3c cush drive/sprocket carrier question

The Sock said:
If it was only meant to be done up slightly, why do you suppose the Factory provided an extension handle in the tool kit?
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If the factory was that good, they'd still be here.
No problem in 100s of 1000s of km.

I just nip the flat nut up with a spanner and having put grease on the inside of the adjuster, I don't need to touch that nut again unless I need to get at the sprocket or its carrier.

Paul
 
Paul Marx said:
I've never done up that flat nut more than slightly. It allows the chain to be tensioned without having to loosen it.
No problem in decades of use and numerous tyre changes.

Paul
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I've seen swingarms broken off because the axle wasn't tight.  The bike broke 2 swingarms in a single weekend of thrashing around Zeltweg.  In that case, the wheel bearing spacer had collapsed under pressure and the clamping forces of the axle were drastically decreased. The collapsed tube wasn't apparent at first, I suspected incorrectly installed wheel bearings.  All became clear after the 2nd breakage and the second set of knackered bearings. 

Having the hollow axle only loosely attached will have much the same effect.  Might not snap the end of the swinger during general road use, but certainly won't do roadholding any good.

piet

 
I didn't say loosely attached.
I just don't do it up so tight that I need to loosen it to pull the wheel back a touch.

And I don't ride in Zeltweg. It's foreign and I don't do things like that.

I don't do much roadholding either or use generals. (I did manage to ride a few years with a broken damper rod, including 2 up with luggage. It did feel a lot better with new shocks, new front wheel bearings and steering bearings, and oil in the forks.)

Seriously, as I've written, on my SF2, it's 30 years use and over 100 000 km.

Paul
 
Those stainless steel tab lock washers are horrible,I remember Keith Nairn saying a LIGHT dab of Locktite on the nuts  :o was fine and bin them if you"ve not the originals.
 
Yes, I've jettisoned the tab washers too. The originals on my bike had been re-used so many times they were knackered. I just use a dab of medium strength Loctite. Never had a problem with sprocket bolts coming loose.
 
Dellortoman said:
Yes, I've jettisoned the tab washers too. The originals on my bike had been re-used so many times they were knackered. I just use a dab of medium strength Loctite. Never had a problem with sprocket bolts coming loose.
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I have.
 

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Seen plenty of tab washers securing sprocket nuts and disc rotors on Japanese bikes. Why not try Loctite or a spring washer or a nyloc on your crank nut?  :o :o :o
 
mcnicol said:
Does anybody know why Laverda went with tab washers, instead of either spring washers or Nyloc nuts like the entire known spectrum of all motorcycles made?

Ken
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Same reason race scrutineers demand non-tabbed bolts are wired: It's easy to see that it's done up. How do you check, visually, that the Loctite is working?
Tab washers, like Nyloc nuts, are only meant to be used once.
 
Never rely on just a spring washer to hold something in place that is prone to working itself loose. Tabs are great, if you aren't fussy about looks they can be used over and over safely. If you are really worried, torque it correctly and safety wire it the correct way.
 
Paul Marx said:
I didn't say loosely attached.
I just don't do it up so tight that I need to loosen it to pull the wheel back a touch.

And I don't ride in Zeltweg. It's foreign and I don't do things like that.

I don't do much roadholding either or use generals. (I did manage to ride a few years with a broken damper rod, including 2 up with luggage. It did feel a lot better with new shocks, new front wheel bearings and steering bearings, and oil in the forks.)

Seriously, as I've written, on my SF2, it's 30 years use and over 100 000 km.

Paul
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Anything that isn't done up tight is loosely attached...

We met in Breganze, that's foreign as well. :D 

piet
 
No Breganze is Italy, that's not foreign.

By not done up tight so loosely attached, are you implying that my sprocket spindle isn't married?

Paul
 
mcnicol said:
Does anybody know why Laverda went with tab washers, instead of either spring washers or Nyloc nuts like the entire known spectrum of all motorcycles made?
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I'm a fan of nyloc nuts. I use them in many places on my bikes. But spring washers don't stop nuts from vibrating loose.
 
Dellortoman said:
I'm a fan of nyloc nuts. I use them in many places on my bikes. But spring washers don't stop nuts from vibrating loose.
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Not Laverda, I replaced the 41T sprocket on my GSX1400 for a smaller one last weekend. Sprocket flange nuts were almost loose, no effort at all with ring spanner to undo.
 
Tippie said:
Never rely on just a spring washer to hold something in place that is prone to working itself loose. Tabs are great, if you aren't fussy about looks they can be used over and over safely. If you are really worried, torque it correctly and safety wire it the correct way.
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Any tips on tightening the bolt without distorting/wrinkling the tab?
 
Spyder31 said:
Any tips on tightening the bolt without distorting/wrinkling the tab?
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Yeah, chuck the tab away and use Loctite.  :D

You could try a dab of Loctite between the tab washer and sprocket, and grease under the bolt head. Nip it up and give it half an hour for the Loctite to set then tighten it fully. I dunno if it'll work (I only just thought it up) but it's worth a try.
 
Shite pattern parts made out of foil - annoying!  Cam's right.  :D
I think I had some success by clamping the curved section of the tab to the sprocket in a vice with soft jaws, and a dab of grease under the bolt head.
 
Yeah, chuck the tab away and use Loctite.  :D

Seconded, though i did say it much earlier. :D

Stainless wasn"t meant to be bent and don"t cut your fingers on them, you could loctite the nut and leave them unbent  :D
 
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