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Forum Index : Other Stuff : 1300/1100 Classic Mini Gearbox.....
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Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 10013 |
Well.... THIS isn't good.... Bad Box Smoke makes things work. When the smoke gets out, it stops! |
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Revlac Guru  Joined: 31/12/2016 Location: AustraliaPosts: 1301 |
Name Change, Box of Gears!  Cheers Aaron Off The Grid |
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| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 10013 |
Yes, that's rather apt! I really don't know what has happened here. I've pulled lots of classic mini engine/box things to bits and rebuilt them in my time, and I have NEVER seen a box destroy its double-row bearing like this. I've seen plenty of bad bearings, worn bearings, loose or tight bearings, but I have never seen one of these so badly destroyed that it has dropped its balls - literally. There are about five balls from the bearing, gently soaking in oil in the bottom of the gearbox. I'd love to know if anyone has a theory as to how this could have happened. The only thing I can think of, is that the bearing was a factory dud from the day they put it in. Smoke makes things work. When the smoke gets out, it stops! |
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phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 3360 |
Have had a similar thing happen on an old ZA Fairlane rear wheel bearing. The riveted cage that keeps the balls evenly spaced came apart. When all the balls move to one side the gap between the races opens up enough for the balls to fall out. The reverse of that is how they put them together. It made things quite interesting. Without the balls the brake drum and shoes became the bearing and quickly got red hot. The heat then melted the wheel cylinder rubber cups, letting out all the brake fluid. With a single master cylinder that meant no brakes. The bearings not only hold the car up they keep the axle in. The low mudguard stopped the wheel escaping altogether but now there was no handbrake either, nor engine braking as the spline end had disengaged from the diff. Fortunately it was a flat road so coasted till it stopped. |
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