I removed my outdrive and didn't find what I was expecting

Wave34

Petty Officer 1st Class
Joined
Oct 17, 2017
Messages
341
New boat, so as preventive maintenance I decided to remove the outdrive.
I was expecting a dry bellow, but found a pool of oil. What is strange, is the the 2 U-joints seem dry, no dripping.
The week before, I changed the oil. Is it possible I filled too fast? I don't think, it took me almost 45 minutes.
The texture is like gear oil but the smell is not there, may be because it is new.

Also, I found an oil seal spring inside. Is it possible it is me that was not careful with the alignment tool that knocked something inside?

Oh, also there is like a spring wire inside the bellow, which seems out of it's groove. Is it used to hold the bellow in place?

The alignment tool is a Mercruiser one that I borrowed. There is a total of 3 steps. The one farthest from the handle goes in the splines, the second step, doesn't do anything, and the third step which is also the handle goes inside the gimball bearing. WhY they took the time to machine step #2?, why not left it the diameter of the first step?
Unless the Merc is different from the Volvo?

Inside the top bellow:

oil in bellow.jpg


oil seal spring

oil seal spring.jpg


oil seal spring2.jpg



ALIGNMENT TOOL VS DUOPROP SHAFT; STEP#2 NOT TOUCHING ANYTHING

tool.jpg



INPUT OF THE OUTDRIVE, IT LOOKS LIKE AN OIL SEAL WAS THERE?

OUTDRIVE.jpg
 

BRICH1260

Lieutenant
Joined
Jul 6, 2011
Messages
1,382
You`ve probably lost your input shaft seal and drive oil has leaked into the bellows. The alignment tool you have is the right one. Volvo and Merc use the same.
 

Wave34

Petty Officer 1st Class
Joined
Oct 17, 2017
Messages
341
By looking more into it, I see that there is an oil seal in front of the gimball bearing.
So, I must have knocked the lip of the seal with the alignment tool.

Since I don't what to remove the bearing to replace the seal, do you guys think I can buy an oil seal, take just the spring out of it, and from inside the transom install it over the seal lip?
 

Grub54891

Admiral
Joined
Jun 17, 2012
Messages
6,150
That inner seal is not needed these days. It was intended to keep the grease in there when you grease the greaseable type of gimble bearing. When installing a new non greaseable bearing, you clean up the excess grease and remove the seal, or just leave it there.
 

Keyboardman

Petty Officer 1st Class
Joined
Sep 10, 2015
Messages
360
Forget about trying to put the Garter spring back on. I keep knocking it off with the alignment tool. Seems like a lot of guys do. I was told by one of the "Gurus" on here to forget about putting it back on. Will work just fine without it.
 

Wave34

Petty Officer 1st Class
Joined
Oct 17, 2017
Messages
341
But does that seal acts as a safety in case that the bellow splits and water gets in?
May be having the seal without the Garter spring (thanks Keyboardman for the correct name) will help slow down water if the worst happens, even if it's not 100%?

Is it possible that Merc don't have a seal there? My friend never told me he had one when he checked his alignment.

Does removing the bearing destroy it?
When I turn it with my fingers it is smooth, without play.
I think I will just leave it like that.
 

Grub54891

Admiral
Joined
Jun 17, 2012
Messages
6,150
That seal won't stop or delay the boat from sinking if the bellows splits. It'll go down just as fast as it can.
Something about water and gravity, water always wins.....
 

Wave34

Petty Officer 1st Class
Joined
Oct 17, 2017
Messages
341
That seal won't stop or delay the boat from sinking if the bellows splits. It'll go down just as fast as it can.
Something about water and gravity, water always wins.....

Ok, I take notes.

The stainless steel rod that is there is looping the whole length of the bellow. It's like a reinforcement.

At the marine store, the bellows they sell don't have that steel wire. May be it's a Volvo thing.
 
Top