24 replies to this topic

[minimarkybecks]

Also you can see how the new CV has a taper (yellow arrow) and the old CV (red arrow). The old CV the taper has worn away!

Trouble is I was used to working on well maintained Minis that were 10 or less years old. My car I got at 19 years old in Canada from Japan. So no history and plenty of horrors found. I shoot myself not replacing the flanges and tapered washers the last two hub rebuilds!!

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Edited by minimarkybecks, 16 July 2020 - 11:23 PM.

[Spider]

Ah yes, looking at the photo on the previous page and this one, it's fairly apparent.  Good find

 

I would actually suggest spending a bit more and investing in a new Flange too, the Tapered Seat in the one on the last page doesn't look too good to me. I've been fitting the EN24 types and found them very good.

[minimarkybecks]

Ah yes, looking at the photo on the previous page and this one, it's fairly apparent.  Good find
 
I would actually suggest spending a bit more and investing in a new Flange too, the Tapered Seat in the one on the last page doesn't look too good to me. I've been fitting the EN24 types and found them very good.

Thanks for your help and advice Moke Spider! I Really appreciate your time and knowledge. I can’t believe I was reusing those worn tapered washers all that time! The bearings were doomed from the start. I will definitely order new drive flanges and probably hubs too! I don’t want to do all this again for a long time!!

Cheers mate!

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[Quinlan minor]

This forces me to wonder how many of the other "premature bearing failures" might, at least in part, come from the same cause?

[Spider]

If you are going down the road of an all out 'new' build, I'm not sure if you missed it on the last page, but I highly recommend the KAD Tapered Washer over the stock split type. I'm 95% sure that the root cause of the issue you've found here is because of that split.

 

 

Thanks for your help and advice Moke Spider! I Really appreciate your time and knowledge. I can’t believe I was reusing those worn tapered washers all that time! The bearings were doomed from the start. I will definitely order new drive flanges and probably hubs too! I don’t want to do all this again for a long time!!

Cheers mate!

 

Your very welcome and thank you for your kind words. I hope it all comes back together OK and goes on to serve you well

 

 

This forces me to wonder how many of the other "premature bearing failures" might, at least in part, come from the same cause?

 

As they say, the devil is in the detail. Like probably most of us here, for a good many years (long ago), I would just curse the failed bearing and change it without looking too much at the other parts, naively thinking that as they don't move against other parts, they can't wear, how wrong was I !!!!

[minimarkybecks]

This forces me to wonder how many of the other "premature bearing failures" might, at least in part, come from the same cause?

Probably quite a lot. I’ve found that as Minis have got older. With the newest at 20 years old now. I still associate them with my youth!! So I have overlooked the tapered washer, drive flange and CV. Until now!!

[minimarkybecks]

If you are going down the road of an all out 'new' build, I'm not sure if you missed it on the last page, but I highly recommend the KAD Tapered Washer over the stock split type. I'm 95% sure that the root cause of the issue you've found here is because of that split.

Thanks for your help and advice Moke Spider! I Really appreciate your time and knowledge. I can’t believe I was reusing those worn tapered washers all that time! The bearings were doomed from the start. I will definitely order new drive flanges and probably hubs too! I don’t want to do all this again for a long time!!

Cheers mate!

Your very welcome and thank you for your kind words. I hope it all comes back together OK and goes on to serve you well

This forces me to wonder how many of the other "premature bearing failures" might, at least in part, come from the same cause?

As they say, the devil is in the detail. Like probably most of us here, for a good many years (long ago), I would just curse the failed bearing and change it without looking too much at the other parts, naively thinking that as they don't move against other parts, they can't wear, how wrong was I !!!!

The KAD washers look very nice! So why would BMC/Rover make them for all these years with a split?
KAD must have decided to make them for a reason. Their products are excellent, and I fondly remember a drive from SE London, down to KAD in deepest Kent. Can’t remember what I picked up now!! That was over 20 years ago.

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Edited by minimarkybecks, 18 July 2020 - 03:03 AM.

[Spider]

I'd say that they had a split washer originally as a means of making up for production tolerances, however, with the quality of the Italian CVs (the ones Mini Spares offer) and Timken Wheel Bearings these tolerances these days are much better than they were years back.

 

KAD offer these as they have found this issue and a means to over come it. I was going to make my own, but someone on the forum here steered me on to these and for the price of them, it's not worth my time making them.

[nicklouse]

The reason KAD made these is they were finding the split ones were chattering on the drive flange and either welding themselves to them or eroding ones of a different metal. What seemed to be happening is that under high Corning forces the washer was being compressed as it can be due to the split. Since introducing the one without the split they have not seen any issues since.

Edited by nicklouse, 18 July 2020 - 09:22 AM.

[Spider]

The reason KAD  Ade these is they were finding the split ones were chattering on the drive flange and either welding themselves to them or eroding ones of a different metal. What seemed to be happening is that under high Corning forces the washer was being compressed as it can be due to the split. Since introducing the one without the split they have not seen any issues since.

 

That too was exactly what I was finding, though I haven't had them weld, but can see that happening.