That thingo with a pin
- Mulger bill
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That thingo with a pin
Postby Mulger bill » Sun Dec 30, 2012 11:31 pm
After servicing the bearings on the rear hub, clean and lube of the jockey wheels and a new shift cable on the rear, I pulled the crank out to give the BB area a good clean and decrud the rings.
Anyhoo, after loosening off the pinch bolts on the LH crankarm this little bugger...
decided to flip out of the way minus the half loop on the left.
Things seemed to go back together fine and the round the block test ride felt OK but I gots to know...
Is this going to cause problems down the line unless replaced as a matter of urgency? The little pin stayed with the main part and dropped OK into its hole in the spindle.
Thanks in advance.
Shaun
London Boy 29/12/2011
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Re: That thingo with a pin
Postby drubie » Sun Dec 30, 2012 11:55 pm
but really, that's rubbish. We get none of it because the choices are illusory.
- toolonglegs
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Re: That thingo with a pin
Postby toolonglegs » Mon Dec 31, 2012 4:56 am
Most important thing is that you put ZERO pressure on the star nut on the end of the crank when doing it up before locking the two Allen bolts up.
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Re: That thingo with a pin
Postby sturmey archer » Mon Dec 31, 2012 9:38 am
TLL when you say zero pressure on the star nut, Ive always done it up with the the tool with my fingers until I feel some resistance. I would have thought the plastic would strip before you cold put too much side load on the bearings?
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Re: That thingo with a pin
Postby toolonglegs » Mon Dec 31, 2012 9:45 am
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Re: That thingo with a pin
Postby Mulger bill » Mon Dec 31, 2012 10:01 am
Toolong, it's very good to know that YOU can live without them, if your left cranks don't fall off because of the lack of them then this 60watt bulb faces zero risk
As to the star nut thingy, I thought its purpose was the same as the top cap in a threadless headset, there to preload the bearings before locking the system together with the pinch bolts? I've always done it up enough to remove any play in the crank then loosened it a micron once I've torqued the bolts. Wouldn't be surprised if I've got this wrong
Thanks again.
Shaun
London Boy 29/12/2011
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Re: That thingo with a pin
Postby Nobody » Mon Dec 31, 2012 11:19 am
There was a video somewhere on replacing BB...
As for the tab thingy, I've broken some of mine. As long as you keep the bolts tight and the plastic cap thingy in the end, it shouldn't be a problem. Also you should be able to tell when the cranks are becoming loose, before they fly off.
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Re: That thingo with a pin
Postby DarrylH » Mon Dec 31, 2012 9:44 pm
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Re: That thingo with a pin
Postby Jean » Wed Jan 02, 2013 9:20 am
Yep, it's a pre-load widget. Do it up finger tight with the proper tool and then do up the pinch screws.Mulger bill wrote:As to the star nut thingy, I thought its purpose was the same as the top cap in a threadless headset, there to preload the bearings before locking the system together with the pinch bolts? I've always done it up enough to remove any play in the crank then loosened it a micron once I've torqued the bolts. Wouldn't be surprised if I've got this wrong
Thanks again.
Shaun
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Re: That thingo with a pin
Postby jules21 » Fri Jan 04, 2013 1:49 pm
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Re: That thingo with a pin
Postby jasonc » Fri Jan 04, 2013 2:09 pm
that's what i do.Jean wrote:Yep, it's a pre-load widget. Do it up finger tight with the proper tool and then do up the pinch screws.
and i do keep that plastic tab in the pedal arm.
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Re: That thingo with a pin
Postby Stepr » Sun Jan 06, 2013 4:07 pm
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Re: That thingo with a pin
Postby Mulger bill » Sun Jan 06, 2013 5:28 pm
London Boy 29/12/2011
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Re: That thingo with a pin
Postby twizzle » Sun Jan 06, 2013 7:39 pm
Sent from my iThingy...
...real cyclists don't have squeaky chains...
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Re: That thingo with a pin
Postby Mulger bill » Sun Jan 06, 2013 7:54 pm
London Boy 29/12/2011
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Re: That thingo with a pin
Postby toolonglegs » Mon Jan 07, 2013 7:18 am
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