Lower Unit Pressre Test

[pk]

;D

Hello; I would like to know the proper procedure for doing a pressure test on my outdrive. Specifically, I have a 1988 V-20 with a 205 mercruiser. The lower unit has a remote oil resovoir on the transom. Every year I lose about an inch of oil ( about half a cup or so) from the bottle. I never see it in the water & there are no leaks in the boat. I suspect I may have a seal leaking somewhere & will try a pressure test to try to narrow the problem. Thanks in advance for any feedback.