Author Topic: how to remove primary drive sprocket  (Read 2854 times)

Offline a10gf

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Re: how to remove primary drive sprocket
« Reply #15 on: 29.12. 2013 13:37 »
Just an idea, remove the oil scavenge cover, and see if you can invent a way of locking it (without damaging anything!) Got some balancing drilling on mine, 8mm fits nice (if I ever should need to lock the crank). See picture.

Quote
hexagon SRM nuts - but no way would it fit
Return it for an exchange, and let them cover all the postage! & they would surely want to investigate, to avoid any future problems.

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Online Rocket Racer

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Re: how to remove primary drive sprocket
« Reply #16 on: 20.01. 2014 00:00 »
A bit of old primary chain held in a vice could be used to lock the sprocket .

this effectively emulates the other options of using the back brake while the bikes in gear or holding the clutch.

I normally tighten and loosen mine with a nice soft brass drift. Not pretty but it doesn't damage the nut and I lockwire it.

personally I would only ever support the pistons to support the pistons  *whistle* , never to lock the motor for tightening or loosening bolts. *eek*

Much easier to do before the primary comes off, but a bit late in your case this time around.
A good rider periodically checks all nuts and bolts with a spanner to see that they are tight - Instruction Manual for BSA B series, p46, para 2.
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Online bsa-bill

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Re: how to remove primary drive sprocket
« Reply #17 on: 20.01. 2014 09:15 »
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personally I would only ever support the pistons to support the pistons 

Fair point RR - but now and then we (well I ) have to walk on the wildside
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline paulc67

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Re: how to remove primary drive sprocket
« Reply #18 on: 20.01. 2014 21:03 »
still not sure about rebuilding it my self does any one know some one in essex/suffolk area that rebuilds these for a reasonable price

Online Angus

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Re: how to remove primary drive sprocket
« Reply #19 on: 21.01. 2014 10:41 »
I used Roger Sharman from Cake Street classics (in Suffolk), he has been excellent on the mechanical stuff, the rest having been done many years ago and never used.  HE even backed up some of the parts he put on (side stand, foot rest rubbers) which he admits are not that good (Was*****l) but still gave a full refund, The problem is the word reasonable, I thought he was reasonable because he did what I wanted in the budget given (well almost but I added stuff). BUT that does not mean cheap maybe worth giving him a call and or visit and talking it through with him.
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Offline Butch (cb)

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Re: how to remove primary drive sprocket
« Reply #20 on: 21.01. 2014 14:33 »
I would second that recommendation for Roger at Cake Street. Can't really comment on the price, but his work is absolutely top notch.
Warning - observations made by this member have a 93% unreliability rating.

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Offline paulc67

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Re: how to remove primary drive sprocket
« Reply #21 on: 21.01. 2014 16:11 »
Thanks Angus i may well give him a call