Hello,
I have a 2006 Mercruiser 3.0 with a Alpha I Gen II Drive system. I bought the boat last spring so this winter was the first time doing all the maintenance. Part of my winterization process in the fall was to drain the gear oil out of the drive and remove the lower unit from the boat. I do this for a few reasons, but mainly so I don't have to worry about it sitting in a few feet of snow since it's so close to the ground when trimmed down.
Anyways, I re-installed the lower unit yesterday, after a new impeller and a passing pressure test. After filing it with gear oil to the vent hole from the drain plug with a pump (per the manual), I proceeded to add oil to the gear lube monitor but didn't get any flow. After giving it about an hour to do something (I thought maybe it was too cold to flow) nothing happened.
There is a disconnect about halfway between the monitor tank and the outdrive housing, so I took it off there and found there to me some debris in the hose between the fitting and the tank so I blew air through it and got it all cleared out. I then blew some air from the quick connect into the outdrive and that was perfectly clear. So I re-installed the monitor and could easily blow air form the tank into the lower unit (since the top vent plug it out I can hear the air coming out).
So now I thought I fixed it for sure. Nope, I filled the tank back up and it wouldn't flow into the drive.... let it sit for half hour or so and still nothing coming out of the vent screw. I even tried lightly pressurizing the tank to get it to flow and I got a little bit, but not much. I even checked to make sure that the monitor tank is the highest point in the system and it is at least 6" higher than any point of the hose and probably 12-18" higher than the top of the outdrive...
Anybody have any ideas to why this is happening? At this point I figure that the drive is full to the vent screw (which is where it would be without the darn monitor) so maybe if I run it for a while the expansion/ contraction of the oil with force it to flow and work out any air in the line.
Thanks in advance.
I have a 2006 Mercruiser 3.0 with a Alpha I Gen II Drive system. I bought the boat last spring so this winter was the first time doing all the maintenance. Part of my winterization process in the fall was to drain the gear oil out of the drive and remove the lower unit from the boat. I do this for a few reasons, but mainly so I don't have to worry about it sitting in a few feet of snow since it's so close to the ground when trimmed down.
Anyways, I re-installed the lower unit yesterday, after a new impeller and a passing pressure test. After filing it with gear oil to the vent hole from the drain plug with a pump (per the manual), I proceeded to add oil to the gear lube monitor but didn't get any flow. After giving it about an hour to do something (I thought maybe it was too cold to flow) nothing happened.
There is a disconnect about halfway between the monitor tank and the outdrive housing, so I took it off there and found there to me some debris in the hose between the fitting and the tank so I blew air through it and got it all cleared out. I then blew some air from the quick connect into the outdrive and that was perfectly clear. So I re-installed the monitor and could easily blow air form the tank into the lower unit (since the top vent plug it out I can hear the air coming out).
So now I thought I fixed it for sure. Nope, I filled the tank back up and it wouldn't flow into the drive.... let it sit for half hour or so and still nothing coming out of the vent screw. I even tried lightly pressurizing the tank to get it to flow and I got a little bit, but not much. I even checked to make sure that the monitor tank is the highest point in the system and it is at least 6" higher than any point of the hose and probably 12-18" higher than the top of the outdrive...
Anybody have any ideas to why this is happening? At this point I figure that the drive is full to the vent screw (which is where it would be without the darn monitor) so maybe if I run it for a while the expansion/ contraction of the oil with force it to flow and work out any air in the line.
Thanks in advance.
