Antifreeze bung hole

[BSmith]

It looks like the bung hole for the radiator drain is half broken off. It was plugged with a piece of wood. I'm not sure what the best way is to repair this. Any help would be greatly appreciated.

[Bob McCarty]

If you have pipe thread taps, you might see if you can tap 2-3 threads and maybe use some teflon tape on a new pipe plug.

[Qtr Milr]

If the above suggestion fails you could drill and tap it out to the next size bigger....

[BSmith]

Dumb question, but I'm guessing I'll need to grind off what's left first before I tap the hole?

[Bob McCarty]

Dumb question, but I'm guessing I'll need to grind off what's left first before I tap the hole?

I'd try it like it is first. The longer, unbroken part might still have some threads in it.

[Don McCombs]

If the threads are still usable, you may want to consider using something like this, instead of taking a pipe plug in and out multiple times. Use a threadlocker to keep it in place. You will have to maintain an awareness of the vulnerability of a fitting like this, though.

[Glen]

Hi,
If the hole is not usable, being broken, or can't be rethreaded to a bigger size, you might need to buy a used housing, and replace it.
JP Tractor Salvage, at the bottom of the page might have one.

Below is a pic from TM Tractor of it. You have to put the steering gear parts into it, and the radiator, etc.
It's good to change the serial number plate too, so you have the right plate on the tractor.