"Hi guys. I have done lots of
"Hi guys. I have done lots of reading over the past year on this site and have learned lots. I now find myself in need of some advice from some of the resident experts. I have a 2005 Bayliner with a 3.0 Mercruiser with an Alpha 1 gen 2 out drive. Late in the summer I had to start adding gear oil to the monitor on a fairly regular basis. In the middle of September I decided to drain the gear lube and start trying to find the leak. There was no water in the gear lube when I drained it. I pulled the water pump housing and discovered some oil around the driveshaft seal. I changed the drive shaft seal, carrier o-rings, shift shaft seal and also the quad seal that goes between the upper and lower gear case. I filled the out drive with oil and assumed that the problem was fixed.....wrong assumption...the next morning there was a puddle of gear oil on the floor beneath the out drive. It seemed to be leaking from one of the drain holes that are just below and on each side of the shift shaft seal carrier. I pulled it all apart and checked it out again, this time the oil seemed to be leaking from the upper gear case. I pulled it off and changed the drive shaft seal, the o-rings for the crown/pinion gears, the anti-dribble valve seal and I also installed a new upper gear case to transom gasket/o-ring set.
I put it all back together and installed on the boat, filled with oil.....and you guessed it....the next day there was a puddle of oil on the floor. Do you guys have any suggestions as to what I may have over looked? If I need to pressure test the out drive, how do I do that?
Sorry for the long winded post. It is a long winter here in Calgary yet, so I have lots of time to get this figured out. I really don't want to take it in to one of the local shops.
Thanks."
"Hi guys. I have done lots of reading over the past year on this site and have learned lots. I now find myself in need of some advice from some of the resident experts. I have a 2005 Bayliner with a 3.0 Mercruiser with an Alpha 1 gen 2 out drive. Late in the summer I had to start adding gear oil to the monitor on a fairly regular basis. In the middle of September I decided to drain the gear lube and start trying to find the leak. There was no water in the gear lube when I drained it. I pulled the water pump housing and discovered some oil around the driveshaft seal. I changed the drive shaft seal, carrier o-rings, shift shaft seal and also the quad seal that goes between the upper and lower gear case. I filled the out drive with oil and assumed that the problem was fixed.....wrong assumption...the next morning there was a puddle of gear oil on the floor beneath the out drive. It seemed to be leaking from one of the drain holes that are just below and on each side of the shift shaft seal carrier. I pulled it all apart and checked it out again, this time the oil seemed to be leaking from the upper gear case. I pulled it off and changed the drive shaft seal, the o-rings for the crown/pinion gears, the anti-dribble valve seal and I also installed a new upper gear case to transom gasket/o-ring set.
I put it all back together and installed on the boat, filled with oil.....and you guessed it....the next day there was a puddle of oil on the floor. Do you guys have any suggestions as to what I may have over looked? If I need to pressure test the out drive, how do I do that?
Sorry for the long winded post. It is a long winter here in Calgary yet, so I have lots of time to get this figured out. I really don't want to take it in to one of the local shops.
Thanks."