Rounded off drain plug

[lilranch2001]

Pipe wrench has been tried again and again, both by myself and two others more experienced. Same result each time, material being sheared off the plug. If that result is due to improper grip and/or operator error, that's down to the lack of clearance around the wrench adjustment knob itself.

In other news, made hay yesterday.

Not as of June 5.........

 

[airbiscuit]

Cold chisel, sharpened good, applied to cut into the surface in such a way to produce torque to undo the thread. First direct blows to cut a notch in a close to radial direction, then when a good notch is established, shift the angle to being closer to tangential to the surface to make it rotate out. This is my standard method with nuts that strip out. In your case it is a plug, but apparently there is still a bit sticking out that one can access.

Whenever I tried that method, the only thing that came off was the skin on my knuckles.

 

[goeduck]

I cant believe this thread is still going, what in the World can folks make so many post over a rounded off drain plug. I am sure the OP has fixed that plug months ago.

Not a chance, this is not just an ordinary rounded off drain plug.... :talktothehand: :talktothehand:

 

[sixdogs]

Seems the moment of opportunity has passed when the plug could have come out either by doing it right or farming it out to a shop that would do it right. The plug appears pretty knarled up now and will either have to be done by a shop or it will stay in there forever.

 

[4570Man]

X2 on this.
I had to replace fan clutch on my Ford truck a while ago. 38mm nut I think it was. I tried everything, nothing worked. Then I used my air chisel with it on left edge of nut corner. Wow! It turned, then next corner, etc. It spun off in a minute.
New one I installed with wrench, locktite on threads.

I’ve also used the air chisel method on fan clutches with success. Did you mean antiseize instead of locktite? The fan clutches of the 90s at least on Chevys are bolted on. They’re a pain to deal with but at least they do come off.

 

[Fuddy1952]

I’ve also used the air chisel method on fan clutches with success. Did you mean antiseize instead of locktite? The fan clutches of the 90s at least on Chevys are bolted on. They’re a pain to deal with but at least they do come off.

I used locktite because if it backed off fan would go into radiator. It's held on by one large nut. That air chisel I discovered by accident. It was fantastic.

 

[tre873]

If you used the air chisel to tighten the new one, you may be replacing it sooner rather than later. Using an air chisel has been know to take out the front pump bearing.

 

[tjkubota93]

We used to do the air chisel thing at the dealer if we were too lazy to get the right tool :/

Next time you try a wrench, hit it straight down, not it a rotating direction. For some reason, that pops them loose.

 

[goeduck]

We used to do the air chisel thing at the dealer if we were too lazy to get the right tool.

I think I once bought a car from that dealership

 

[Fuddy1952]

No...air chisel to remove only, proper wrench to install. One holds the four fan blade bolts while you turn the 38mm wrench.
Air chisel to remove similar to westcliffe01 said.