1997 force 75hp oil leak at propeller area

[chideok]

I bought this boat a year ago and never noticed oil leaking at propeller area until now. Is this normal and what type of oil is it. How do I fix this and what caused it. I cant even find where to check the oil level. Please educate me with about this engine.

 

[jerryjerry05]

Re: 1997 force 75hp oil leak at propeller area

First fill out the profile,Then add a pic of the problem.The oil that's dripping might be unburned gas/oil.There are a couple of screws on the side/top and bottom of the lower unit.Some units have a fill and vent on the top of the lower.Tilt the motor up and loosen the bottom screw.Loosen it enough to drain a few drops of oil.
If there is any water or milky oil in there ,you have trouble.Do this and post your findings.Jerry

 

[chideok]

Re: 1997 force 75hp oil leak at propeller area

First fill out the profile,Then add a pic of the problem.The oil that's dripping might be unburned gas/oil.There are a couple of screws on the side/top and bottom of the lower unit.Some units have a fill and vent on the top of the lower.Tilt the motor up and loosen the bottom screw.Loosen it enough to drain a few drops of oil.
If there is any water or milky oil in there ,you have trouble.Do this and post your findings.Jerry

Hi Jerry, the engine is mercury force 1997 75hp called 75 ELPT serial number is OE255906 with 5250 rpm. I am attaching 2 photos and will check to see if there is water.

 

[chideok]

Re: 1997 force 75hp oil leak at propeller area

There is no water in the gear oil.

 

[jerryjerry05]

Re: 1997 force 75hp oil leak at propeller area

That's probably unburned gas/oil.It usually works it way down when you tilt the motor up.
Get a service manual (factory is best)and start reading.Don't forget there are no dumb questions.Jerry

 

[chideok]

Re: 1997 force 75hp oil leak at propeller area

Thanks Captain Jerry, I think you are right. I changed the gear oil and it does not match with the oil leak. And the leak was limited.
Thanks again

 

[jason32038]

Re: 1997 force 75hp oil leak at propeller area

If you put it on your finger your lower unit lube will smell like grease. 2 cycle oil has its own distinct smell.