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Messages - BEVANC

Pages: 1 [2]
16
Pre War / OHV Sloper Gearing
« on: 21 April, 2017, 04:29:48 »
Hi folks,
Since recently purchasing an S29 3 speed 500 cc ohv Sloper, I have felt that it was working pretty hard at speed. 

The 1930 BSA Instruction book quotes the following gearing for a 4.93 H.P. model: engine shaft 19 tooth; clutch chainwheel 48 tooth; gearbox driving sprocket 19 tooth; rear wheel 42 tooth.

Mine are as specified except that the rear is 46 tooth, so that suggests an obvious way to drop the revs I guess.

I would be interested to know what gearing owners of similar bikes have.

Cheers,
Bevan

17
Pre War / Re: Replacing Sloper fork spring
« on: 21 February, 2017, 18:14:01 »
Hi Dean,

I have a parts list, a 1930 "Book of the BSA", several useful Sloper articles by Bernal Osborne from old motorcycle magazines; also bought the complete set of the 1930 series "Motorcycle Repair" and Upkeep, which has a section on vintage BSA engines.  So I have quite a lot of engine and clutch info but not much about the frame, magneto, cycle parts etc.

I will look to purchase an owners handbook, but in the short term, a copy of the fork spring bit would be really useful.  My email is bevanc@actrix.co.nz if you are able to send it, that would be much appreciated.

Many thanks,
Bevan

18
Pre War / Re: Bsa magneto repair
« on: 21 February, 2017, 17:58:42 »
Thanks for that - I will definitely have to find/make up something suitable.  I've attached a photo of the points on my 1929 Sloper - no idea if they as per original design.
Cheers,
Bevan

19
Pre War / Re: Bsa magneto repair
« on: 21 February, 2017, 02:02:03 »
Good to know an Easycap will fit; I'll take closer look at mine. 

Out of curiosity, what do you use to tighten the nuts on the points ?  I had no spanner anywhere near slim enough (not even a set of points spanners I use on my Enfield) and ended up using fine nose pliers, which isn't ideal.  Was there originally some special tool ?
Cheers,
Bevan

20
Pre War / Re: Bsa magneto repair
« on: 20 February, 2017, 01:18:27 »
"I would suggest getting a Brightsparks condenser fitted while you are at it."

I'd second that, provided it fits, they are excellent. 

On my Panther magneto it fits inside the points housing, meaning that if it fails, you don't have to take the magneto apart, or even off to replace it.  I can't see how one would fit inside my BSA Sloper magneto points, there is scarcely enough room for the points mechanism.

Cheers,
Bevan

21
Pre War / Re: Sloper mag problem
« on: 18 February, 2017, 01:52:42 »
Here's a couple of photos of the magdyno on my bike.  As I said, I have no idea if it is the original type.
Dyno is currently not connected so I'm running a total loss from a gel battery.  May look into getting it going once I've sorted out more pressing issues.
Cheers,
Bevan

22
Pre War / Re: Sloper mag problem
« on: 17 February, 2017, 04:09:24 »
Will be too dark by the time I get home today. I'll take a photo tomorrow.
Cheers
Bevan

23
Pre War / Re: Sloper mag problem
« on: 16 February, 2017, 20:48:33 »
My 1929 500 cc OHV Sloper mag has same model stamping and has the HT at the right rear - that is closest to the timing side. No idea if this is the original though.
Cheers
Bevan

24
Pre War / Re: Replacing Sloper fork spring
« on: 15 February, 2017, 18:31:37 »
Thanks Julian,
Thanks for that extract  - very bit of info helps. Even jacking the bike up is not entirely straight forward - it is so low to the ground that neither a bottle jack or trolley jack will fit under.  I presume it is not advisable to jack via the crankcase, so I need to sort out a way to lift it only by the lower frame rails, which are only 12 cm or so from the ground.
Cheers,
Bevan

25
Pre War / Replacing Sloper fork spring
« on: 14 February, 2017, 06:45:00 »
Hi folks,
I'm new to girder fork bikes and would appreciate any tips on swapping the fork spring on my 1929 Sloper.  I presume it is under compression. Have bought a new spring since current one is very soft.
Cheers,
Bevan

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