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 Posted: Oct 23, 2017 10:00AM
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CA
another consideration: check that the shock absorber nuts havent backed out or the bushings hasnt compressed. If it has, then it allows the shock to move up and down causing a knock

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Building a Mini... the full time job

 Posted: Oct 23, 2017 08:12AM
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US
Are you sure that clunk is coming from the rear?

Doug L.
 Posted: Oct 23, 2017 07:42AM
 Edited:  Oct 23, 2017 07:44AM
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US
I spin the wheel and tire, no noise or movement in the wheel bearings. The Clunk I mentioned would happen at  slow speed stopping. like coming to a stop sign

 Posted: Oct 23, 2017 05:44AM
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US
the cup was fine as the ball. I replaced cup and rubber boot while apart,but what I'm asking is why the outer tire wear.

 Posted: Oct 22, 2017 05:14PM
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US
the worn or broken cup will give you a sound when driving over bumps. Maybe like a knocking.
It's been a long time since I dealt with that.

 Posted: Oct 22, 2017 04:00PM
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Worn cup = metal to metal.

 Posted: Oct 22, 2017 12:37PM
 Edited:  Oct 22, 2017 12:41PM
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US
I took the trumpet off and looked at the cup and ball . No visible signs of wear. while the shock and trumpet off , I tried with all my might to move the trailing arm side to side. Nothing loose of any kind. 

I will have to pull the trailing arm to inspect the shaft and bronze bush and needle bearings next.


As a side note, what difference would a worn cup make? It would just lower the height.

 Posted: Oct 5, 2017 06:48PM
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US
I second checking the cup on the ball of the trumpet.

 Posted: Oct 5, 2017 11:47AM
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Possibly the needle roller bearings which support the trailing arm are worn, or have worn the surface of the trailing arm?
That would account for uneven tire wear, and would possibly explain why you can't detect any play with the car raised up and the trailing arm in an uncharacteristic position.

 Posted: Oct 5, 2017 06:55AM
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Since you were unable to produce the noise with the car jacked up, perhaps it is something worn that "wedges" itself in place when the car is not on its wheels.  I would look at the shock bushings, the nylon cup and ball end of the trumpet, and play in the radius arm and its outer mounting bracket.

Doug L.
 Posted: Oct 5, 2017 06:20AM
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I hear a clunk in the right rear. The  RR tire outer tread has significant wear. When I jack up the mini and try to find something loose. I can't.  I'm pulling and pushing. Nothing. Before I take the trailing arm off, I would like the input from this board. Thanks Jim