Noisy wheel bearing (I think) but how to tell which?

G

Guest

Guest
Ladies and Gents
I noticed yesterday that rumbling noise you get when a bearing is going.
It's proportional to road speed, and seems not to be affected by power
on / power off, so I'm hoping it is just a wheel bearing. But it is
fiendishly hard to tell where the noise is coming from.
I *think* it is the front left, and when I jacked it up to test play at
the wheel rim there was a teeny amount - perhaps a mm at the wheel outer
diameter - so that's my probable culprit, but I wish I could be more
sure.
The truck is due for a service and MoT anyway, so I mentioned it to the
garage which produced the indrawn breath and "it's hard to tell which
wheel on a full-time 4x4 because you can't spin them freely" response.
So are there any clever methods for telling which wheel it is that we
yokels here in Devon don't know about?
Christopher Bell
Devon, UK
1996 1HD-FT
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Morning Christopher,
Jacking each corner up and holding the wheel at top and bottom and then
trying to push and pull the wheel will let you know if there is any
looseness in the bearings, however it won't pin point which bearing has
deteriorated to the point of it causing a rumbling noise.
What you need to do is to spin the wheels whilst they are off the
ground - if the bearings are that worn you should be able to feel or
hear the rumbling noise from the hub.
Loose wheel bearings on the rear wheels are harder to pinpoint and
usually you are best to remove the wheels and brake calliper and then
try moving the hub back and forth - either that or remove the halfshaft
and then see if there is any bearing wobble when you hold the wheel
from top and bottom.
--
Regards,
Julian Voelcker
0845 508 6863
Ledbury, Herefordshire. UK
1994 HDJ80, 2.5" OME Lift and a few goodies.
 
G

Guest

Guest
Julian
Thanks, I'll pass this on.
I don't see why they can't spin a wheel anyway, since if they lift a
complete axle off the ground the other one will just turn in the
opposite direction.
Christopher Bell
|
| Morning Christopher,
|
| Jacking each corner up and holding the wheel at top and bottom and
then
| trying to push and pull the wheel will let you know if there is any
| looseness in the bearings, however it won't pin point which bearing
has
| deteriorated to the point of it causing a rumbling noise.
|
| What you need to do is to spin the wheels whilst they are off the
| ground - if the bearings are that worn you should be able to feel or
| hear the rumbling noise from the hub.
|
| Loose wheel bearings on the rear wheels are harder to pinpoint and
| usually you are best to remove the wheels and brake calliper and then
| try moving the hub back and forth - either that or remove the
halfshaft
| and then see if there is any bearing wobble when you hold the wheel
| from top and bottom.
____________________________________________________________
Electronic mail messages entering and leaving Arup business
systems are scanned for acceptability of content and viruses
--
European Land Cruiser Owners Mailing List
Further Info: http://www.landcruisers.info/
 
G

Guest

Guest
Fwd Noisy wheel bearing (I think) but how to tell which?

Hi Christopher
I had the same problem with my 100 series, and because I left it a
while the outer bearing spun on the hub, wearing that down a few
thou. You can often regrease and retighten as these are tapered
bearings, so start with the side that feels to have the most play...
if you do need to replace the bearings, either try forum member Ian
Rubie on the Toyota Landcruiser UK forumn (tlocuk.co.uk) - Really
well priced genuine Toyota parts or simplybearings.co.uk (cheap but
probably inferior). You'll also need a 54mm deep box spanner.
Regards
Nathan
01536 500314
07702 118910
[Email address removed]
Begin forwarded message:
> From: "Christopher Bell" <[Email address removed]>
> Date: 28 September 2009 12:00:38 BST
> To: <[Email address removed]>
> Subject: [ELCO] Noisy wheel bearing (I think) but how to tell which?
> Reply-To: [Email address removed]
>
> Ladies and Gents
>
> I noticed yesterday that rumbling noise you get when a bearing is
> going.
>
> It's proportional to road speed, and seems not to be affected by power
> on / power off, so I'm hoping it is just a wheel bearing. But it is
> fiendishly hard to tell where the noise is coming from.
>
> I *think* it is the front left, and when I jacked it up to test play
> at
> the wheel rim there was a teeny amount - perhaps a mm at the wheel
> outer
> diameter - so that's my probable culprit, but I wish I could be more
> sure.
>
> The truck is due for a service and MoT anyway, so I mentioned it to
> the
> garage which produced the indrawn breath and "it's hard to tell which
> wheel on a full-time 4x4 because you can't spin them freely" response.
>
> So are there any clever methods for telling which wheel it is that we
> yokels here in Devon don't know about?
>
> Christopher Bell
> Devon, UK
> 1996 1HD-FT
> ____________________________________________________________
> Electronic mail messages entering and leaving Arup business
> systems are scanned for acceptability of content and viruses
>
> --
> European Land Cruiser Owners Mailing List
> Further Info: http://www.landcruisers.info/
 
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G

Guest

Guest
Nathan
Thanks for the diagnostic advice.
I had exactly that experience about 6 years ago - noise like a shell passing at certain speeds, plus chewed up stub axle - not anxious to repeat it! That was the front left wheel.
The noise isn't too bad at the moment, and actually got a bit better during a return journey to Bristol yesterday so maybe some grease worked its way in somewhere. I don't plan any serious journeys between now and when it is booked in, and I'll definitely replace the bearing (cheap) to avoid killing the stub axle (expensive).
CB
Hi Christopher
I had the same problem with my 100 series, and because I left it a while the outer bearing spun on the hub, wearing that down a few thou. =A0You can often regrease and retighten as these are tapered bearings, so start with the side that feels to have the most play... if you do need to replace the bearings, either try forum member Ian Rubie on the =A0Toyota Landcruiser UK forumn (tlocuk.co.uk) - Really well priced genuine Toyota parts or simplybearings.co.uk (cheap but probably inferior). =A0You'll also need a 54mm deep box spanner.
Regards
Nathan
____________________________________________________________
Electronic mail messages entering and leaving Arup business
systems are scanned for acceptability of content and viruses
--
European Land Cruiser Owners Mailing List
Further Info: http://www.landcruisers.info/
 
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