mercruiser gear oil leaking.

[xltier]

I have a 1994 crownline bow rider for tubing that has a gen 2 outdrive that is leaking oil in the u joint bellows.i pulled the drive and it pressure test at 15lbs ok. anybody ever seen that before.

 

[Bt Doctur]

called a rotating seal leak, can also be from loose input assembly. disassemble, inspect yoke for grooving, install new seal. presure test to 10 psi

 

[harringtondav]

Did you see lube coming out around the yoke? That is a single seal that holds vacuum, but releases pressure. So a little lube isn't unusual.

 

[Bt Doctur]

Did you see lube coming out around the yoke? That is a single seal that holds vacuum, but releases pressure. So a little lube isn't unusual.

I don`t think so

 

[xltier]

I went thru 3 monitor bottles full in less than 1/2 tank of gas.

 

[Bt Doctur]

then you have a leak that needs fixing

 

[Bt Doctur]

I have a good input shaft assembly less bearings from a gen ii on the shelf, PM if interested

 

[harringtondav]

I don`t think so

I think you're right. I'm always confused with that seal, especially when replacing. Dislecia. Thinking l put mine in backwards during last winters seal job. My son used a 1/2 " of lube over the weekend. Bet I find it in the drive shaft bellows this winter. Garter spring inside Right?

 

[achris]

I think you're right. I'm always confused with that seal, especially when replacing. Dislecia. Thinking l put mine in backwards during last winters seal job. My son used a 1/2 " of lube over the weekend. Bet I find it in the drive shaft bellows this winter. Garter spring inside Right?

Right.

 

[xltier]

I just thought pressure testing was a safe bet for no leaks.

 

[stang32]

I have a 1994 crownline bow rider for tubing that has a gen 2 outdrive that is leaking oil in the u joint bellows.i pulled the drive and it pressure test at 15lbs ok. anybody ever seen that before.

I'M confused, he said he pressure tested it and it held. im dealing with the same issue. the drive was resealed in june but now has a bellows full of oil and a cup full in the drive. pressure test done and it holds at 15psi, 10 psi & 5 psi. rotating ytoke several times each time i check on it with no drop in pressure.

 

[Bt Doctur]

I wonder if mercruiser is having the seal problem again I use a National seal that is the oem from years ago

 

[stang32]

whats the national seal part #

 

[Bt Doctur]

National 712250 it is the original seal that was listed as 483323VGO and used in the early drives