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Grinding noise 96 Passat



 
 
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  #1 (permalink)  
Old January 31st 06, 05:44 PM posted to uk.rec.cars.vw.watercooled
Phil L
external usenet poster
 
Posts: 19
Default Grinding noise 96 Passat

I can't get to the bottom of this at all, my passenger side front wheel is
screeching and grinding, especially when I turn right (away from it) also,
while I'm going along it's making a horrid screech, almost like rubber on
metal but a slight right bend in the road makes it ten times louder, even
rolling (with the clutch depressed) it can be heard.
When jacked up the wheel can be spun with no sound, I've checked the brake
pads, anti-squeal shims and there are no stones or other bits present near
any moving parts (my initial thoughts were that a stone had become wedged
somewhere) the tyre isn't catching on anything.
The wheel bearing is OK along with the CV joint and boot, trackrod ends and
other bearings and joints local to the wheel, the only movement (jacked up)
is the wheel can be lifted slightly (15mm) and the tops of the suspension
mechanism under the bonnet moves up when this is done, is this normal? -
both sides are the same but only one side makes a noise, the supension seems
ok, plenty of bounce etc, but I can't say I've noticed that the suspension
tops have been sticking up like this before.

Anyone any ideas?

--
If God had intended us to drink beer, He would have given us stomachs.


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  #2 (permalink)  
Old January 31st 06, 11:41 PM posted to uk.rec.cars.vw.watercooled
Jon B
external usenet poster
 
Posts: 341
Default Grinding noise 96 Passat

Phil L wrote:

I can't get to the bottom of this at all, my passenger side front wheel is
screeching and grinding, especially when I turn right (away from it) also,
while I'm going along it's making a horrid screech, almost like rubber on
metal but a slight right bend in the road makes it ten times louder, even
rolling (with the clutch depressed) it can be heard.
When jacked up the wheel can be spun with no sound, I've checked the brake
pads, anti-squeal shims and there are no stones or other bits present near
any moving parts (my initial thoughts were that a stone had become wedged
somewhere) the tyre isn't catching on anything.
The wheel bearing is OK along with the CV joint and boot, trackrod ends and
other bearings and joints local to the wheel, the only movement (jacked up)
is the wheel can be lifted slightly (15mm) and the tops of the suspension
mechanism under the bonnet moves up when this is done, is this normal? -
both sides are the same but only one side makes a noise, the supension seems
ok, plenty of bounce etc, but I can't say I've noticed that the suspension
tops have been sticking up like this before.

Anyone any ideas?


Are you positive the wheel bearings are fine? All the symptoms point at
wheel bearing, especially as it is getting worse as you are going round
a corner and putting extra load on it.

I know on my golf the front wheel bearing even when totally shot felt
solid and passed the in the air tests. Tightened up everything felt
fine, but once you'd slackened everything up removed the hub you could
see and feel how shot the wheel bearing was.
--
Jon B
real email to usenet at jonbradbury dot com
  #3 (permalink)  
Old February 1st 06, 11:14 AM posted to uk.rec.cars.vw.watercooled
draugaz@iname.com
external usenet poster
 
Posts: 54
Default Grinding noise 96 Passat


Jon B wrote:

Are you positive the wheel bearings are fine? All the symptoms point at
wheel bearing, especially as it is getting worse as you are going round
a corner and putting extra load on it.

I know on my golf the front wheel bearing even when totally shot felt
solid and passed the in the air tests. Tightened up everything felt
fine, but once you'd slackened everything up removed the hub you could
see and feel how shot the wheel bearing was.


Yup, I would agree. I had very similar "problem" on my Vento. It would
run perfectly fine and quiet when going straight, at any speed you
like. But in the long and flat curves there were some strange grinding
noises. It was absolutely impossible to tell is it comming from left or
right, or maybe even from behind.

The bearings seemed to look OK and the "problem" persisted for many
tenths of thounsands of miles without going any worse, which was very
strange, as the bearing failure tends to develop itself further rather
quickly.

So, eventually I had enough of this, and after checking everything
around many times, I decided "it just can't be anything else than
bearings, except it is something in gearbox" and went replacing the
front wheel bearings just to be sure.

One of them had a slight play which was barely noticeable in the
assembled state, but apparently was enough for the brake disc to hit
the pads. The new set of bearings solved the problem.

