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Help Removing Cv Joints From Drive-Shaft (Pics And Pleading)


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#1 CBJ805T

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Posted 12 June 2012 - 06:15 PM

Hi All,

I've previously asked this questions in a roundabout way but I'm still struggling. I've removed the engine and stripped the the front suspension down and I'm now left with drive-shaft hanging in the front sub frame with both CV joints attached. As neither CV joint goes through the sub, I've got to remove one (or both)

How do you remove the CV joints from the drive-shaft? What separates from what and how do you do it? I don't know what the joint looks like benith the gaiter so can't work out how it separates. Pulling doesn't seem to do the trick. This is starting to frick me off now!!

Here's a pic of the drive shaft in the car.

Posted Image

Inner CV

Posted Image

and outer CV
Posted Image

can anyone give me a description of how to separate them?

thanks, Chris

#2 minidaves

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Posted 12 June 2012 - 06:25 PM

outer cv move the boot and tap the joint with a deadblow mallet job done. inner cv there is a metal like ring you can see under the boot that needs a tap with a drift and that slides off the shaft job done

#3 CBJ805T

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Posted 12 June 2012 - 07:14 PM

Thanks for the reply. For the outer, when you say "move the boot" - do you mean remove it from the joint (large od)? If so there is a metal ring holding the boot on - this doesn't have a joint, do I just prise it off?

for the inner - sorry to ask - but what do you mean by a drift? A special tool or a handy flat head screwdriver?

Chris

#4 tiger99

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Posted 12 June 2012 - 07:22 PM

The drift can just be a piece of steel rod with a flat end. Actually two flat ends, I should say, so you can whack it with a hammer. A parallel sided punch (pin punch) is one possibility, as you may have one already.

#5 bmcecosse

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Posted 12 June 2012 - 07:27 PM

Yes - cut the securing strap off - you will be fitting new boots/straps anyway i presume...... If not - leave well alone. Why do you want them off the subby? And it takes more than a 'tap' to remove the CV from the shaft - some pretty serious blows in my experience... A 'drift' is a brass bar that you place against the part you want to HIT - and then you HIT the other end of the bar. Thus directing the force exactly where you want it without damaging other parts - eg like the fragile CV cage !!

Edited by bmcecosse, 12 June 2012 - 07:27 PM.


#6 CBJ805T

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Posted 12 June 2012 - 08:41 PM

Thanks for tips, I'll have another go tomorrow. I,ll be replacing the boots so i'll cut the straps. CVs are coming off as the cars having a full resto and the front sub is very crusty

#7 CHUNKY365

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Posted 12 June 2012 - 10:09 PM

Its easier than that!

To remove the shafts from the subframe:-

Cut the cable tie holding the inner CV rubber boot to the pot joint.

The pot joint should then just slide off.

Then pull the whole kit and caboodle out of the subframe!

The outer CV joints are easier to remove by using a vice to hold the drive shaft.

It's quite rare to have to change the inners.

#8 bmcecosse

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Posted 12 June 2012 - 11:13 PM

Taking the inner pot joints apart is a messy business....and don't lose any of the balls..........

#9 tiger99

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Posted 13 June 2012 - 10:35 AM

You ideally need to ensure that each ball goes back in the same position in the inner, outer and cage, or you will accelerate wear of the pot joint, which is why it is far better to take the joint off the shaft than to take it apart. (In general, all parts that have been running together should stay as they were, for example, same valve, rocker, push rod and tappet, in the same place, when you strip an engine, as just about everyone probably does as a matter of routine. But it applies equally well to CVs and pot joints, where each ball polishes its mating faces to an exact fit.) Also, you will need a tube of the very special grease for reassembly.

Better to drift off one or other of the joints. I always used a steel drift carefully, but as stated, brass might be better. Or you can use tool 18G 1243, if you can find one. See older Rover manuals, or the Haynes manual for a picture of this tool, which could probably be made at home. The most recent Rover manual shows the pot joint inner being drifted off with a tool which seems to resemble a screwdriver!




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