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Old 12-12-2013, 01:27 PM   #1
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Spark plug bolts

Hey Folks,

i tried to change my spark plugs today and i am stuck in these bolts that hold the boot in place. I can´t get a grip on them :banghead

i was hoping that maybe you guys have an idea to loosen the bolt up.
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Old 12-12-2013, 01:41 PM   #2
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It should be a 10mm or an 8mm I forget which one but you should have no problem getting the socket on there and getting it out

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Old 12-12-2013, 05:51 PM   #3
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Should be 8mm

Can't upload picture but, if your rounded them off you kinda screwed yourself.

They go into plastic so DO NOT tighten them tight, you will strip the plastic.
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Old 12-13-2013, 01:54 PM   #4
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They screw into a brass bushing pressed into the plastic manifold. They msy be seized into the brass bushing from corrodion, or if overtightened in the past the bushingsmay be spinning in their bores.

Try placing a lever beteeen the COP body and the mounting boss and applying a bit of upward forve while attempting to remove the mounting screw. If you get lucky the COP, screw and bushing will come out all together. You can then grab the bushing with curved jaw vice-grips and usually remove the screw.

Use JB-Weld to secure the bushing back into the manifold. I have repaired dozens of these in this manner...
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