replaced when changing plugs? I am worried about breaking one of these thin bolts.

Thx

 

I re-gapped my plugs last week and I used never seize on the COP bolts. I cleaned the bolt threads with a wire wheel and then coated them with never seize. I was able to hand tighten them and then just use a 7mm socket to tighten them up. I off road my truck and the ends were dirty. Silly me I did the passenger side one at a time. Then when my brain started working I removed all 4 of the driver side at one time and cleaned them all at the same time. FYI I would not leave a COP coil loose. Get a tap and chase the threads or find a self tapping bolt.

Regards

Jean Marc Chartier

 

Well, it wouldn't hurt to put some anti-sieze on those as well
Like JMC said I wouldnt replace the bolts, just clean them up with a wire brush or something.

 

I could not find self-tapping bolts since our hardware stores were closed. I went to Lowes to get the 8mm hex head bolts. I ended up using the 16mm length and they grabbed enough to grip good and keep the COP coils tight. I did not use any washers with the bolts cause I did not wan't to chance it falling down into the spark plug hole. I thought about JB weld with the washer and bolt but did not pursue it.

 

I sprayed all the bolts with PBBlaster and got them all to turn so I feel good about the bolts. The one EGR bolt acted like it was welded in there but it finally turned. I did not remove the DPFE bracket so I don't know how that bolt will turn yet. The two throttle cables do not have bolts on my 1999 F150 5.4L engine. The throttle cables are disconnected quickly by hand. I think I can remove the throttle body in 5 or 10 minutes easily.

Its kind of cold today here in Kansas so I decided to wait till it warms up again before I remove it. Thanks for the instructions!