Date: Mon, 1 Dec 2008 18:57:09 -0800
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Rear wheel bearings
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reply-type=response
fwiw, I've been fooled on an FWD car before too, one time, long ago.
but 'normally' ...........if it's noisier/rougher going left, and not there
going right, especially on a 2WD rear -drive vehicle........
it's the left side acting up.
as for inner or outer race..........
I like to check bearing races for wear or roughness two ways .........one is
clean them with carb cleaner so there's no oil or grease.........that
amplifies the roughness when you turn them by hand, in your hand.
The other way is examine the bearing races with a microscope- they often
look like the surface of the moon.
I'll second that 'check the axle nut'.
the torque on those is way up there. I stand on the end of a 4 foot cheater
bar ........
And holding the wheel hub from turning...........that can be tricky. I have
a very solid wheel hub holding tool I made just for that.
If you're using the 'friend standing on the brakes method' ..........or
chocking the wheel with parking brake on, it may not get tight enough.
----- Original Message -----
From: "aatransaxle" <daryl@AATRANSAXLE.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, December 01, 2008 6:29 PM
Subject: Re: Rear wheel bearings
> Betting the axle nut was too loose after the repack/repl on that
> side..Them
> puppies have to be double tight and if your unsure how you did..re-torqued
> after a 100 miles to be sure. Thats the only time I have ever seen new
> bearings go bad too soon.
> No way to diagnose for sure without removal, but when doing a left turn,
> the
> right side is the one thats loaded and thats the side thats usually
> bad...Just because it makes noise on a left turn doesn't mean its a left
> brng bad.
> But of course I have been fooled in the past by such things on front wheel
> drive rigs..ymmv
> Daryl of AA Transaxle
> (425) 788-4070
> aatransaxle.com
> 86 Syncro Westy
> Zetec in the trunk
> ----- Original Message -----
> From: "Dave Yates" <transparu@GMAIL.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Monday, December 01, 2008 6:01 PM
> Subject: Rear wheel bearings
>
>
>> As preventative maintenance, I recently (about 5000km ago) replaced
>> all wheel bearings (front and back) on my Vanagon. I used
>> German-branded parts. I did the job carefully, packing with the
>> correct grease and properly tensioning etc.
>>
>> The left rear has just started making a dreadful rumbling/drumming
>> noise which I can only put down to a collapsed bearing - amazing
>> considering I had 26 years without this ever happening.
>>
>> The noise/vibration is worst around 60kph. I can feel it in the
>> brakes (foot and hand). When I do a left turn/curve it is there but
>> when I do a right turn it disappears.
>>
>> Has anyone any suggestions of how to try to work out if it is inner or
>> outer bearing before I pull the confounded thing apart again?
>>
>> Thanks folks.
>>
>> Dave
>>
>> (Oh, replaced the hex-head CV joint bolts with start-bolts and found
>> it much easier to do up the CV joints when I installed the bearings.)
>>
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