Merc Bravo 3 u joints

[homelite]

I have an 06. The s/n of the drive is OW915101. Ratio 2.20:1. My question is simple. Does it have U joints that need lubed, or are they lubed for life? The dealer says "some are and some aren't" I believe there is a deffinite way to know. I just don't have access to the service information. So....I'm asking for someone that knows. I see no reason the pull the drive if there is nothing to lube since gimple and splines can be lubed remotely. I will however pull the drive if there are U joints to lube.

Thanks in advance if someone knows.....

 

[haulnazz15]

Re: Merc Bravo 3 u joints

While I'm sure there is a serial number estimate of which B3's used sealed u-joints, I doubt there is an absolute way other than pulling the outdrive and checking for grease zerks. I say if it ain't broke, don't fix it.

 

[Don S]

Re: Merc Bravo 3 u joints

I see no reason the pull the drive if there is nothing to lube since gimple and splines can be lubed remotely.

Pulling the drive to check the engine alignment is something that should be done yearly. If a mount comes loose or something moves, you really want to know about it before it completely destroys the coupler and you have to pull the engine to replace that $400 item.
It's also how you can tell if you are getting water in the bellows, before it becomes a huge problem by the ujoints, and gimbal bearing being in water and rusting all winter.