swingarm hub and chain

TopiToo · 11-Jul-2009, 20:12

Hello

I need some help, as I am not sure why this would happen.

Took the bike for a spin up the road, and the chain slowly became
very loose, so I undid the two main swingarm bolts and adjusted
the hub to tighten the chain. All ok then the same thing happened again.

I have checked the locking nut on the side of the swinging arm
(although I never removed it)

Something is not right, with the hub any ideas?

regards

TopiToo

Shazaam! · 11-Jul-2009, 23:45

It sounds like your eccentric hub is in the top 1-2 o'clock position instead of the correct lower 4-5 o'clock position. Both positions give the same chain freeplay but the torque-induced tension at the upper position tends to loosen the chain if the hub eccentric rotates.

PeteB · 12-Jul-2009, 11:52

Steve, as Shazaam says; if it is in the wrong position I seem to recall that the caliper mounting bolts are more diificult to access.

Pete

TopiToo · 15-Jul-2009, 21:12

Hello Shazaam/PeteB

Problem now fixed, it was indeed as Shazaam suggested,

Thankyou.

TopiToo

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11-Jul-2009, 23:45	#2
Shazaam! DSC Club Member Big Twin Posts: 1,167 Join Date: Nov 2001 Location: San Diego, CA It sounds like your eccentric hub is in the top 1-2 o'clock position instead of the correct lower 4-5 o'clock position. Both positions give the same chain freeplay but the torque-induced tension at the upper position tends to loosen the chain if the hub eccentric rotates. Reply

12-Jul-2009, 11:52	#3
PeteB Registered Forum User GTL Posts: 403 Join Date: Jun 2001 Location: ampshire Mood: ten, nine, eight oh bu**er lets go! Steve, as Shazaam says; if it is in the wrong position I seem to recall that the caliper mounting bolts are more diificult to access. Pete Reply

15-Jul-2009, 21:12	#4
TopiToo Registered Forum User Ducati Meccanica Bikes: 748ish . . Posts: 2,121 Join Date: Sep 2001 Location: SW Londinium Mood: Sampai jumpa lagi Hello Shazaam/PeteB Problem now fixed, it was indeed as Shazaam suggested, Thankyou. TopiToo Reply