Sterndrive Oil Level Question

[jetmart]

1999 5.0 L Merc with an Alpha 1 gen 2 drive with sterndrive oil reservoir.

Question I know it is very important not to overfill the lower unit with too much oil or you run the risk of blowing seals. With an oil reservoir how is the oil level in the drive controlled? I assume it is more then just gravity.

I have the manuals and can't seem to figure this out. I have no reason to know other then just curious.

Thanks

 

[Bondo]

Re: Sterndrive Oil Level Question

I assume it is more then just gravity.

Nope,... Just gravity...

 

[jetmart]

Re: Sterndrive Oil Level Question

How does gravity do it and not overfill the lower end? The reservoir is 3 ft above the drive?

 

[Don S]

Re: Sterndrive Oil Level Question

The only time overfilling hurts is when a drive warms up and there is no room for expansion. With the reservoir, you have that room and you can't overfill the drive.

 

[jetmart]

Re: Sterndrive Oil Level Question

Thanks Don,

Makes complete sense now.