RE: SER1 (Not) Normal Noise rear axle/Diff ?!

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Hi,
In my pile of old stuff, I have a front axle housing that has a dimple 
about a 3/4 inch deep.
Never noticed it, was done by previous owner.
But inside shows the ring gear had to wear into the dimple. So the 
clearance isn't very great.

Bob B


At 03:39 PM 11/2/2004 +0000, you wrote:

>As I understand Uli's original email, this dimple is 'concave' in that
>it goes into the casing, and is not sticking up proud of the casing. I
>have seem some pretty battered axle cases in my time, so I would very
>much doubt that the gears inside are touching the casing for such a
>small dimple or dent.
>
>I remember reading that new gears need to 'bed' in so to speak, so
>maybe overtime the sound will reduce as the teeth wear in to each other.
>It may be worth filling the axle with ep90 or equivalent and seeing if
>the noise is still there.........
>
>Cheers
>Mark
>Halifax UK
>(currently hosting Tom Bache and Geoff.....)
>
>
>
> >>> tollefson@xxxxxxx.xx 02/11/2004 15:17:20 >>>
>Hello Uli
>I have seen this sort of thing before( the dimple) They are caused by
>sheared off bolt heads from the diff carrier. What happens is, over
>time,
>the 10 or so bolts that hold the crown wheel to the differential
>carrier
>come loose and eventually breal off. the pieces then get picked up by
>the
>spinning crown wheel and dent or puncture the axle casing.
>Or worse, damage the differential by breaking off teeth( that could be
>the
>clicking noise)
>It would definately be a good idea to open and inspect the
>differential
>because one sheared bolt means more to follow.
>
>Tom Tollefson
>   -----Original Message-----
>   From: series1-host@xxxxxxxxx.xxx
>[mailto:series1-host@xxxxxxxxx.xxx]On
>Behalf Of Tom Wykes
>   Sent: November 2, 2004 8:49 AM
>   To: series1@xxxxxxxxx.xxx
>   Subject: Re: SER1 (Not) Normal Noise rear axle/Diff ?!
>
>
>
>   If the noise is coming from the dimple try putting a big screwdriver
>or
>other metal shaft on the outside of the dimple and put the other end of
>the
>shaft in your ear. If the noise is louder there than anywhere else on
>the
>housing then it's a good chance that, that is where the noise is
>coming
>from. and try it on other parts of the axle. You could also work out
>the
>gearing and count how many clicks you get in one rotation of the wheels
>this
>should also give you a clue as to where the noise is coming from.
>
>
>   At 13:37 02/11/2004, you wrote:
>
>
>     Hello All,
>
>     S1 86" 1955, rear axle, completely restored in nearly as new
>condition.
>No oil filled in, no brakedrums fitted.
>
>     I have a noise, when turning the wheels. It s a light metalic
>clickclickclick which sounds like a missing roll in a bearing, but
>everything is okay or new. Is that only why there is no oil in the
>diff/axle
>and that could be the clickclick from turning with the dry halfshafts
>the
>dry 3 gearwheels in the diff ?
>
>     I have also a small but ca. 3 mm deep dimple in the back of the
>diff
>housing. Is it possible, that the teeth of the large planetary wheel
>scratches against the innerside and make that noise ? How much
>space/distance is between the large planetary wheel and the housingwall
>?
>
>     I m not very amused about a second opening of the whole axle,
>both
>halfshafts out, diff out for seeing nothing, brcause evrything is
>finished
>in black paint.
>
>     Greetings from Germany
>
>     Uli
>
>
>
>
>
>
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>   Regards.
>
>   Tom Wykes.
>
>
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