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Messages - Swoopster

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Pre War / 1929 Sloper 500cc Crankshaft Rivets
« on: 31 July, 2017, 07:51:46 »
Hi Folks,
Have now discovered the rivets which hold the flywheel [on the primary drive side] to the primary drive shaft/stub are loose and as a minimum the rivets need replacing - so 3 questions:
1. Does anyone know where I can buy replacement rivets?
2. Does anyone have a drawing of the rivets and material specification?
3. Has anyone tried using High Tensile Steel bolts instead of rivets?
Hope someone can help!

Pre War / Re: 1929 Sloper crankcase breather
« on: 19 July, 2017, 12:22:43 »
Hi Bevan,
Guess I could check on mine!
I'll have a look at the weekend.

Pre War / Re: 1929 Sloper "challenge"
« on: 17 July, 2017, 10:09:31 »
No problem - I will take lots of piccies as I dismantle - especially as I've got to put it back together again!! More than happy to share them.
I would really appreciate any info you have - I don't have much other than that which JulianS kindly provided in this thread.
I'll send you a PM as soon as I work out how to do that!
Appreciate your help.

Pre War / Re: 1929 Sloper "challenge"
« on: 16 July, 2017, 15:13:53 »
Ok. Thought it was very likely a problem! Appreciate your advice though - at least i know I've got to get crankshaft out.  Do you (or does anyone else) have any recommendations for Sloper crankshaft specialists once I get it out?

Pre War / Re: 1929 Sloper "challenge"
« on: 16 July, 2017, 12:24:15 »
Hi JulianS,
Picture showing shaft end and very short video (.mov) showing "rotational play".
Hope this helps......

Pre War / 1929 Sloper "challenge"
« on: 15 July, 2017, 08:54:30 »
Hi folks, Just recently joined BSAOC and just recently purchased a 1929 S29 Sloper 500cc OHV. She has been running fine but when I took off primary chain and cush drive for a bit of cleaning/maintenance, I noticed there is some "rotational" play on the crankshaft drive stub ie: you can rotate the crankshaft stub that sticks out into the primary drive chaincase easily with your fingers WITHOUT rotating the engine!! The rotational play is about  1/16" on as measured at the max diameter of the crankshaft stub. I am assuming this is not normal and am planning on engine removal and splitting crankcases to see what on earth is going on. I have heard that the drive-side crankshaft stub is rivetted to the left hand flywheel, which to me as an engineer, sounds an "intriguing" way of fixing the two together! And i have heard these rivets can come loose and hence some rotational play. i guess the  only other options is that the crankshaft stub has snapped, but in a way that allows it to still transmit torque (at the moment!). This does not seem likely as there is absolutely no end float. Does anyone have any experience/comments/suggestions? (BTW -I have tried to contact Jules Dassen from the Technical Area who specialises in pre1930 models but not sure if he's on holiday or my emails are ending up in his email Junk folder?). Any help/advice much appreciated......

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