[FC] Differential side bearing

[Paul Campbell]

>From: Bill Wells <brierpath@yahoo.com>
>Reply-To: corvanatics@corvair.org
>To: corvanatics@corvair.org
>Subject: Re: [FC] Differential side bearing
>Date: Tue, 6 Jul 2004 06:13:56 -0700 (PDT)
>
>Charles,
>
>I have removed several FC bearings from the axle
>successfully. Here is what I do.
>For tools, you will need a bearing separator. I use an
>OTC PT 1124. This was about 140 bucks, but has to be
>top quality.
>I use a Harbor Freight 12 ton press. This is just
>barely long and strong enough for the job. I have to
>remove the lug studs to give me enough travel on the
>press.
>Soak the joint between bearing and axle with a
>penetrant oil and bolt the separator below the puller
>ring. Make sure you are not in the groove on the axle.
>As per typical hydraulic press use, you will require
>various blocks and pieces of steel to use as supports
>for the separator.
>About half the time, the puller ring will be ruined
>during the process, but I have never ruined a bearing.
>
>This is not a walk in the park, but as you have found
>out, you can't trust just anyone with these bearings.
>
>Good Luck,
>Bill
>
>--- Charles <r75@shaw.ca> wrote:
> > Hi all,
> >
> > Well, I'm back from a long weekend to take another
> > look into what is
> > making noise from my van's rear end. Ok, I've gotten
> > some good advice
> > from some of you already about this. Here's the
> > original observations:
> >
> > I heard some nasty scraping from what I thought
> > might be the rear
> > brakes. There was no real change in the sound when
> > the brakes were
> > applied so at first I thought a rock or some piece
> > of spring had broken
> > off and was grinding around in the drum. It happened
> > a couple of times
> > for a few minutes and then just stops and then
> > starts up again. I can't
> > imagine that the bearings would stop making noise
> > once something goes
> > wrong. I pulled the drums and can't see anything
> > wrong. There was no
> > evidence of something scraping around. I did notice
> > that the star wheel
> > for the self-adjusting brake was not engaging on one
> > side (the side
> > where I thought the noise was coming from). I can
> > spin the wheels and
> > hear nothing like the god-awful scraping. Before I
> > parked I put it in
> > reverse and then applied the brakes and then went
> > forward and the noise
> > decreased significantly. I'm beginning to suspect
> > that the differential
> > is the problem. The noise is not engine-speed
> > related. I did notice that
> > when I pulled on the hub that it moved in and out
> > about an eigth of an
> > inch. The bearings aren't great but again I find it
> > hard to believe that
> > they could go quiet once they start making noise.
> >
> > Tonight I'm taking off the section of floor over the
> > tranny/diff and
> > having a peek inside the diff which is where I
> > strongly suspect the
> > problem to be. My question is:  Is it possible to
> > remove/change the side
> > bearing in the diff without having to remove the
> > diff or drop it down?
> >
> > I have another question: Has anyone sucsessfully
> > separated a rear axle
> > bearing from the axle shaft without destroying the
> > bearing of course?
> >  If so, what's the secret?
> >
> > The reason I ask is that I had previously taken a
> > set of axle/bearing
> > assemblies to a licenced machine shop to have the
> > bearings pulled off so
> > that I could inspect them properly and with a bit of
> > luck salvage one
> > useable bearing as a back up. When I went to pick up
> > my professionally
> > separated bearings I was informed that they could
> > not budge them. They
> > even tried pulling on the outer race which of course
> >
> > cracked/broken/useless. A good reminder to never
> > trust anyone. Sure, I
> > could have complained but to what end? Anyone who
> > would do what they did
> > is not going to stand behind their "mechanical
> > skills". All I can do is
> > warn my local car enthusiasts about this shop.
> >
> > Thanks for the opportunity to rant a little and I
> > hope somebody can help.
> >
> > - Charles
> > _______________________________________________
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> >
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> >
>
>
>
>
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