Portofino Norton's Garage
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no absolutely they were perfectly fixed
Clutch inspection time
- Thread starter Boss302
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cliffa
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This is what Greg Allen from the Facebook group did to repair his. He used a Dremel type tool to grind away the damaged material, and shape semi circular recesses then inserted woodruff keys into the basket…
Portofino Norton's Garage
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I've found at Thiel a complete used cltuch basket but no indications about mileage and impossible to see the real wear without dismounting.
By the way do you know if the cush drive spring seats in the clutch basket are flat or rounded on the springs shape? Mine are so worn that it is not clear.
By the way do you know if the cush drive spring seats in the clutch basket are flat or rounded on the springs shape? Mine are so worn that it is not clear.
cliffa
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I don't think Ollie would sell a bad one.
Have a look here. https://www.accessnorton.com/NortonCommando/another-clutch-basket-failure.30698/#post-481786
Portofino Norton's Garage
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I didn't say that, only also my clutch basket appeared perfect until dissasmbled. it is impossible to see the springs seats wear without opening the device and removing the springs.
No one can guarantee it at closed eyes.
No one can guarantee it at closed eyes.
cliffa
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Agreed, however if the spring pockets are worn the basket will have rotational play, which can be discerned without dissassembly.
Portofino Norton's Garage
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not in my case Cliffa, no rotational play neither on the rivets. And the wear inside was severe, with springs approaching an eventual failure
Stephen_Spencer
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Hey Cliff, Tony et al.
This is the most recent commentary on the dreaded clutch disease, so I’ll add to this and seek a little advice if I may - I think I may have contracted it!!
I mentioned on another thread that whilst checking for clutch serviceability, I found minimal rotational play of the basket. I’ve had a closer look today (after my weetabix) and found further rotational play, independent to the basket. Shown in video clip.
It is rotational only with approx 1mm of movement. So am I right in saying that indicates likely wear to the spring pockets/springs, as opposed to worn/failing rivets? Is 1mm too much - is any movement acceptable?
Appreciate your assessment.
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TonyA
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Hey Cliff, Tony et al.
This is the most recent commentary on the dreaded clutch disease, so I’ll add to this and seek a little advice if I may - I think I may have contracted it!!
I mentioned on another thread that whilst checking for clutch serviceability, I found minimal rotational play of the basket. I’ve had a closer look today (after my weetabix) and found further rotational play, independent to the basket. Shown in video clip.
It is rotational only with approx 1mm of movement. So am I right in saying that indicates likely wear to the spring pockets/springs, as opposed to worn/failing rivets? Is 1mm too much - is any movement acceptable?
Appreciate your assessment.
Hello Stephen , I don’t think it should rotate easily. Can I ask if the rotation of the basket is independent of the clutch ring gear ? I am not asking about the starter ring gear here. I have a full clutch here in the garage I can check. I want to say that the rivets should be holding the basket together relatively tight. But Stu should be asked for an opinion , he deals with many more clutches than I have.
Stephen_Spencer
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Hi Tony - thanks for the input. Have to admit I’m struggling a bit to fully understand the relationship between the clutch basket, clutch gear and the cush drive plate and springs - having never stripped them.
As best as I understand, the rivets hold these assemblies together axially, whilst allowing a slight rotational movement of the clutch gear (whilst the springs compress in the cush plate) before rotation of the clutch basket occurs.
The slight rotation of the clutch basket on my bike is independent of the clutch gear. Pretty sure I can hear the cush springs tapping against their housing, rather than a metallic knock that might indicate loose rivets.
I don’t know if Stuart monitors this site regularly in the same way as he does FB - much quieter on here of course. I may try and send him a DM on his Motorvated site. Certainly willing to remove the clutch and send it back to Stu for refurb if necessary.
Would it be worth removing the clutch internals to view the rivet heads, without removing the basket? I know I won’t be able to rule out loose rivets entirely, but it may provide other clues. A quick check for any movement between basket and gear on your spare clutch would be useful
.Thanks Tony, appreciated. Steve.
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TonyA
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Hello Steve , I looked at my spare clutch basket and can tell you it should be tight. My spare basket is from my 2014 November build and after more than 23,000 miles it is still tight. Those clutch parts should be sandwiched together tightly with noHi Tony - thanks for the input. Have to admit I’m struggling a bit to fully understand the relationship between the clutch basket, clutch gear and the cush drive plate and springs - having never stripped them.
As best as I understand, the rivets hold these assemblies together axially, whilst allowing a slight rotational movement of the clutch gear (whilst the springs compress in the cush plate) before rotation of the clutch basket occurs.
The slight rotation of the clutch basket on my bike is independent of the clutch gear. Pretty sure I can hear the cush springs tapping against their housing, rather than a metallic knock that might indicate loose rivets.
I don’t know if Stuart monitors this site regularly in the same way as he does FB - much quieter on here of course. I may try and send him a DM on his Motorvated site. Certainly willing to remove the clutch and send it back to Stu for refurb if necessary.
Would it be worth removing the clutch internals to view the rivet heads, without removing the basket? I know I won’t be able to rule out loose rivets entirely, but it may provide other clues. A quick check for any movement between basket and gear on your spare clutch would be useful
Thanks Tony, appreciated. Steve.
play. It is possible that the rivets can be re-peened and then welded. Talk to Stu asap.
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