I need a threaded plug for the oxygen sensor bung- where can I get one? I was using a 3/8" pipe plug but it fell out (it's not wide enough). I don't happen to have my O2 sensor laying around either, otherwise this wouldn't be a problem. Exhaust leak is annoying and trashy.

thanks.

 

Stick a spark plug in it.

 

same size? lol sounds neat

 

I've had one in my headers for years.

 

Good idea!

As long as the hole is filled....I mean hell you're carbureted, not like it matters

 

If that sounds a little too crude for you, plugs are available. K&N P/N 85-21686, or Dynomax 35299.

Used spark plugs are cheaper though.

 

Even a new spark plug is cheaper then the plugs sold as O2 sensor plugs. Needs to be an 18mm, unlike our cars which use a 14mm spark plug.

An Autolite 386 spark plug works.

RBob.

 

bolt and washer. Buy a nut if you need to cut the bolt. Thread the nut on, cut the bolt, and grind it smooth, then turn the nut off. The nut will chase the threads.