Hard right = left rear wheel knocking.?? Log Out | Topics | Search
Moderators | Register | Edit Profile

DiscoWeb Bulletin Board » Message Archives » 2004 Archives - Discovery Technical » Archive through February 25, 2004 » Hard right = left rear wheel knocking.?? « Previous Next »

Author Message
 

Jon Dyer (Jmd)
New Member
Username: Jmd

Post Number: 4
Registered: 11-2003
Posted on Monday, February 23, 2004 - 07:04 am:   Edit Post Delete Post Print Post

my new work run is taking me through a hard right uphill turn. During this turn I've noticed a slight knocking sound coming from the left rear wheel. It's not that loud but is noticeable and doesn't really occur at any other time while driving. I suspect that this will have to go to my mechanic but if it is a home mechanic fix I'll give it a go.

Cheers.
 

thom mathie (Muskyman)
Senior Member
Username: Muskyman

Post Number: 618
Registered: 11-2002
Posted on Monday, February 23, 2004 - 08:38 am:   Edit Post Delete Post Print Post

sounds like a wheel bearing in early stages of going bad.

jack up that corner and see if there is play in that wheel or sounds when it is spun by hand

MM
 

Dean Brown (Deanbrown3d)
Senior Member
Username: Deanbrown3d

Post Number: 1467
Registered: 02-2002
Posted on Monday, February 23, 2004 - 09:20 am:   Edit Post Delete Post Print Post

Could be a loose bushing bolt, shock bolt or any number of other fixtures that is loose also. Can you shake the truck and listen for knocking noises? Or get someone else to shake it while you take a look underneath and see if anythings moving?
 

Christopher Boese (Christopher)
Senior Member
Username: Christopher

Post Number: 296
Registered: 10-2002
Posted on Monday, February 23, 2004 - 01:48 pm:   Edit Post Delete Post Print Post

Sounds to me too like a wheel bearing. My Audi had the same symptoms, and got a new bearing under warranty.
 

Geoff 93 RRC (Geoff)
Senior Member
Username: Geoff

Post Number: 262
Registered: 11-2002
Posted on Monday, February 23, 2004 - 03:58 pm:   Edit Post Delete Post Print Post

I had a sort of knocking sound when turning right - it was the left stub axle bearing. If worn or not aligned square with the axle it allows the cv to move in an elliptical arc and contact the housing.

If this is the cause you need to pull the stub axle and drive out/in new bearing and seal. The parts are cheap. You need some kind of angled punch to drive out the old seal/bearing or a slide hammer type puller. I didn't drive the new bearing as far as possible, just slightly recessed from the brass end of the stub axle. You have to get it square or you'll have the same problem again.

About 2-3 hours first time using the manual. If you tear down to the wheel bearings you're 90% there.
 

Jon Dyer (Jmd)
New Member
Username: Jmd

Post Number: 7
Registered: 11-2003
Posted on Monday, February 23, 2004 - 05:09 pm:   Edit Post Delete Post Print Post

thanks for the feedback - as a beginner under the truck I'll start start by checking if any of the bolts are loose. Otherwise it looks like a saturday morning job.

Is there a way to know if the sound is coming from the stub axle or the wheel bearing?

Ta.
 

Geoff 93 RRC (Geoff)
Senior Member
Username: Geoff

Post Number: 264
Registered: 11-2002
Posted on Monday, February 23, 2004 - 06:18 pm:   Edit Post Delete Post Print Post

I re-read your post and you said rear. No CV on rear so disregard my previous post if certain its from rear.

The rubbing cv appears on a sharp, 90 degree turn and sounds like a kind of rythmic womp..womp...womp from the rubbing inside the housing. Its a hollow sound not a sharp knock as if a hammer on word or steel.

Topics | Last Day | Last Week | Tree View | Search | User List | Help/Instructions | Program Credits Administration