Author Topic: Oil in the k2f magnet  (Read 717 times)

Offline Marqs1979

  • A's Best Friend
  • ***
  • Join Date: Sep 2013
  • Posts: 109
  • Karma: 0
Oil in the k2f magnet
« on: 28.08. 2016 12:34 »
Hi !

I got problem with oil in the magnet. The seal is not old but i fond the chaft worn. I have grind the chaft some and would like to grind it more but i am afraid that if i take too much the seal becomes too big.
Is there a seal that i can use with smaller inner diameter ?

Regards/Markus

Online BSA_54A10

  • Wise & Enlightened
  • *
  • Join Date: May 2008
  • Posts: 1945
  • Karma: 32
    • BSA National
Re: Oil in the k2f magnet
« Reply #1 on: 29.08. 2016 11:19 »
Go to a bearing shop and see if there is a "Speedy Sleeve" in a size suitable for your shaft.
Then simply ( it is reasonably easy ) slip the sleeve over the shaft , restoring a nice smooth surface for the seal to run on
Bike Beesa
Trevor

Offline Marqs1979

  • A's Best Friend
  • ***
  • Join Date: Sep 2013
  • Posts: 109
  • Karma: 0
Re: Oil in the k2f magnet
« Reply #2 on: 29.08. 2016 18:49 »
I 've been thinking the same thing , it 's just a little crowded space . I do not want to destroy the cone for the auto -advance unit.


Online groily

  • Wise & Enlightened
  • *
  • Join Date: Jul 2007
  • Posts: 1059
  • Karma: 17
    • www.brightsparkmagnetos.com
Re: Oil in the k2f magnet
« Reply #3 on: 29.08. 2016 23:19 »
It is a problem marqs.
It would I think be possible to machine the top part of the taper to 'parallel' and then press/shrink on a collar or sleeve which could then be turned to make a perfect continuation of the original taper. A rather fiddly job, but I'd say it was probably do-able without significantly reducing the strength of the shaft or its fit into the brass end cheek - or wrecking the fit of the ATD.
Good luck!
Bill

Offline Marqs1979

  • A's Best Friend
  • ***
  • Join Date: Sep 2013
  • Posts: 109
  • Karma: 0
Re: Oil in the k2f magnet
« Reply #4 on: 30.08. 2016 20:09 »
I have decided to make an effort , I'm working with a lathe and have access to all the equipment that might be needed.

Online beezermacc

  • Resident Legend
  • *****
  • Join Date: Dec 2011
  • Posts: 902
  • Karma: 36
  • Not for the purist!
    • Priory Magnetos Ltd.
Re: Oil in the k2f magnet
« Reply #5 on: 30.08. 2016 20:48 »
This sounds like more trouble than it is worth. Second hand armatures regularly sell on Ebay for about £25. Furthermore the windings look original. If the capacitor is original as well I wouldn't rely on this magneto to get me very far.
Priory Magnetos Ltd - A10 spares, magneto and dynamo refurbs. www.priorymagnetos.co.uk

Offline Marqs1979

  • A's Best Friend
  • ***
  • Join Date: Sep 2013
  • Posts: 109
  • Karma: 0
Re: Oil in the k2f magnet
« Reply #6 on: 30.08. 2016 20:57 »
This sounds like more trouble than it is worth. Second hand armatures regularly sell on Ebay for about £25. Furthermore the windings look original. If the capacitor is original as well I wouldn't rely on this magneto to get me very far.

You are right ☺ but its fun to fix things :)
I use easycap capitator.

Offline Marqs1979

  • A's Best Friend
  • ***
  • Join Date: Sep 2013
  • Posts: 109
  • Karma: 0
Re: Oil in the k2f magnet
« Reply #7 on: 01.09. 2016 08:51 »
I have started the project.


Offline Marqs1979

  • A's Best Friend
  • ***
  • Join Date: Sep 2013
  • Posts: 109
  • Karma: 0
Re: Oil in the k2f magnet
« Reply #8 on: 01.09. 2016 21:19 »

Offline trevinoz

  • Newcastle, N.S.W. Australia.
  • Wise & Enlightened
  • *
  • Join Date: Jul 2006
  • Posts: 2873
  • Karma: 67
Re: Oil in the k2f magnet
« Reply #9 on: 01.09. 2016 22:13 »
Might have been a good idea to have removed the bearings first. At least the cage and balls.

Offline Marqs1979

  • A's Best Friend
  • ***
  • Join Date: Sep 2013
  • Posts: 109
  • Karma: 0
Re: Oil in the k2f magnet
« Reply #10 on: 04.09. 2016 19:37 »
Now the engine runs again . The future shows if the repair works.

Offline kiwipom

  • Resident Legend
  • *****
  • Join Date: Jan 2011
  • Posts: 751
  • Karma: 8
Re: Oil in the k2f magnet
« Reply #11 on: 04.09. 2016 23:33 »
hi guys, how true,cheers
A10.G.Flash(cafe racer)Honda 250 vtr. Yamaha Virago XV920.

War! what is it good for?Absolutely nothing, Edwin Star.
NewZealand

Offline Marqs1979

  • A's Best Friend
  • ***
  • Join Date: Sep 2013
  • Posts: 109
  • Karma: 0
Re: Oil in the k2f magnet
« Reply #12 on: 27.08. 2017 18:26 »
Hey !

The repair still works after about 3000 kilometers, no oil in the magnet. *smile*