1999 scr3000

[SailingHerbie]

Ok you gurus. Here is my latest problem in the bilge. The gear lube reservoir is "backing up" and building up pressure. This is causing a mess in the bilge as you can imagine. help....

[mmwjr]

It's normal for the lube to expand when running the boat. The cap of the reservior is suppose to vent to let air out as this happens. I have heard of these failing and result is a build up of pressure until it blows its top and lube ends up in the bilge as you described.

Replace the cap.

[SailingHerbie]

Thanks Mike, I was scared into thinking that maybe my outdrive was leaking and letting water in causing water pressure to push the lube back.
Thanks for your help

[Kevlar7r]

How full are you filling the reservoir? The full line is a long way from the top. It would take a lot of added volume to overflow the resevoir.

It has done this multiple times? Did you refil the reservoir between overflows?

[SailingHerbie]

I haven't re-filled the reservoir at all. It just seems to be under pressure because as you unscrew the cap it shoots into your hand.

[Phillbo]

Sounds like the vent in the cap may be clogged?

[SailingHerbie]

I hope so
Got a new one on order..