I'm having trouble getting my new U-Joint for the propshaft on my 110 back together again, I think I may have crushed the yolk together when using a press to put it together. Now the new u-joint is so stiff it won't move at all.
How should I try to widen the yolk slightly to releave the pressure on the u-joint? I am thinking I would try a little heat, it only needs a millemeter or two. I have tried a punch but it does not seemed to have done anything.
Thanks in advance, Oliver
U-Joint Replacement
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obalme
- Crank Case
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- Joined: Thu Oct 05, 2006 9:11 pm
- Location: Cobble Hill
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Bill E.
- Landy Man
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Re: U-Joint Replacement
Hi Oliver,
You may have resolved your problem already but I just wanted to advise against applying heat. The u-joint will not like it. The grease seal on each bearing cup will melt/burn up pretty quickly. It is possible that you could have distorted the yoke while using your press as you have suggested. It has been my experience that most tight u-joints are the result of allowing one or more roller bearings to find their way out of alignment and into the end of the cup during the assembly process. Disassembly and examination is the only way to confirm this. This may not be your problem but 99% of the time it has been mine.
PS a good tip for installing u-joints is to put them in the fridge an hour before beginning assembly. I find this stiffens the grease and assists in keeping the rollers from falling out of place. Of course if you live in some winter wonderland this tip might be academic :roll:
You may have resolved your problem already but I just wanted to advise against applying heat. The u-joint will not like it. The grease seal on each bearing cup will melt/burn up pretty quickly. It is possible that you could have distorted the yoke while using your press as you have suggested. It has been my experience that most tight u-joints are the result of allowing one or more roller bearings to find their way out of alignment and into the end of the cup during the assembly process. Disassembly and examination is the only way to confirm this. This may not be your problem but 99% of the time it has been mine.
PS a good tip for installing u-joints is to put them in the fridge an hour before beginning assembly. I find this stiffens the grease and assists in keeping the rollers from falling out of place. Of course if you live in some winter wonderland this tip might be academic :roll:
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ANDYD
- Defender of the World
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Re: U-Joint Replacement
Hi Oliver,
To add to what Bill has written, I often find that after installing the new cir-clips the new u-joints are quite tight. To fix this you need to gently tap the u-joint back towards the direction of the cir-clip. I find after a few taps the new u-joint will get loose and free moving.
Worth a try before working on the yoke....
Andy
To add to what Bill has written, I often find that after installing the new cir-clips the new u-joints are quite tight. To fix this you need to gently tap the u-joint back towards the direction of the cir-clip. I find after a few taps the new u-joint will get loose and free moving.
Worth a try before working on the yoke....
Andy
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obalme
- Crank Case
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- Joined: Thu Oct 05, 2006 9:11 pm
- Location: Cobble Hill
Re: U-Joint Replacement
I got it to move, but I made an expensive mistake by dropping 2 of the little pins. Now I can't find them... :x
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island dormy
- Drag Link
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Re: U-Joint Replacement
Hi Oliver
If your old U-Joint was not total trash, you may be able to use 2 of the rollers from the old one?
Victor 1962 Dormobile
If your old U-Joint was not total trash, you may be able to use 2 of the rollers from the old one?
Victor 1962 Dormobile
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obalme
- Crank Case
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- Joined: Thu Oct 05, 2006 9:11 pm
- Location: Cobble Hill
Re: U-Joint Replacement
That was the plan, but the new one was from a different company. These new pins are smaller in diameter and a little taller. What I decided to do was to use the old yolk and the different caps from another u-joint (I didn't want to use that one because it had no grease nipple). I tested that and they seem to be compatible.

