gearbox fluid

[steve1001]

I normally get 3 or more goes out of a copper sump washer by backing it up with a bit of ptfe tape. The ptfe tape consolidates the joint.

I carefully wrap ptfe tape over the washer and make a very neat job of it.
I roll ptfe tape on my knee to make string. Then I wind a little on the sump plug thread, not over the whole thread, but around the thread immediately in front of the washer ie. make a ptfe ring.

I ensure the joint surfaces are perfectly clean and never ever overtighten.

Steve (saving you 50p)