Re: mariner 25 wwter in gear box
Jason;
Don't understand your question. You must have drained it the first time to discover if there is water entry into the gearbox. If you are worried about any residual water, there are not many places to hide in there, so just drain and re-fill the gearcase, again, using new seals on the Drain and Vent/Fill plugs.
Gerry