Spark plug badly crossthreaded
#1
Spark plug badly crossthreaded
Today car flooded badly and i needed to pull the plugs to put some oil in there to get compression back up. I go pull the spark plug boots off and my front rotors leading plug looks to be jammed in there at quite an angle, i pulled it out and, yep, some dumb *** got it cross threaded, but didn't stop, just jammed it in until it stopped. So i have no idea wtf to do... i added a picture of whats going on, sorry for the size, i couldn't get it any smaller without wrecking the quality. i also noticed the rust in there... What would be the best course of action for me to take?
#5
maybe its time to start that turbo swap...
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#10
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yeah, obviously someone who dropped out of school... doesn't take a rocket scientist to realise that plug wasnt in their right.
But yeah I agree with everyone here, you're pretty much hosed for that. Now would be the time to do that swap.
Good luck
But yeah I agree with everyone here, you're pretty much hosed for that. Now would be the time to do that swap.
Good luck
#11
i found a tool that you put in the hole and then tighten and it expands, so im going to try getting it on the good threads and then backing it out while running air in through the top plug hole, in an attempt to blow everything that may come loose out instead of it falling in. I gather i dont really have alot of options here...
#15
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Just a note... if you ever do run a tap through it, and want to keep the metal chips from going in the engine, coat the tap in vaseline, which will keep most of the chips from going where they shouldn't.
Also works with drill bits.
Also works with drill bits.
#16
I actually experimented with this. When rebuilding my motor, I took a rotor housing from the disassembled engine which had somewhat messed up spark plug threads. I ran one of those spark plug thread repairer taps all the way into the threaded portion of the spark plug hole until it bottomed out. And honestly, I don't remember threads going into the actual rotor housing at all. I used cutting fluid on the tap but I did not use the vaseline trick mentioned above.
The holes on the inside of the housings are not very big, especially the trailing holes. I think if you could extract the burrs from the the hold you'd be fine.
The holes on the inside of the housings are not very big, especially the trailing holes. I think if you could extract the burrs from the the hold you'd be fine.
#17
Cake or Death?
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There is nothing "rotary specific" about installing a spark plug.
It's hard to do this sort of damage if the plug is started by hand, so I expect yours was started with a ratchet- or even more heinously, an air ratchet- which tends to mask the crossthread till it's too late.
It's hard to do this sort of damage if the plug is started by hand, so I expect yours was started with a ratchet- or even more heinously, an air ratchet- which tends to mask the crossthread till it's too late.
#18
MECP Certified Installer
There is nothing "rotary specific" about installing a spark plug.
It's hard to do this sort of damage if the plug is started by hand, so I expect yours was started with a ratchet- or even more heinously, an air ratchet- which tends to mask the crossthread till it's too late.
It's hard to do this sort of damage if the plug is started by hand, so I expect yours was started with a ratchet- or even more heinously, an air ratchet- which tends to mask the crossthread till it's too late.
For some reason this story of stupidity reminds me of one time I helped my buddy rebuild his 65 mustang. We had assembled the entire engine and the last piece was going on, the air cleaner, and he drops the wing nut down the carb.
I told him "well, let's take it back apart" and he insisted it was okay to turn the motor over. We argued for a while and finally I threw my hands up and said "I am not helping you rebuild it again dumbass" and let him start it.
It ran of course, but not for long.
That wing nut melted to the top of one of the pistons and ruined an intake valve.
#22
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i found a tool that you put in the hole and then tighten and it expands, so im going to try getting it on the good threads and then backing it out while running air in through the top plug hole, in an attempt to blow everything that may come loose out instead of it falling in. I gather i dont really have alot of options here...
I just discovered these recently also. I thought they were a good idea but have never used one. I am not sure this one is the right size but I am just using it as an example. Which tool did you use? Share that info to help others out.
#23
http://www.amazon.com/KD-Tools-Back-...2218554&sr=8-2
I just discovered these recently also. I thought they were a good idea but have never used one. I am not sure this one is the right size but I am just using it as an example. Which tool did you use? Share that info to help others out.
I just discovered these recently also. I thought they were a good idea but have never used one. I am not sure this one is the right size but I am just using it as an example. Which tool did you use? Share that info to help others out.
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