radiator

[Wally]

Has a good plug and seal...yet continues to slow leak. Any ideas?

 

Edited October 9, 2020 by Wally

[heyitsrama]

Leaks from the fitting? Can use Teflon tape, or permatex thread sealer and see if that helps.

[Zed Head]

1 hour ago, Wally said:

Has a good plug and seal...yet continues to slow leak. Any ideas?

The seal is not good.

I used a steel bolt on my OReilly Auto radiator.  Drilled a hole in it so it worked like the plastic ones.  It's surprising how few options there are for those plugs, and all of the options are poor quality.

[siteunseen]

9 minutes ago, Zed Head said:

The seal is not good.

I used a steel bolt on my OReilly Auto radiator.  Drilled a hole in it so it worked like the plastic ones.  It's surprising how few options there are for those plugs, and all of the options are poor quality.

I did exactly what Zed Head did on my O'Reilly radiator too but I didn't drill a hole for draining. I have to pull the lower hose off to get the fluid out. I also used Teflon tape as Heyitsrama suggest.

[Patcon]

check for cracks near the drain port or porous welds

[siteunseen]

2 hours ago, Patcon said:

check for cracks near the drain port or porous welds

And that flat rubber washer.

[Wally]

got it fixed. put some teflon on plug. There was a small rubber O ring slightly inside. It was causing leak. Once i removed it and tightened....no leak