Author Topic: k2f points side bearing  (Read 450 times)

Offline smartsx1x

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k2f points side bearing
« on: 25.06. 2018 20:51 »
Hi i have just fitted new bearings to my magneto but on removing the points side bearing i decided to use a small grinder to remove inner ball race as it was tight and i did not want puller to damage brass spindle, the inner race also had a ring pressed on after which all but fills the hole where the spindle comes through for the points plate.
the bearing is tight on the spindle but i have looked at exploded views of the magneto k2f goldflash  but none show this ring(dragonfly website) do we just leave it off ? where can i get one,  anyone eles  had this ? *conf*

cheers martin
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Online chaterlea25

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Re: k2f points side bearing
« Reply #1 on: 25.06. 2018 21:00 »
Hi,
You need to get the proper puller to remove the bearing, they are not too hard to make up
The ring outside the bearing is needed
You will also need to get the insulating paper star washers, these come in two thicknesses
see here
http://www.brightsparkmagnetos.com/condensectomy/splitting_armature.htm

John
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1961 Super Rocket
1963 RGS (ongoing)

Offline smartsx1x

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Re: k2f points side bearing
« Reply #2 on: 25.06. 2018 21:14 »
i have already fitted insulation washers ( the drive side one was missing and shaft bouncing up and down hence new bearings ) but any idea where i can get a replacment  ring/collar from as it's not shown on any websites ive been to

cheers
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Online JulianS

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Re: k2f points side bearing
« Reply #3 on: 25.06. 2018 21:16 »
The collar is Lucas part 455340 show in illustration below from the 1963 BSA Lucas equipment list.

I would leave it off until you have shimmed the armature - you may have to pull off the inner race to shim behind it.

It is vital that the race is pressed on square (and the outer pressed in square) or the accuracy of timing may be compromised

I usually refit the collar.
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Offline smartsx1x

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Re: k2f points side bearing
« Reply #4 on: 25.06. 2018 21:27 »
Hi no shims fitted to bearing but very thin spacer/packing plates on endplate i made some up from gasket paper and this has given me some endfloat
thanks for the info i will now go on a holy quest for a collar
regards martin
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beezermacc

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Re: k2f points side bearing
« Reply #5 on: 25.06. 2018 21:48 »
Just pm me with your address and I'll send you one.
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Offline smartsx1x

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Re: k2f points side bearing
« Reply #6 on: 25.06. 2018 22:02 »
thank you
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Online chaterlea25

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Re: k2f points side bearing
« Reply #7 on: 26.06. 2018 00:09 »
Hi,
Quote
this has given me some endfloat

Endfloat should be zero, as close as possible

John
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1961 Super Rocket
1963 RGS (ongoing)