Leaking Gearbox Drain Plug

[Flynndog]

Hi guys I have a leaking gearbox drain plug.

Excuse my ignorance but is there a copper washer or something easily to replace it or get a new plug?

 

[Rumpig]

No washers, breather might be blocked causing pressure to build up if its not just loose.

 

[Flynndog]

Definitely not loose. Has been leaking very slowly for a while but need to rectify it with my big trip coming up.
Thanks mate will check the breather

 

[fourocker]

Get yourself some Loctite hydraulic sealant to apply to the thread of anything you don't want to leak, unfortunately it means taking the plug out to thoroughly clean the thread and apply the sealant but it's good stuff, we use it all the time in industry and it would be a must take for me on a big trip because it can be very useful for many applications, also lets you undo things again easily.