CV joint gone bad? - Defender Source
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Old December 4th, 2005, 02:17 AM
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CV joint gone bad?

I seriously am starting to think it's time to redo the CV joint on one side, but won't know till I tear it apart to see. If the wife's car gets back from the shop Monday like expected, I'll tear it down ASAP. But I figured I'd get some input first before I start stripping things down. My guess right now is the cage is probably shattered.

Symptoms:
1. Serious endplay, When I have the drive flange off, I can push the shaft in about 1/2"
2. Leaking fluid between the driveshaft and spindle.
3. I think that the noises I'm hearing are coming from that area. Really bad clunking, and now a kind of grinding noise occasionally.

Also, if you get a CV joint kit, what the heck does that include? Is it the whole assembly including the cage, star, balls and the short outer shaft?

-Hans
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  #2  
Old December 4th, 2005, 07:43 AM
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Does the noise get worse on full steering lock?
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Old December 4th, 2005, 11:03 AM
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Quote:
Originally Posted by Hans
I seriously am starting to think it's time to redo the CV joint on one side, but won't know till I tear it apart to see. If the wife's car gets back from the shop Monday like expected, I'll tear it down ASAP. But I figured I'd get some input first before I start stripping things down. My guess right now is the cage is probably shattered.

Symptoms:
1. Serious endplay, When I have the drive flange off, I can push the shaft in about 1/2"
2. Leaking fluid between the driveshaft and spindle.
3. I think that the noises I'm hearing are coming from that area. Really bad clunking, and now a kind of grinding noise occasionally.

Also, if you get a CV joint kit, what the heck does that include? Is it the whole assembly including the cage, star, balls and the short outer shaft?

-Hans
1) That is the way they are designed. The circlip on the flange is the locator to prevent movement inwards, the CV bush to prevent movement outwards. With the flange off it can move around 1/2". With the drive flange on and the circlip in place there should be a set end float (0.007" IIRC) which is set by shims behind the circlip.

2) Normal. That seal typically does not work.

3) A CV will clunk at full lock with the wheel speed. Have you tried driving with the front driveshaft off?

Can't hurt to pull it apart anyway.
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Old December 4th, 2005, 01:42 PM
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The clunking is totally independant of wheel posiition from what I've seen. The other noise, not sure how to describe it, but that one is also typically only with the wheels straight and is speed dependant..... regardless of gear or RPM.

Now you've got me wondering, since the other side has much less endplay with the flange off. Definitely something different between them causing that. It's not stopping me from driving for now, but I think I'll be pulling it apart once this snow melts. Best case is nothing is wrong and I have an excuse to clean and change the swivel fluid.

-Hans
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Old December 4th, 2005, 03:03 PM
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My discovery had a strange clunking from the front end, had me baffled for a day or two, two clunks per wheel revolution, turned out to be the road wheel starting to fall off
The wheel nuts were just a tiny bit lose and the ally wheel was moving around on the flange.
Never rule out the obvious!!!!! (even if i wasn't obvious at the time!)
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Old December 4th, 2005, 04:24 PM
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No sense it being macho, I'll check the lugnuts too. Doubt it, but you never know until you look.

Though I did listen real careful today, and I could swear I heard the crunching/popping that is typical of CV joints in other cars. I'm just so used to the exposed U-joint style knuckles that most other solid axle 4wd's use, never really worked on a CV joint before.

-Hans
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