184 Radiator Drain Plug

[rednax]

The radiator drain plug on my 184 is slightly rounded and the space is too tight to get a pipe wrench in. Any suggestions? Thanks.

[Eugene]

If you are draining the cooling system, -- remove the coolant manifold on the lower right side of the block. Two bolts.
You will need to make another gasket.

[Dale Finch]

You can also file the flats down to the next size pipe plug socket... I've done that on a couple.
https://www.jbtools.com/grey-pneumatic-1211p-3-8-drive-11-pc-pipe-plug-socket-set/?gclid=CjwKCAiA17P9BRB2EiwAMvwNyD8FMggf9QR10OLMz9yP4wMSJSLmG2HfaKKuzhxUWBiDu8mshz8tUxoCivgQAvD_BwE
Then replace with a new plug.

[rednax]

Thanks, I'll try to file the plug down first, then remove the manifold if it doesn't work.

[rednax]

I took the coolant manifold off the engine and heated the metal around the plug and it came right out.

[tucker86]

The radiator drain plug on my 184 is slightly rounded and the space is too tight to get a pipe wrench in. Any suggestions? Thanks.

My 184 has a stuck drain plug too. I just pulled the lower hose off on mine to drain the coolant.

[Gabe184]

I'd make one of the following investments: a 3/8 square socket, a hex head (internal or external) pipe plug, or the pipe plug offered by J&D productions. The latter has a thick cast head on it akin to a wing nut, so a small adjustable is all that is needed to synch up or loosen it. I got it for the hell of it with some other parts since the square on mine was shot and I love it.