Replace u-joints w/out removing bearing retainer?

Augoose

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I'm reading the manual on how to replace the u-joints for my Alpha 1, Gen 1. I have also done some searching and found a couple of videos. Although I never want to deviate from a service manual, after looking at a still image from one of the videos, is appears that the u-joints can be removed without removing the bearing retainer? Is there enough room to get a u-joint press in there? From the picture, it looks like it.

Commence with the flogging........
 

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Ohioriver

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Re: Replace u-joints w/out removing bearing retainer?

I will wait for an answer with you, I got my u-joints today for my alpha 1 gen 1 and I don't have the spanner wrench if I need it.
 

EddiePetty

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Re: Replace u-joints w/out removing bearing retainer?

...in a previous, similar posting (which I cannot find at the moment)......several contributors have 'clearanced' the prongs of the spanner nut to allow for r&r of the u-joints with no harmful effects.
 

Ohioriver

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Re: Replace u-joints w/out removing bearing retainer?

Thank you Eddie, I also thought it was doable with out the spanner wrench, guess i'll pull that drive off tomorrow night and have at it.
 

Augoose

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Re: Replace u-joints w/out removing bearing retainer?

Awesome. Thanks guys
 

Ohioriver

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Re: Replace u-joints w/out removing bearing retainer?

Drive is off and u-joints out, po had trimmed the nut already, so it was no big deal to do. But it dosen't look like it would take much time to trim the nut down with a moto tool.
 

natemoore

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Re: Replace u-joints w/out removing bearing retainer?

I replaced my u-joints with a bench vise and some sockets of the appropriate sizes. I think it's doable based on the picture, if you are also removing the short yoke.
 

cr2k

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Mar 19, 2009
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Re: Replace u-joints w/out removing bearing retainer?

If you are just removing the the big ring nut or even the shaft and do not change any of the bearings or races and use the same shims you will be OK.

It is when you change bearings (not U-Joint bearings) that you need to reset shims.
 

Augoose

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Re: Replace u-joints w/out removing bearing retainer?

Thanks all. I ended up leaving the retainer nut on and grinding one of the edges just a bit. Somehow I ended up bending the yoke - not good. I must have caught an edge of the yoke with the c-clamp and squeezed it in. I bent it back out by hand and eyeballed the alignment. Ended up filing the inside of the yoke with a metal file and repeated test fits with a old bearing cap until the bearing cap would tap in gently with a hammer. The c-clip should hold it I hope.

I used the c-clamp to set the first couple of bearings and it didn't do a good job at all. I ended up breaking some of the pins inside the bearing, so tomorrow morning I have to go and get a new u-joint. I used a socket and gentle taps with the hammer to seat all 4 of the other bearing caps on the 2nd u-joint and that was much easier and seemingly less damaging to the components. So much for trying to use the right tool for the job.....

All in all, this was my problem I think. One of the u-joints was ok but the other was a dustbowl inside and would hardly turn. Once apart, you could see the roller marks made by the pins.

Tomorrow I'll go back to the auto parts store for a 2nd u-joint.

One question - when I go to put the lower unit back on, how should I orient the end of the shift cable? When I pulled the lower unit off, it seemed to just tip over to the side, so I want to be sure I put it all back together correctly. Anyone happen to have a pic of the proper orientation?

Thanks all
 

natemoore

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Re: Replace u-joints w/out removing bearing retainer?

I misunderstood your first post, I think. I thought you were asking if you could replace the u-joints with the gimbal bearing in place, which was shown prominently in the picture, but you said bearing retainer, so you the meant bearing retainer nut. I guess I had to sleep on it.:)

Every u-joint I've ever replaced (boat and automotive) was a press fit. I don't think I could hammer it in if my life depended on it. I've got some concerns about the u-joint bearing cap now being loose enough to tap into the yoke with a hammer. Then you've got the bent joke. I'd worry about pre-mature bearing failure due to the alignment being off. The yoke is an expensive part, but I would seriously consider replacing it, rather than having a yoke snap and leave you stranded, which happened to my neighbor this summer, but for different unknown reasons.

If you've abandoned the c-clamp method, then remove the retainer nut, take all the gears, seals, and shims off the short yoke, keeping everything in order, then try the bench vice & sockets method. You need one socket with an inside diameter slightly larger than the u-joint bearing cap, and another socket smaller than the bearing cap. Sandwich the yoke in the vice with the large socket on one side and the small socket on the other side and tighten the vice until the bearing cap pops out on the outside of the yoke. Then flip the yoke around and reinstall in the vice such that the large and small sockets are on the opposite side that they were on during the first step. Now tighten the vice until the other bearing cap pops out on the inside of the yoke. It takes a couple of adroit hands to get everything lined up, but once it's aligned properly, you've got tons of leverage to pop out even the most stubborn bearing cap.

Installation is simply the reverse of this.

Good luck.
 

Augoose

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Re: Replace u-joints w/out removing bearing retainer?

Thanks all for the help. The u-joints are in and feel nice and smooth in all direction. Reinstalled the outdrive, put on the muffs for just a second to ensure it goes in and out of gear before an actual lake test run - went in and out correctly.

Heading to the lake here in a bit. Wish me luck.
 

Augoose

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Re: Replace u-joints w/out removing bearing retainer?

passed the test. all is well.
 
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