Evinrude Lower Unit "Center Screw"

[JHZR2]

Trying to help with some boat maintenance on a late model 60 HP etec.

Found the top and bottom magnetic plugs for draining the lower unit. However there is a screw halfway in there that is also in the lube for the lower unit.

What is it for?

I know we fill from the bottom plug until it comes out the top one.

Thanks!

 

[OVERKILL]

Got a pic? I've only ever used the top and bottom screws.

 

[Rand]

it might be an oil level overflow



usually with 2 you have the drain/fill on the bottom and the vent on top.


I think some hada 3rd thats for oil level.
I havent ever seen one personally(with 3 holes)

a pic would help. I've worked a bunch on some smaller units but nothing ever with 3 holes.

if its a different type of screw it could be the screw that holds part of the shifting lever. If it is and you remove it.. it will require disassembly to fix it.

 

[Donald]

If thats the engine with push button shift it requires a different lube than normal outboards.

 

[JHZR2]

The screw in the center between the top and bottom service plugs.

 

[OVERKILL]

If you remove it, does gear oil come out? It looks more like a water screw to me for draining water from the impeller.

 

[JHZR2]

Yes gear oil came out, but not a lot.

Serviced it and went fishing all day so all is well...

 

[another Todd]

I did a little checking, and it appears that center screw is the pinion bearing retainer. Do not remove it unless there is a problem with it.

 

[Tuffy1760]

Not to change the subject but has that LU been repainted or replaced?? Can I get a pic of whole motor?? Did you buy this new or used?? Thanks.