Re: Contaminated Transmission Fluid
There is an easy way to drain the SD20 Sail Drive oil when in the water, but it needs a little preparation.
Get a spare oil drain screw, good if you find a plastic one, or have one made from nylon or pvc, drill a hole inside and attach a hose.
When you want to change oil, be sure youre oil fill screw is really tight, dive, take out the original screw, as oil is lighter than water no oil will come out, as the top of the sail drive is closed, almost nothing will go in. screw in your nylon crew with the hose.
now you may suck all oil through your hose with one of those small manual pumps after opening the top screw.
Do not change the screw now, fill up with fresh oil, totally full, you will pump out that little overfilled later. This will prevent seawater coming in when you change the bottom screw. Do not forget to close the fill screw before ;-)
After removing the hose take out the excess oil from top, it is only a little bit, still clean enough for other applications on board.
Viola, so easy - at least when the sea is warm ;-))