BSA B18 custom deluxe

[Kgtime]

Hello to all, I am a owner of a 1936 BSA B18 and was working on the clutch.
Can anyone tell me how to remove the clutch basket? I have everything disassembled but can not remove the clutch basket. Is there some kind of special tool for removal? 
Thanks in advance
Kevin

[Mark Cook]

That looks like you will require a puller.
Remove the push rod and I suspect it will screw on to the hub.

Mark

[DAVE BRADY]

Hi,

It would look like this.  This one is for six spring clutch but may be the same.

Dave.

[Kgtime]

OK great, that helps a lot. At least I now know how it is removed properly, any idea where to buy this tool?
I would make one but I don't have any way of making Withworth threads that size.
Thanks so much for the reply,
Kevin

[militaryron]

https://www.ebay.co.uk/itm/192265119427?_skw=BSA+clutch+puller&itmmeta=01J8Z5BX97T5V0Q0ST19TN42JB&hash=item2cc3e4e6c3:g:-t4AAOSw5sZmoirf&itmprp=enc%3AAQAJAAAA8HoV3kP08IDx%2BKZ9MfhVJKna37ehBBL3hKvy%2FIiZ%2BDXpH1FrjR8bUOt6K4Pyco57C3sIFcOECVHaqd%2BOXvuYPDHJ%2FQzjl%2FoPptEEF%2FRvV90Iy9S%2FFvOfHJ9OcNLY2lOmXNLisMyxGn5klTGQkriFqMjnpxeLCcSYkllFaUR%2FYRXxnfu3spRw5u4tyjwluC9tnGT2k5xd1M2FwOZX0Z8DE0Lv02gDnmOHkeaP2Sfvvoy2xdqYAipTFuwli2dAqSR4oOMbA3CX8SqV9HAXIaW1qEX4Fze7kSwCXEu6CiHEhAzLwlclrtj3Z5sdCF3rk9lmGA%3D%3D%7Ctkp%3ABFBM4NSv5cdk

Click link.  Ron

[Kgtime]

Awesome thank you very much for finding that. After you posted the picture of the puller,I ended up improvising and making my own. I'm still going to buy the proper puller from the link you sent me  so I have the proper one in my toolbox. I can't thank you enough for sending the picture so I knew what it takes to remove it.
Thanks,
Kevin

[Steve.S]

 I'm surprised you haven't lost your balls. I always loose mine, but then my ring is rather loose.

Ron,
All of my '30's hubs are 1 3/16" 24 tpi.
The bloke on ebay quotes 1 1/4" 24 tpi, and Fecked.com quote 1 3/16" 26 tpi for the same part number, which is not very helpful.
I imagine you have this tool in your armoury?
Assuming it's the same tool, any chance of taking a measurement?
Steve.

[militaryron]

I'll check tomorrow Steve. I have at least 3 bikes with the 6 spring clutch, so I must have something that fits. Ron

[Steve.S]

Thanks for that Ron, but the clutch hub in question is the single spring clutch.

[Mark B18]

I am in the process of restoring a B18 like yours, however I am missing the gear change lever and quadrant or gate.
Would you be good enough  to draw round yours on cardboard including any critical dimensions and send  the to me as templates to fabricate replacement parts. As they were only made in very low numbers the chance of finding any used parts is practically  non existant.
I will happily pay any costs incurred.
Kind regards
Mark

[militaryron]

Ah Steve I stand corrected. The single spring, otherwise known as the "Empire Star" clutch has an internal thread.
https://www.ebay.co.uk/itm/202006280924?_skw=BSA+clutch+hub+puller&itmmeta=01J9JM5XBWW33CJ2WX56SG6PJW&hash=item2f08833adc:g:unEAAOSwpDdVGWfW&itmprp=enc%3AAQAJAAAA8HoV3kP08IDx%2BKZ9MfhVJKnxVQ0YB7YvXXatQlVFZBmArkhpBlu%2Bq44OX%2FiJiVSkXrAqeSAKYBQICeHKH6wx6FGpdORV1HxWWFx3RrBQAXo1Zwcb3DsGSdZ8CrBhE1LWVE6usCIv1BgOvWd7fu%2BTexmvfFfnIbopdUXWtrCEicEGjMjSY9oeZIGbfzrPcPObXbxUq6LMvEHCgcohuV33RZr87SyvUIE4Z0QWw%2BykyFiVVGIdZ8Xe5VzjKKzDl31Gj%2Fcs7oCkJCXrlYaLdZrbLiqmejZbmfirUis62bhrbqwFdBhhAqGtHfJmTLCfoNylHA%3D%3D%7Ctkp%3ABFBMhNaX1Mxk

Here is the tool I made up for replacing the spring, using an old Triumph piston, and my special sockets for the nuts.  Ron

[Steve.S]

Ron,
I wonder if there might still be a little confusion here?
My clutch hubs all look like Mr.KG's photo, with external thread, so clearly the tool will have an internal thread.
As far as I can tell, the C10 and B29 have an internal thread and the M20 has a short external thread, but I have no experience of these machines.
My feeling is that the pullers with internal threads available on ebay and fecked.com are for the M20, and may not have the same diameter and tpi as the single spring hub. But I really don't know.
If I'm right about the M20, and you have the puller, could you measure the thread?

Steve.
 

[militaryron]

Yes Steve I've worked on plenty of the M20 clutches and they all have an internal thread for the 1" puller. I have at least two of the pullers. I assumed that the earlier "Empire Star" single spring clutch was the same. But my parts lists only go back to 1939. Ron

PS although this is the section that interests me, my bikes are hardly pre war. I have a 1939 and 1940 models WD C10's a 1940 WB30 and a 1940 WM20. 

[Steve.S]

Thanks for clearing that up, Ron.
I suppose a Pre War motorcycle is anything manufactured before 11 am on 3rd September 1939?
If Kg has bought this puller, could he tell us if it fits?

[militaryron]

You're right Steve and both my C10's meet the criteria. (My WC10 though a 1940 model was delivered in August 39). However there is still that 1939-45 gap.     Ron