diagnosis needed

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lhd
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diagnosis needed

Post by lhd »

Whilst adjusting the rear brakes I noticed that when turning the wheel by hand the driveshaft seems to move towards the gearbox once on every turn.
This was very easy to see at the gearbox front mount as it moves too and throw on rotation in the same spot, it actually moves the whole box over about 3 to five ml. The other side is fine. :?
Any ideas?
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Re: diagnosis needed

Post by dugwiththevwbug »

could be the cv joint on its way is there any noise when driving? :ok
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Re: diagnosis needed

Post by lhd »

dugwiththevwbug wrote:could be the cv joint on its way is there any noise when driving? :ok
No not at all but then its a diesel. :lol:
To be honest if I hadn't been looking where I was looking I wouldn't have even known. :?
Rob.

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Re: diagnosis needed

Post by Fritz »

Rob, don't try to fix summat that isn't broken.....

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Re: diagnosis needed

Post by Aidan »

yes carry on let the gearbox mount get shagged and introduce some bad vibes into the van and then get stuck on the hard shoulder for a couple of hours when the cv joint breaks up :idea

ffs Fritz just let him service the driveshaft and see what the problem is, if it needs a new cv that's pretty cheap and if it just needs some tlc and molygrease then that's well cheap but peace of mind is priceless

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Re: diagnosis needed

Post by ghost123uk »

I wonder if a slightly bent drive shaft could also cause those symptoms ?
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lhd
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Re: diagnosis needed

Post by lhd »

So it looks like a remove and inspect job.
Thanks to all that that answered. :ok
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Re: diagnosis needed

Post by lhd »

Has anyone got any tips on how to know which end is the shagged one?
knowing my luck I will end up changing the wrong one. :oops:
Rob.

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Re: diagnosis needed

Post by 72BUG »

lhd wrote:Has anyone got any tips on how to know which end is the shagged one?
knowing my luck I will end up changing the wrong one. :oops:
Rob.
Rob I would start with the gearbox end just because it's easiest to get to. Strip it down and inspect it. If all looks ok give it a good greasing and reassemble then see if it's still doing it. If so have a look at t'other end.

Mine was making a horrible banging noise and I thought the cv joint was shot. When I stripped it down the joint was fine but the old grease had gone like putty. Gave it a good clean and greasing and it's been fine ever since. :ok
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Re: diagnosis needed

Post by toomanytoys »

Drop the wholw shaft, you'll never clean and regrease the inner very easily and likely you'd have to drop the outer in any case..

pull the boots away from joint and down the shaft, clean them up and look where the balls run.. any pitting and major wear lines will be clear, on either the inner or outer component of each joint.. pitted or worn cv's should be replaced..

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Re: diagnosis needed

Post by CovKid »

In my experience, its not often a CV joint actually becomes totally beyond repair. Even the most clunky ones go on to give many years of service when repacked with fresh moly grease, and plenty of it. Its also the top most unpopular job and you need a box full of latex gloves so you can keep changing them to keep your hands clean. Recently fitted spline bolts on mine and an extra dose of grease and they've been silent ever since.
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Re: diagnosis needed

Post by lhd »

Its all adding up now.......
As the gear box is shifting 5mm on every rotation it could explain my problems in setting up the linkage, then add to that the selector seal blowing. :idea:
Rob.

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