Oil in bellows questions…

TomB985

Petty Officer 1st Class
Joined
Apr 4, 2011
Messages
213
Thanks, everyone. Looks like I was wrong about the gasket because it’s still slowly leaking. Seems like time to get some tools and figure this thing out.

We know it's gear oil for sure, right? Level dropping in the bottle?
Yup, it’s slowly dropping. I put things back together, and it dropped from full to the min line after about 8 hours of engine time. From what I gather, I can run it like this until parts arrive and I have time to take it apart?

Some have mentioned that a worn yoke can be repaired with a Speedi sleeve. How do I find which sleeve I need? If I replace the yoke, the parts diagrams list GKN and Meritor part numbers. Is there a way to tell which one I need without taking it apart? Would a clamp-style press be sufficient to press out the U-joints, or would I need an H-frame press?

And finally, I can find aftermarket yokes from SEI and others for much less than Merc. Any reason not to use these instead of the more expensive OEM part?
 

TomB985

Petty Officer 1st Class
Joined
Apr 4, 2011
Messages
213
I also forgot to ask whether I’ll need to re-shim the pack when I replace the yoke? Or can I reuse the existing shims? @achris Youtube videos have been really useful, and I’m about to bite the $150 bullet and order an in-lb torque meter for bearing preload. Kind of frustrating to buy an expensive tool that will probably only be used for this job, but it’s cheaper than replacing the whole upper or paying a shop.

I’m about to order parts, and I‘m hoping to have everything needed before pulling it apart.

Thanks!
 

Scott06

Admiral
Joined
Apr 20, 2014
Messages
6,426
I also forgot to ask whether I’ll need to re-shim the pack when I replace the yoke? Or can I reuse the existing shims? @achris Youtube videos have been really useful, and I’m about to bite the $150 bullet and order an in-lb torque meter for bearing preload. Kind of frustrating to buy an expensive tool that will probably only be used for this job, but it’s cheaper than replacing the whole upper or paying a shop.

I’m about to order parts, and I‘m hoping to have everything needed before pulling it apart.

Thanks!
If you keep the original bearings no you do not need to reshim
 

Scott06

Admiral
Joined
Apr 20, 2014
Messages
6,426
Thanks, everyone. Looks like I was wrong about the gasket because it’s still slowly leaking. Seems like time to get some tools and figure this thing out.


Yup, it’s slowly dropping. I put things back together, and it dropped from full to the min line after about 8 hours of engine time. From what I gather, I can run it like this until parts arrive and I have time to take it apart?

Some have mentioned that a worn yoke can be repaired with a Speedi sleeve. How do I find which sleeve I need? If I replace the yoke, the parts diagrams list GKN and Meritor part numbers. Is there a way to tell which one I need without taking it apart? Would a clamp-style press be sufficient to press out the U-joints, or would I need an H-frame press?

And finally, I can find aftermarket yokes from SEI and others for much less than Merc. Any reason not to use these instead of the more expensive OEM part?
you can use the ball joint press

The yoke is probably ok but I usually use OEM parts.

The speedi sleeve willing to bet if you search here on iboat you will find the size . also you can find info about repositioning the seal about .030" rather or less deep into the housing so it rides on a different portion of the yoke where there is no groove.
 

nola mike

Vice Admiral
Joined
Apr 22, 2009
Messages
5,362
you can use the ball joint press

The yoke is probably ok but I usually use OEM parts.

The speedi sleeve willing to bet if you search here on iboat you will find the size . also you can find info about repositioning the seal about .030" rather or less deep into the housing so it rides on a different portion of the yoke where there is no groove.
and you can find the wrench for around $50
 

TomB985

Petty Officer 1st Class
Joined
Apr 4, 2011
Messages
213
Thanks! I’ve ordered parts and tools. I will probably finish the season before digging into it, but the job looks relatively simple once I have everything I need.
 

airshot

Vice Admiral
Joined
Jul 22, 2008
Messages
5,080
I did mine without the special tools, just replaced the upper seal, but installed it slightly out more to run on a fresh surface. A little time consuming because I went slow and made sure it was right, but not that difficult. If at all possible download the factory service manual, mine made it pretty easy..
 

chs marine service

Petty Officer 3rd Class
Joined
Jun 29, 2019
Messages
89
the 2 types of yokes can be identified by the color of the yoke black or grey.

#9864281A 2UNIVERSAL JOINT (1 required per assembly) (Black) GKN Assembly
#10853635YOKE, Gear End (1 required per assembly) (Gray) Meritor Assembly
i have used SEi parts for years and i can say their parts hold up as well as OEM
dont forget to get the lock nut and crush washer.




 

TomB985

Petty Officer 1st Class
Joined
Apr 4, 2011
Messages
213
the 2 types of yokes can be identified by the color of the yoke black or grey.

#9864281A 2UNIVERSAL JOINT (1 required per assembly) (Black) GKN Assembly
#10853635YOKE, Gear End (1 required per assembly) (Gray) Meritor Assembly
i have used SEi parts for years and i can say their parts hold up as well as OEM
dont forget to get the lock nut and crush washer.





This is helpful, thank you!
 
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