coolant block drain plug
Great. I removed the coolant block drain plug and now I can't get it to screw back in. It's got fine threads. It's in a really hard to get-at place from underneath the car, but I did manage to remove it. Needless to say, it was tight getting off, but I got it off. Now it seems about impossible to get the threads started again to screw it back in. Looking closely at the threads on the plug, there's a couple fairly obvious buggered up areas on the first thread, as if the part of the thread squished a little so there's metal from the thread blocking the groove. Don't understand how it happened; all I did was unscrew the plug. It was really tight turning all the way out, with no real visible seepage or leakage seeming to happen, until right at the end it more or less popped out hard and all the water came gushing out. Maybe that force the way it happened ruined that thread. So I guess I'd either try to re-thread the dang plug somehow or have to get a new one somewhere? :mad::mad::shrug:
And my luck I suppose same thing might've happened to the threads in the engine block too. No fun |
If you go to a site like hondapartsnow, you can find the plug in the cylinder block/oil pan section. You should be able to get it from the dealership.
I'd definitely try fixing the threads with the proper die. |
Don't have a dealership nearby, and the closest one never has anything I ever need in stock anyway. Will probably check out hondapartsnow per suggestion. Would love to just be able to fix the threads but don't have a die or know the proper size anyway. Maybe if I could somehow find out the thread gauge I could check around at a machine shop or somewhere where they could do it for me. Not sure how much they'd charge for as compared with total cost from place like hondapartsnow. I wonder what I did to ruin the thread anyway. Twisted it funny at the end or something? All I did was unscrew the thing. Thanks
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Maybe go to an autoparts store with the plug and see if they have something that matches?
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Originally Posted by PAhonda
(Post 352841)
Maybe go to an autoparts store with the plug and see if they have something that matches?
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I've had success cleaning up threads with a triangle shaped file.
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Originally Posted by EXV6NIGHTHAWK
(Post 352862)
I've had success cleaning up threads with a triangle shaped file.
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They make something called a thread file. It's got teeth that match the thread pitch, but since it's a file you don't have to know the diameter. Each file has 8 different pitches.
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Originally Posted by JimBlake
(Post 352880)
They make something called a thread file. It's got teeth that match the thread pitch, but since it's a file you don't have to know the diameter. Each file has 8 different pitches.
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Your best bet is to take it to parts store or hardware store and try to use the gauge most stores have.
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