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Auto Hubs Service

Posted: 05 May 2015 07:47
by Michael
Hi Gents

So as I had some problems with my hubs a while back and went through the whole process of buying a second hand one I discovered that I replaced the wrong one. Not wanting to spend more money I decided to strip the actual "broken" one to see if it is fixable and discovered that it really only needed a service. My hub got some water in at one stage and the whole thing was full of gunk and very rusty.

So here is my post on how to strip and service a auto hub on a Y61, but I think it might be the same or similar to the Y60. The photos I used here is not of my problematic hub, but just one that I serviced for the purpose of this thread.

1. remove the hub from the wheel bearing housing by removing the 6 x 8mm allen key bolts
2. once removed you will already be able to see and feel in what condition your hub is in, on mine you could see that there are problems even before I stripped it.
hub_1-1900.jpg (135.26 KiB) Viewed 4127 times
3. To be able to strip the hub you need to remove the thin ring that is pressed into the hub. I just tightened the hub inside the vice and knocked it out with a hammer and screw driver.
remove ring with screw driver and hammer
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4. Here is how it looks with the ring removed
Ring removed
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5. now you can remove the auto locking part of the hub, it basically falls out when the ring is removed
hub_4-1900.jpg (171.77 KiB) Viewed 4127 times
6. Here is a close up photo of how the hub looks after the auto locking mechanism has been removed. This is the actual part that locks the hub when you turn the bolt to "Lock". This hub wasnt in bad shape and was still working.
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7. This is the hub housing once the mechanism has been removed
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8. Locking mechanism, quite dirty....
Dirty mechanism
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9. Now we are half way and all that is left is a bit of elbow grease and some de greaser. I use a very strong cleaning agent called "Klear 4007" and I get it from Farm City.
nice and clean
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10. Close up of the housing after it has been cleaned. If you look carefully you can see it has a bit of wear and tear on it, but nothing to worry about in my opinion.
housing close up
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11. Close up of the locking mechanism after it has been cleaned
Mechanism close up
hub_10-1900.jpg (110.81 KiB) Viewed 4127 times
12. Now you can lubricate everything and start to assemble. I used normal engine oil and will explain later why I used this insted of grease. Make sure when you put the locking mechanism back into the housing that the two little arms on the mechanism line up with the slots in the housing. my finger will point out the parts that need to allign in the next two photos. Once you put it in you can wiggle it a bit and you will feel it click into place
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hub_12-1900.jpg (140.77 KiB) Viewed 4127 times
13. Installed locking mechanism
hub_13-1900.jpg (166.92 KiB) Viewed 4127 times
14. Now you install the auto locking mechanism, make sure the copper cir-clip is on the opposite side of the high part of the locking mechanism. (hope this sentence makes sense)
hub_14-1900.jpg (156.62 KiB) Viewed 4127 times
15. Now you just install the thin "locking ring" and thats that in a hat.
hub_15-1900.jpg (132.42 KiB) Viewed 4127 times
16. Now the last thing you can do, (thanks Christo for reminding me about this) is to put a thin layer of silicone where the auto hub bolts onto the wheel bearing housing. This wil make sure that your auto hub will stay dry inside when doing deep water and mud crossings

Re: Auto Hubs Service

Posted: 05 May 2015 07:56
by Michael
So just one thing I want to mention on the re greasing/oiling the hub on assembly.

Normal wheel bearing grease is not the right thing for this job in my opinion, it is to sticky and the mechanism will not function as smoothly as it should. If you want to use grease I would suggest CV grease or graphite grease.

I have done allot of reading on the Australian forums on this subject and they recon you should use machine oil or very thin engine oil. :surprised:

I wanted to see how the oil works and will try graphite grease on the next hub service

Re: Auto Hubs Service

Posted: 05 May 2015 08:36
by Oellie
:goodpost: :thumbup:

Re: Auto Hubs Service

Posted: 05 May 2015 08:37
by ricster
Nice post Michael !!! Thanks you :thumbup: :thumbup:

Re: Auto Hubs Service

Posted: 05 May 2015 08:51
by offroadbiker
I like posts like these..... it teaches the "other" guys how to perform these tasks so when I need a service they can do it nicely for me :oldtimer: QQQ QQQ

Re: Auto Hubs Service

Posted: 05 May 2015 13:26
by jonathan
Dis great thanks Michael! Ek gaan myne (die een wat nog werk) verseker doen :salute:

Re: Auto Hubs Service

Posted: 05 May 2015 13:57
by rvanrooyen
Great post!!! Thanks

Re: Auto Hubs Service

Posted: 05 May 2015 20:25
by ChristoSlang
Lekker post, Michael!

PS: Jy het vergeet om te vertel dat mens 'n dun lagie silicone sealant moet opsit om die modder uit te hou!

Re: Auto Hubs Service

Posted: 06 May 2015 05:03
by Michael
ChristoSlang wrote:Lekker post, Michael!

PS: Jy het vergeet om te vertel dat mens 'n dun lagie silicone sealant moet opsit om die modder uit te hou!
Ah jy sien.... Baie dankie Christo ek het heeltemal daarvan vergeet. :thumbup:
Ek sal die post edit

Re: Auto Hubs Service

Posted: 06 May 2015 06:31
by gupster
Thanks Michael for the time and effort you put into the thread. I feel confident to tackle mine now as the right hand one does not always disengage properly.