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Weird tapping sound?
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Author:  EST-071 [ Tue Mar 07, 2006 7:24 am ]
Post subject:  Weird tapping sound?
I have a problem which has me stumped :cry: . When I go over 80km/h there is a tapping sound ( like a stone in the tyre ) coming from the drivers front end some where. It is speed related no rev related as it also does it in neutral ( rolling down a hill ). It does not matter if you are turning or not it is still there. I thought it may have been an outer CV but they do not make any noise at slow speed going lock to lock.
I have had the front hubs pulled apart twice now and still can not find a cause, I am now thinking it could be the inner pot joint or diff.
Sorry for the long post but any help would be great.

Pete
Author:  GAT51 [ Tue Mar 07, 2006 8:06 am ]
Post subject: 
Had similar problem a few years ago. Turned out to be a tooth in the diff that had chipped. Eventually the crown wheel picked up the chip and broke off two teeth. Result new crown wheel and pinion and engine out.
Author:  CRU17Y [ Tue Mar 07, 2006 8:19 am ]
Post subject: 
I think i am having the same issue but mine appears to be happening on the passengers side front.

ohh damn it. this is becoming costly.
Author:  EST-071 [ Tue Mar 07, 2006 9:50 am ]
Post subject: 
GAT51 wrote:
Had similar problem a few years ago. Turned out to be a tooth in the diff that had chipped. Eventually the crown wheel picked up the chip and broke off two teeth. Result new crown wheel and pinion and engine out.

I hope this is not it. :cry:
Pete
Author:  CRU17Y [ Tue Mar 07, 2006 10:21 am ]
Post subject: 
deluxe_68 wrote:
I hope this is not it. :cry:
Pete


I hear you buddy
Author:  EST-071 [ Tue Mar 07, 2006 4:22 pm ]
Post subject: 
GAT51 wrote:
Had similar problem a few years ago. Turned out to be a tooth in the diff that had chipped. Eventually the crown wheel picked up the chip and broke off two teeth. Result new crown wheel and pinion and engine out.

If it was this, would I be able to tell without pulling it apart?
Also wouldn't it make the sound at all speeds not just over 80km/h?
Pete
Author:  EST-071 [ Wed Mar 08, 2006 7:14 am ]
Post subject: 
Any body got any ideas?
Pete
Author:  Maxi23 [ Wed Mar 08, 2006 7:24 am ]
Post subject: 
Check your uni joints.

I had a tapping when a U-Bolt nut came lose and the metal started hitting the the gearbox casing....it wore away a nice groove into my gearbox casing.
Author:  EST-071 [ Wed Mar 08, 2006 10:01 am ]
Post subject: 
I have got pot joints not uni joints.
Pete
Author:  GAT51 [ Wed Mar 08, 2006 11:55 am ]
Post subject: 
If it was this, would I be able to tell without pulling it apart?
Also wouldn't it make the sound at all speeds not just over 80km/h?
Pete

Mine cut in and out around 50K, no idea why - but possibly to do with the weight on the gear. Try backing off and then applying the power again. When I did this the noise went away for an instant. I only identified the problem when it all went bang!!
Author:  EST-071 [ Wed Mar 08, 2006 6:09 pm ]
Post subject: 
I think I isolated the noise, swapped both front wheels over and the noise followed. So it is either the tyre or the rim. At a quick glance they both look fine but will wait and clean the rim up and have a ggod look at it.
Cheers Pete
Author:  Morris 1100 [ Wed Mar 08, 2006 6:22 pm ]
Post subject: 
Did you check the tread for a nail or a stone?
Are the tyres old? If a tread is starting to lift it will make a noise when you go faster. Check for cracks and splits and bumps.
Author:  EST-071 [ Wed Mar 08, 2006 7:05 pm ]
Post subject: 
Yeh looked for a stone or nail but none there, the tyres are about 4 years old and it does look a bit funny in one spot, like it has been really hot.
Pete
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