jsenclosure

So i went to replace my knock sensor the other night (from the bottom of the car) and the 24mm head of it broke off. now i am left with this. This thing is in there tight! i removed the intake manifold to get a better grasp at it and this is what i have left. I tried some vice grips and channel locks but the soft metal on the sensor just wants to shred. I cannot get this to budge. I guess my real questions is, if i cannot get this out of there, can i drill and re-tap (beacuse i think that's maybe my only option)? Anyone else been in this situation before with the knock sensor?

MM3Kwolik

Use a reverse threaded extractor. You may need to drill out the center of it a little more, but I would advise against drilling it out completely and retapping. That is completely unnecessary IMO. Another thing you could try is to use a dremel and cut a phillips head into the remainder and use an impact screwdriver (the kind you hit with a hammer) to remove the piece.

joes sled 2000

Have you tried using liquid wrench or similar on it ? Damn i have never seen this on a Honda before as thats REALLY on there . Try spraying some Pb blaster on it and let it sit for a while before you attempt to remove it . If that does not work then you may have to try and freeze it and the surrounding area . Its a bad spot as you know, so much care must be taken . Good luck !!

jsenclosure

I soaked it in pb blaster last night but I'm not counting on much. Good call with the dremel and impact, I can try that one

jsenclosure

Very true

Plant_s2k

This is old but did you manage to remove this?I’m in the same situation thanks

jaymz

Not the cheapest option but this may work. Induction tool to heat up bolts like a torch but no flame.

Car Analogy

Heat is like magic for frozen fasteners.

Plant_s2k

That bastard didn’t come out! so I drilled and retapped it. It’s all good now

Alec Kelley

What is the thread spec for that bolt? I have a new one on order but want to get ahead of it and get it removed.