What else, while the O/D is off?

martyh

Petty Officer 3rd Class
Joined
Jul 12, 2006
Messages
93
My outdrive started making a growling noise about 20 yards from the dock today.
Took it back home and tore into it. Found bad gimble bearing. The boot is good and the u-joints look and feel good.

What else should I look for or replace while I am in there?

1998 Volvo Penta 3.0 Cobra SX drive
 

dubs283

Vice Admiral
Joined
Jul 27, 2005
Messages
5,332
Re: What else, while the O/D is off?

check engine alignment and condition of coupler and driveshaft splines

grease engine coupler splines

grease u-joints, if serviceable
 

Gary H NC

Fleet Admiral
Joined
Dec 1, 2005
Messages
8,972
Re: What else, while the O/D is off?

If the bellows are more than 3 years old or so i would do them while your in there.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: What else, while the O/D is off?

Was there water or a rusty mess in the bellows? Gimbal bearings seldom fail for no reason. Are you in salt water?
 

martyh

Petty Officer 3rd Class
Joined
Jul 12, 2006
Messages
93
Re: What else, while the O/D is off?

I have no history of the boat other than it was parked in saltwater during the summer months.

When I had found it, the prior owner had not winterized it and things cracked over the winter. It had already been to a marina to be checked out. The engine had already been taken apart and O/D had been removed for inspection. Basically, I bought it as a basket case project. I have had the boat for almost 2 years and I believe it had sat for a year prior to that in the disassembled state while the owner decided what to do with it.

The inside of the boot did not look rusty or milky, and the u-joints were the same way. No signs of rust and they felt smooth. I spun the gimble bearing by hand before putting the o/d back on and it felt smooth. Prior to putting the o/d back on I hit the side zerk fitting with a few shots of grease and watched it push through the seams, and everything seemed fine.

Took the o/d back off at the shop after the trip to the lake and spun the gimble bearing again by hand, it is very rough and course. You can definitely hear and feel the noises in the bearing.

On a side note, I started the engine and broke the cam in without the o/d on the boat so there was no engine drive time on the bearing.

Is there a tool ?kit? available for the Volvo Penta Gimble bearing replacement? I will order the engine alignment bar but would like to order the other tools at the same time.
 
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