  #4 (permalink)  
Old February 1st 06, 12:36 PM posted to uk.rec.cars.vw.watercooled
Tod
external usenet poster
 
Posts: 66
Default Grinding noise 96 Passat


"Phil L" wrote in message
. uk...
I can't get to the bottom of this at all, my passenger side front wheel is
screeching and grinding, especially when I turn right (away from it) also,
while I'm going along it's making a horrid screech, almost like rubber on
metal but a slight right bend in the road makes it ten times louder, even
rolling (with the clutch depressed) it can be heard.
When jacked up the wheel can be spun with no sound, I've checked the brake
pads, anti-squeal shims and there are no stones or other bits present near
any moving parts (my initial thoughts were that a stone had become wedged
somewhere) the tyre isn't catching on anything.
The wheel bearing is OK along with the CV joint and boot, trackrod ends
and other bearings and joints local to the wheel, the only movement
(jacked up) is the wheel can be lifted slightly (15mm) and the tops of the
suspension mechanism under the bonnet moves up when this is done, is this
normal? - both sides are the same but only one side makes a noise, the
supension seems ok, plenty of bounce etc, but I can't say I've noticed
that the suspension tops have been sticking up like this before.

Anyone any ideas?

--
If God had intended us to drink beer, He would have given us stomachs.

Has some part of the mud guard, inside the wheel arch, come loose and is
hanging down a bit?
Tod


  #5 (permalink)  
Old February 2nd 06, 07:52 PM posted to uk.rec.cars.vw.watercooled
News.individual.net
external usenet poster
 
Posts: 5
Default Grinding noise 96 Passat

The cv joint.

"Phil L" wrote in message
. uk...
I can't get to the bottom of this at all, my passenger side front wheel is
screeching and grinding, especially when I turn right (away from it) also,
while I'm going along it's making a horrid screech, almost like rubber on
metal but a slight right bend in the road makes it ten times louder, even
rolling (with the clutch depressed) it can be heard.
When jacked up the wheel can be spun with no sound, I've checked the brake
pads, anti-squeal shims and there are no stones or other bits present near
any moving parts (my initial thoughts were that a stone had become wedged
somewhere) the tyre isn't catching on anything.
The wheel bearing is OK along with the CV joint and boot, trackrod ends
and other bearings and joints local to the wheel, the only movement
(jacked up) is the wheel can be lifted slightly (15mm) and the tops of the
suspension mechanism under the bonnet moves up when this is done, is this
normal? - both sides are the same but only one side makes a noise, the
supension seems ok, plenty of bounce etc, but I can't say I've noticed
that the suspension tops have been sticking up like this before.

Anyone any ideas?

--
If God had intended us to drink beer, He would have given us stomachs.




  #6 (permalink)  
Old February 5th 06, 12:15 AM posted to uk.rec.cars.vw.watercooled
Warder54
external usenet poster
 
Posts: 4
Default Grinding noise 96 Passat

Phil L wrote:
I can't get to the bottom of this at all, my passenger side front wheel is
screeching and grinding, especially when I turn right (away from it) also,
while I'm going along it's making a horrid screech, almost like rubber on
metal but a slight right bend in the road makes it ten times louder, even
rolling (with the clutch depressed) it can be heard.
When jacked up the wheel can be spun with no sound, I've checked the brake
pads, anti-squeal shims and there are no stones or other bits present near
any moving parts (my initial thoughts were that a stone had become wedged
somewhere) the tyre isn't catching on anything.
The wheel bearing is OK along with the CV joint and boot, trackrod ends and
other bearings and joints local to the wheel, the only movement (jacked up)
is the wheel can be lifted slightly (15mm) and the tops of the suspension
mechanism under the bonnet moves up when this is done, is this normal? -
both sides are the same but only one side makes a noise, the supension seems
ok, plenty of bounce etc, but I can't say I've noticed that the suspension
tops have been sticking up like this before.

Anyone any ideas?

Hi, just had similar problem fixed (noise on turning - sensation of a
slight "wander" on straights)only time any play could be felt was when
jacked up as in your case.
Got the front Strut Cups replace on both sides plus tracking and that
fixed it fine.
By the way my front tires were worn on inner AND outer edges - which
gave the mechanic a clue where to check.

good luck
  #7 (permalink)  
Old February 6th 06, 12:57 PM posted to uk.rec.cars.vw.watercooled
Phil L
external usenet poster
 
Posts: 19
Default Grinding noise 96 Passat

Phil L wrote:

Cheers everyone, it *was* a wheel bearing so I've changed it and
everything's running smoothly again, last time I did a wheel bearing was on
an '81 Metro and it cost less than a tenner, this set me back £35!!!...the
good news though is that I took the entire hub off and my mate at the local
garage put it into the hydaulic press and removed the old bearing and pushed
the new one in at the same time, he didn't want anything so I stuffed a
fiver in his top pocket - it saved me many hours with a large hammer and the
possbile (probable?) destruction of thirty-five quids worth of new bearing.


 




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