[pk]

Hello Again: The reservoir I have on the transom is not for the trim pump. That is a seperate item.
The oil reservoir I am talking about was an option from mercruiser installed by the original owner. It consist of a clear plastic quart bottle mounted in a frame on the transom. A hose comes out of the bottom of the bottle & passes through a fitting in the transom. From there, it connects to the upper vent hole on the outdrive. The purpose of the reservoir, I guess, is to monitor the oil level in the outdrive without having to take the boat out of the water.
There is a procedure in my merc manual for changing out the lower unit oil when the boat is equipped with this remote reservoir. I am thinking that I messed up the procedure and have some air trapped in the lower unit. Over the course of the summer the air vented out and was replaced by oil in the reservoir. Who knows. I am not too woried because oil going out is better than water coming in. I would still like to find out for sure what the problem is. I have a picture of the transom of the boat but I can not figure out how to include it in this reply.
Thanks again for your comments.