Author Topic: lucas k2f gear drive pinion  (Read 2550 times)

Offline a10sausage

  • A's Best Friend
  • ***
  • Join Date: Jan 2009
  • Posts: 98
  • Karma: 0
  • 58 flash
lucas k2f gear drive pinion
« on: 06.12. 2010 21:15 »
hi folks
           the gear drive fibre pinion for my manual advance / retard magneto has some damage to the teeth and i would like to replace this with an alloy version..how do i remove the old fibre  gear  pinion it seems to be riveted all the way through the metal pinion centre holder that grips the mag and does anybody know where i can purchase a metal or alloy version...srm used to sell them but i cant find them on there website anymore
   
1959 bsa bantam d1
1956 ariel huntmaster
1922 triumph model h
1930 sunbeam model 8
1936 bsa q21 500 bluestar
1939 velocette mac
1975 honda cb750
2013 victory vegas

Offline MG

  • Resident Legend
  • *****
  • Join Date: Dec 2009
  • Posts: 949
  • Karma: 23
Re: lucas k2f gear drive pinion
« Reply #1 on: 06.12. 2010 21:34 »
You won't need the steel centre, since the ally pinion for the manual mags will mount directly on the shaft. No need to take the old one apart!

Draganfly used to have the aluminium pinions, deGroot BSA in the Netherlands have them listed as well (can't link directly, visit http://www.degroot-bsa.nl/ and search for "67-0540"). Probably SRM will be able to supply one as well, you might have to drop them an email or call them.

Cheers, Markus
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Offline a10sausage

  • A's Best Friend
  • ***
  • Join Date: Jan 2009
  • Posts: 98
  • Karma: 0
  • 58 flash
Re: lucas k2f gear drive pinion
« Reply #2 on: 06.12. 2010 23:07 »
thanks markus

thats very helpful
1959 bsa bantam d1
1956 ariel huntmaster
1922 triumph model h
1930 sunbeam model 8
1936 bsa q21 500 bluestar
1939 velocette mac
1975 honda cb750
2013 victory vegas

Offline a10sausage

  • A's Best Friend
  • ***
  • Join Date: Jan 2009
  • Posts: 98
  • Karma: 0
  • 58 flash
Re: lucas k2f gear drive pinion
« Reply #3 on: 07.12. 2010 13:15 »
if i decide to use a new fibre gear wheel..does any body know the exact size of the rivets and how do i split the old one from its casing !
1959 bsa bantam d1
1956 ariel huntmaster
1922 triumph model h
1930 sunbeam model 8
1936 bsa q21 500 bluestar
1939 velocette mac
1975 honda cb750
2013 victory vegas

Online RichardL

  • Outside Chicago, IL
  • Wise & Enlightened
  • *
  • Join Date: Nov 2007
  • Posts: 4997
  • Karma: 48
Re: lucas k2f gear drive pinion
« Reply #4 on: 07.12. 2010 14:08 »
I recall seeing that the rivets can be bought in a set. I will try to help locate same when not thumb typing and with better internet access.

Richard L.
Plan on signing up for the world-wide 2017 DISTINGUISHED GENTLEMAN'S RIDE on September 30, 2018. Watch website at https://www.gentlemansride.com for details.

Offline iansoady

  • Valued Contributor
  • ****
  • Join Date: Jul 2010
  • Posts: 471
  • Karma: 9
Re: lucas k2f gear drive pinion
« Reply #5 on: 07.12. 2010 15:10 »
There was a topic all about this a few weeks ago. In fact there was someone who'd bought 100 rivets and was offering them.

Here in fact
Ian.
1962 Golden Flash (arrived)
1955 Velo Viper/Venom (departed)
2004 Triumph Tiger 955i (staying)

Offline Stu55Flash

  • A's Best Friend
  • ***
  • Join Date: Feb 2010
  • Posts: 200
  • Karma: 3
    • Flash Resto
Re: lucas k2f gear drive pinion
« Reply #6 on: 07.12. 2010 20:24 »
It was me. If you PM me with your address i will post you some for the cost of the postage. The rivets are 3/16 * 1". I know these are ok for the auto advance can you check these are the correct size for the manual advance.

Stu
"Keep a distance from lady "L" drivers in cars. Some are not mechanically minded, are slow to acquire road sense, an are apt to panic..." The Pitman Book of the BSA Twins.
Golden Flash Plunger 1955, Francis Barnett Falcon 67 1954, Ferguson TEA Tractor 1951. Looking for another project!

Offline a10sausage

  • A's Best Friend
  • ***
  • Join Date: Jan 2009
  • Posts: 98
  • Karma: 0
  • 58 flash
Re: lucas k2f gear drive pinion
« Reply #7 on: 07.12. 2010 23:43 »
a very kind offer stu55flash .....but i have just spotted this and have decide to go the whole hog  http://www.srmclassicbikes.com/catalogue/index.php?target=products&product_id=614  and refurb my old gear sometime later...but when i do decide to do the job how do i get the old rivets off, do i grind them, and do i need a rivet gun to put the new ones on..i know this sounds a bit daft but i have never done any riveting...cheers folks!
1959 bsa bantam d1
1956 ariel huntmaster
1922 triumph model h
1930 sunbeam model 8
1936 bsa q21 500 bluestar
1939 velocette mac
1975 honda cb750
2013 victory vegas

Offline Stu55Flash

  • A's Best Friend
  • ***
  • Join Date: Feb 2010
  • Posts: 200
  • Karma: 3
    • Flash Resto
Re: lucas k2f gear drive pinion
« Reply #8 on: 08.12. 2010 00:06 »
Drill the heads out without damaging the counter sink. Then trim the rivet to a length with an extra 3/4 (rule of thumb) of the rivet diameter than the width of the parts to be riveted together. Then whilst ensuring that the parts are held together and support the other head end of the rivet on the vice or something solid, pein over (with a ball pein hammer) the end of the rivet to fill the counter sink or create a dome head. A larger number of small taps rather than a few big hits, I used a metal plate to protect the fiber gear while I did the riveting. Finish this with a rivet set for a domed head if you have one, or file flush the counter sink.

Stu
"Keep a distance from lady "L" drivers in cars. Some are not mechanically minded, are slow to acquire road sense, an are apt to panic..." The Pitman Book of the BSA Twins.
Golden Flash Plunger 1955, Francis Barnett Falcon 67 1954, Ferguson TEA Tractor 1951. Looking for another project!

Offline a10sausage

  • A's Best Friend
  • ***
  • Join Date: Jan 2009
  • Posts: 98
  • Karma: 0
  • 58 flash
Re: lucas k2f gear drive pinion
« Reply #9 on: 08.12. 2010 10:48 »
stu thats fantastic info..i now have enough info to do the job ...its really appreciated !
1959 bsa bantam d1
1956 ariel huntmaster
1922 triumph model h
1930 sunbeam model 8
1936 bsa q21 500 bluestar
1939 velocette mac
1975 honda cb750
2013 victory vegas