Log of Hub Failures - Page 2 - MVAgusta.net
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post #11 of 19 (permalink) Old 09-10-2019, 11:11 PM
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Ok, stripped the hub down and the needle bearings is where the slop is occurring. I have ordered the bearings and seals to come from Applied Industrial Technologies, who are a distributor for skf and others. They are in stock in Melbourne.
In the meantime I will now attack the 3 pin plug between the alternator and the regulator, which has been cooked. Very tempted to solder that. Very rare that I have had to unplug it.

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post #12 of 19 (permalink) Old 09-11-2019, 12:35 AM Thread Starter
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Very unusual for needle bearings to wear Jon.
Especially with 2 of them there on the later hub.
Were the bearings dry?
Glad you are sorted with the parts.


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post #13 of 19 (permalink) Old 09-11-2019, 02:32 AM
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Definitely not dry. Cleaned and repacked with lithium grease every 6000km, when I do a service. Chain never tight, pinch bolts done to spec. No signs of heat or rust.
Will be interesting when I get to put it back together. I have usually found the spacers to be an easy slide fit, and the axle to be a little more work.
Once I had the roller bearings out and slid them over the spacers, there was visible slop. I was quite surprised. I presume it was hidden somewhat when the sprocket and wheel nuts get torqued up.

The oem bearings and seals are branded INA by the way.

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post #14 of 19 (permalink) Old 09-11-2019, 07:50 AM
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Quote:
Originally Posted by revhead1957 View Post
In the meantime I will now attack the 3 pin plug between the alternator and the regulator, which has been cooked. Very tempted to solder that. Very rare that I have had to unplug it.
A lot of voltage/current going through those 3 wires !!! Any slight looseness and/or corrosion results in resistance = heat. Common problem on a lot of bikes dating way back. (I've seen lot's of old Hondas and Yamahas with this problem).

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post #15 of 19 (permalink) Old 09-16-2019, 04:25 PM
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All back together. Road test this weekend, weather permitting.

Omitted to mention to the other half that I used the oven to heat the hub before pressing the bearings back in...
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post #16 of 19 (permalink) Old 09-24-2019, 06:39 PM
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Road tested excellent

After thinking about it, I think the root cause was having the chain too tight. I always check with the rear wheel unloaded. I was setting the chain at 55mm at full droop. As the suspension works the chain gets more tight. When I checked it with static sag it comes up at 50mm. So as the suspension works to full stroke on our shit roads I think the chain was getting even more tight.

Increased chain slack to 58mm at full droop. Now all happy.

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post #17 of 19 (permalink) Old 09-24-2019, 11:32 PM Thread Starter
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post #18 of 19 (permalink) Old 09-29-2019, 06:48 AM
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you can add me aswell! 16500KM Hub was damaged like the dealer told me, he couldnt fit the spacers and even the bearings back in cause the hub was deformed? Brutale 800 2015

i now ride a design corse hub cause the original mv part wasnt available at that time

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post #19 of 19 (permalink) Old 09-29-2019, 04:46 PM Thread Starter
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That is low mileage for a new style hub to fail.
Was the hub serviced at 12000kms?


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