Removing knock sensor bolt
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From: Conshohocken, PA
Removing knock sensor bolt Just keeps getting better..
tried to remove the knock sensor. It started spinning within itself (really that is the worst design of all time). So I brought out the vice grips. It's coming.. almost... nope. Just broke the sensor off the bolt. So now just the bolt is in there.
applied some PB and going to reapply tomorrow. Then going to try vice grips on the bolt saturday morning. Any better ideas? There's absolutely no room to get a drill in there at that angle.
tried to remove the knock sensor. It started spinning within itself (really that is the worst design of all time). So I brought out the vice grips. It's coming.. almost... nope. Just broke the sensor off the bolt. So now just the bolt is in there.
applied some PB and going to reapply tomorrow. Then going to try vice grips on the bolt saturday morning. Any better ideas? There's absolutely no room to get a drill in there at that angle.
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Try heat if you can get in there without burning up other stuff. Maybe just a HH cylinder of MAP or propane to heat around the bolt
If you can't get heat in there than PB let it sit overnight and vice grips
The KS goes into a water jacket so when you do get it out....coolant will come pouring out
If you can't get heat in there than PB let it sit overnight and vice grips
The KS goes into a water jacket so when you do get it out....coolant will come pouring out
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I was thinking about employing my trusty map torch. I've taken so much out of the bay that there's really nothing there to worry about burning
Ideally.. haha. Seems like this motor is doing everything in its power to keep me from draining it.
Ideally.. haha. Seems like this motor is doing everything in its power to keep me from draining it.
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From: Conshohocken, PA
my other idea is to crank a nut on there until it gets to the block and get it real snug. Theory being that the nut may push against the block hard enough to to apply the pressure needed on the rod to just break up whatever crud us holding it on. Then apply vice grips to rod to spin it.
orrr.. could I put two nuts on there, tighten them together real tight so they apply pressure against the threads and keep each other from spinning. Then use the inside nut as my method of turning the threaded rod out.
Last edited by nodnarb481; Mar 23, 2018 at 03:56 AM.
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There are enough threads and I've got enough wrenches that I'm taking a stab at that. Its soaking in PB. I'm going to hit the block with some heat Saturday morning. And then I'm going to give it a shot with the two-nut method. If that doesn't work, I'll have to resort to some more extreme measures.
For stubborn bolts or as in your case, a lot of time it helps to go the opposite direction meaning try tightening it just to see if it moves, then start backing it out and back in over and over, this seem to kinda make its own threads sort of say and helps in the removal, I have done this several times and has always worked especially on lug nuts. I dont remember if there is room but a thread knocker helps also.
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Got it out. Acetone, ATF, and patience. Let it soak for a couple hours while we cleaned up the block. Flat vice grips did the job eventually. That mix of acetone and atf made a night and day difference.
I also met this guy at sears hardware who was just a total brain. He built me this rig to try to get it out that was just genius. I ultimately didn't get to use it because of how I broke the sensor off. But it really was somethin else. When I get to a computer, I'll post up some pics and an explanation of it.
I also met this guy at sears hardware who was just a total brain. He built me this rig to try to get it out that was just genius. I ultimately didn't get to use it because of how I broke the sensor off. But it really was somethin else. When I get to a computer, I'll post up some pics and an explanation of it.
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From: Conshohocken, PA
This was taken from another forum. Did some reading around. I applied PB blaster for several days and got nowhere with it. Then Saturday morning, I mixed some acetone and ATF in a little oil can with a nozzle and gave it some sprays. We let it sit while cleaning head gasket off the block. Grabbed it with the vice grips, same as I was before, and it slipped right out.
Some corners of the internet call bogus. I'm no chemist, myself. But from my experience, it seems to work.
Some corners of the internet call bogus. I'm no chemist, myself. But from my experience, it seems to work.