Bought my boat last fall. Engine: Force 85hp OB, I think 1986 but not positive. Guys says it's had yearly changes of impeller, other than that don't know about maintenance to lower unit. Changed oil this year, and it was milky. Didn't have time to rebuild right away, so refilled with new oil and ran for a bit. Checked, milky again. Obviously I have a leak in the unit that needs to be fixed. I will definitely start with pulling the lower unit and replacing the water impeller, housing gasket, o rings, driveshaft and shift rod seals. I have done this all before, so I don't think I'll have a problem doing this part.<br /><br />Questions:<br />1. What if the leak is around the prop shaft? Is this hard to replace? need special pullers, tools, etc? Can somebody please give me a detailed explanation of doing this? I looked in a seloc manual, but they are doing a complete tear down of the lower unit and I think their instructions include more tear down than I really need. (ie: do I remove the 'anode'?)<br /><br />2. Where would I get a fitting to hook a bicycle pump to the unit and pressure test it? If I do this and don't see a leak around the prop shaft, should I leave it be, or replace it anyway since I have no idea when it was last serviced?<br /><br />3. Where can I buy a seal kit (preferably web site) that will include all needed parts for a good price? What numbers will I need to give them off my motor to insure I get the right kit, and where would I locate those numbers?<br /><br />4. Am I going to destroy my lower unit if I run it for short periods with slightly milky but fresh oil for a few days before fixing this? (planning a trip, no time to fix beforehand)<br /><br />Anything else I need to consider you can think of? Your help is much appreciated!
<br />Luckily, mine came out easily and still had plenty of grease and not a speck of rust on it.