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Old 11-15-2009, 08:13 PM   #1 (permalink)
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Default Bad Lobro Joint?(video embedded)

So after an "ordeal" of getting my car up and running 8 months after my clutch went out I decided in addition to putting in a rebuilt trans to do the carrier bearings- simple enough??? NOT!!!!

In fact, the clutch and trans are fine, the pilot shaft is not. First off, the lobro joint did not come apart easily(the thin metal cap came off, but the rear cap towards the differential did not) so I had to remove the ball bearings to get to the bolt for the carrier bearing. When I put them back in I did not know where they came from(manual says to put them back exactly as they came out), also to take apart the bearings the manual states to use a puller instead of snap ring pliers so I bent the snap ring and bent it back as good as I could before re-assembling the joint. Then I went to the local dealer to get a new ring only to find that I could not disassemble the joint again so I left it thinking it would be ok.

Well this is the result:



You can see at :08 and :15 that the pilot shaft is not flexing at the lobro joint, most likely either the bearings are not seated properly or the snap ring came off, either way, on the road this occurs at about 20mph and sounds like the pilot shaft is going to pop through the floor boards.

Thus- I most likely need a new lobro joint, however, does anyone have any tips for disassembling this one to see if I can try once more to re-assemble it properly?

I found a couple of pilot shafts on here, but the one I got a response on won't be ready to ship until next weekend and I need this fixed ASAP as I am driving the bike(see sig) to work until this gets fixed, not the best thing in Nov in Chicago
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Old 12-08-2009, 12:54 AM   #2 (permalink)
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Default Re: Bad Lobro Joint?(video embedded)

Get the manual, i was using the guide that one the guys here wrote but it didn say anything about the lobro joint so i had to look a t the manual it tell s you how to take the thing apart correctly, mainly you gotta put the joint on a vise and hammer with a flat screw driver on the outside to take the rubber boot metal part and same for the opposite side then use a puller to take the whole lobro joint out it won't come out just by hand.
Did you get a new lobro join kit? i got one and it comes with grease, boot , seals, and a new ring clip, i got the ring clip out just with a pair of long nose pliers, took me a couple of tries but it came off perfectly no damage it i ddin't had one on the kit i would had use the same one, what did you use to take it off ? seem like you kinda bend it.
Did you put all the grease on th joint? this is just like the joints on the cv axles very similar and you gotta pack lots of grease there.
Did you change the carrier bearings? they seem to be moving too much also or could be for the bad vibrations.

I guess you have no other way but to take that lobro appart again don't drive it like that it really scares me, like i said check the manual for proper dissasembly and torque , check the tranfer case and rear diff too but that looks that it's coming from the joint and let us know.
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Old 12-08-2009, 01:12 AM   #3 (permalink)
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Default Re: Bad Lobro Joint?(video embedded)

I just checked the manual and you are right it doesn't say anything about the snap ring but it does show it on the picture diagram.
So you just pull the assembly without taking the ring out and damage it right ?
the assembly stays there very tight that's why you need a pulley to take it off but also the power/movement on the propeller shaft is great so if the ring was bended it may be weak and came loose.
Gl mate and let us know
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