[Vwdiesel] confirm or ? (fwd)

[mikitka]

I agree with Val.  Makes the most sense.

Nick

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of Val Christian
Sent: November 24, 2013 11:38 AM
To: vwdiesel at vwfans.com
Subject: Re: [Vwdiesel] confirm or ? (fwd)

>From my experience, with the information given, and none other, I have the
following probability distribution:

wheel bearing:65%
CV:33%
other: 2%

Here's my reasoning:  
 
Wheel bearings are senstive to loading, and turns, and tilted operation
where there are sideloads tend to show wheel bearing problems.

CV joints tend to be impacted by two things: rotational torque and angle of
the CV joint.  Sometimes CV joints only make noise with rotation in one
direction.

There are other things like brake backing plates, ABS sensors, etc which can
rub against rotating parts and make grinding noise.  






> 
> Wheel bearing.
> 
> Velma 82 1.9L AAZ td westy
> On Nov 23, 2013 7:00 PM, "James Hansen" <jhsg at sasktel.net> wrote:
> 
> >
> > OK, I need the collective, incredible diesel intelligence of our
combined
> > group as we are smarter and better looking than the average non diesel
> > driver.  ;^)
> >
> > ***
> > Yaaarrrrrp?
> > ***
> >
> > OK here goes, I am hearing a grinding sound coming from the front of the
> > car, I believe it is the front left because of the way it echoes off the
> > retaining walls of the highway.  It is obviously speed sensitive and
> > actually goes away at very high speeds but is definitely present at any
> > speed above idle to about 45 mph.  It is not effected by applying the
bra=
> ke
> > or the clutch BUT it does change when moving the steering wheel back and
> > forth and in full turn mode, it is extremely loud and grinding.
> >
> > ***
> > Wheel bearing.
> > Go for a drive, try to stay off the brakes to any extent, and shoot it
wi=
> th
> > your infrared temp gun.
> > ***
> >
> >  I cannot reproduce the sound with the front wheels in the air (and the
> > backs have new bearings on both sides - inner and outer)  I have been
> > thinking that it must be the CV joints as the ones on the car are from
an
> > 85
> > Cabriolet that I used for parts of my Frankenjetta.
> >
> > ***
> > Didja torque the cv joint nut in correct and all? Might have killed a
> > bearing, if it rolled around any extent with the cv joints out, it can
ki=
> ll
> > a bearing easy, but you know that...  it cocks the rolling elements,
then
> > when you torque it up, and don't roll the bearing over any, it catches
and
> > brinnells the race.
> > ***
> >
> >  Funny thing is there is no back and forth play of the shaft.  The only
> > play
> > I can see is about a =BD=94 of looseness when turning the wheel back and
=
> forth
> > before there is movement of the axle.  My other thinking was the front
> > wheel
> > bearings but that just doesn=92t seem to fit the data.  What think ye
all?
> > Hayden
> >
> > -james
> >
> >
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> >
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