« previous next »
Pages: [1]   Go Down

Author Topic: dynamo drive sprocket  (Read 793 times)

Offline lillygunny

  • Moving Up
  • **
  • Join Date: Dec 2011
  • Posts: 41
  • Karma: 0
dynamo drive sprocket
« on: 05.05. 2012 21:05 »
Trying to remove the drive sprocket on my RGS by method in Haynes manual: "tap sharply with a drift" to free the sprocket from the tapered shaft. No success. I have tried heating the sprocket also. I would apprceciate any help.

Thanks,
Ron
Logged

Online bsa-bill

  • Wise & Enlightened
  • *
  • Join Date: Mar 2006
  • Posts: 5720
  • Karma: 66
Re: dynamo drive sprocket
« Reply #1 on: 05.05. 2012 21:49 »
Something behind it to apply a gentle pressure, like a shoehorn shape then a sharp tap often does it
Logged
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline Goldy

  • Warwickshire, England
  • Resident Legend
  • *****
  • Join Date: Dec 2008
  • Posts: 619
  • Karma: 9
Re: dynamo drive sprocket
« Reply #2 on: 05.05. 2012 22:48 »
They can be a very tight fit because it,s on a taper. I made a two leg puller with two pieces of steel strip bent at the ends in the vice. Weld another piece across the top and weld a nut on for an extractor screw.
Logged
56 A10 Golden Flash - Restore, ride, relive.                                          
56 C12 BSA project ongoing

Offline lillygunny

  • Moving Up
  • **
  • Join Date: Dec 2011
  • Posts: 41
  • Karma: 0
Re: dynamo drive sprocket
« Reply #3 on: 06.05. 2012 00:15 »
Aha, the ol'e shoehorn trick. Worked like a charm with an hour of WD-40 along the treads.
Thanks bsa-bill.

Ron
Logged
Pages: [1]   Go Up
« previous next »