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Topics - sidewaysid

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Singles / B31 Mainshaft
« on: 12 April, 2018, 17:02:54 »


Anyone help with a decent one of these B31 Lightweight box.



Singles / Gearbox Help needed
« on: 09 April, 2018, 08:12:07 »
I have managed to find a gearbox for the B31, it is the type i wanted from that era, i need to strip it has the gear selector is solid, but when I eventually removed the outer casing, I thought maybe something was missing, can someone in the know put me right, also any advise as to do's and dont's

Thanks Lads

Singles / Lucas 6" Headlamp
« on: 31 March, 2018, 07:28:10 »

Can anyone tell me where I can obtain the rubber sealing ring for one of these 6 inch Lamps.

Thanks Guys

Singles / B31
« on: 31 March, 2018, 07:05:34 »

Wow I can now post pictures, this is the B31 I am building, later i will post problems i have.

Cheers guys

Singles / B31 front wheel spindle
« on: 30 March, 2018, 14:54:34 »
Hi Guys
The bike i am building is based on a 1947 frame, the forks came with the frame, they are tele's, also with it came the front wheel spindle, and this had a sleeve over it at one end, the spindle has a L/H thread, I purchased some other parts to complete the hub, these i got from Draganfly, and from the exploded diagram it looks as if this was what was required, well it seems I was wrong! The front hub I have has bearings held in by threaded discs (don't know the term) but can anyone throw some light as to what else is needed to make up the hub, I have a 7" brake plate that located on the small round boss on R/H fork leg, but i cannot seem to find what holds the brake plate on the spindle, am I working with odd parts ??? can someone show what should fit on the spindle.

Tearing my hair out yet again Ah ah ah

Thanks in advance.


Singles / B31 Gearbox question
« on: 29 March, 2018, 16:31:53 »
Would there be anyone in the know who is able to tell me...would the internals of a 1940s B31 box fit into a casing from a 1938 bike, physically to main casing is the same, lugs to frame plates all match up. The casing number on the 1938 box which I have is 65-3394 and the casing from a 1949 B31 seems to be 66-3141. I am sure the speedo drive is different, but I have no idea if all the other parts from a later box go into the casing...any advice .



Singles / T14 piston in B31
« on: 28 March, 2018, 19:51:19 »

I am sure it was on here that someone advised putting a T140 piston into a B31 to increase capacity, and they also advised a 2mm base plate..who could it be. I forgot. and i want to ask...

Singles / Pattern Mudgaurds
« on: 27 March, 2018, 17:58:28 »
Can anyone say if the pattern guards on ebay from India are any good, or are they really awful.


Singles / Smiths speedo
« on: 21 March, 2018, 19:16:56 »
Hi Guys
I am building a 1947 B31, Rigid frame etc, I have a petrol tank for the bike, it's the one with the speedometer in the tank, can anyone tell me which Smiths unit was used during this period.

Cheers guys

Singles / Stainless parts for BSA
« on: 14 March, 2018, 18:58:23 »
Hi Guys
I used to go to Lightning spares in Sale every Saturday for basic stainless nuts,bolts, studs etc, but since Brian packed it in I am lost, does anyone else manufacture BSA parts in stainless...thanks in advance guys.


Singles / B31 Rigid Dating
« on: 04 March, 2018, 16:23:12 »
Hi Everyone

How do I go about finding the true year of my newly acquired frame, it seems the guy told me it was 1946/47 but according to some parts in BSA books it seems more 1959 which would be better as my motor is 1950 (I think)

Thanks Guys

Singles / B31 Rigid frame help needed
« on: 04 March, 2018, 14:11:36 »
Hi Guys

I still cannot post pictures, I am on other sites and it works perfect, but that is not my reason for being here, I have now purchased a 1946/47 rigid frame for my 1949 B31 motor, I got it home and up onto the bench, offered up my crankcases (I got engine plates too) the front plates fit good, all holes line up, but the rear plates the guy gave me don't look right at all, these are the long plates that also hold the gearbox in situ, if I marry up the plates to my cases, and then into the frame it leaves the far rear hole a mile out, it simply won't fit, so can anyone tell me are there different plates for years ??

Cheers Guys

The Star and Garter / Posting pictures
« on: 26 February, 2018, 17:21:41 »

I have just tried to post 2 images from my photobucket album, only one showed, and then that seemed to vanish, can you tell me if i open the insert image option, then in between the (IMG) brackets I paste my image URL..does this work

Singles / B31 head onto B33 Barrel
« on: 20 February, 2018, 17:11:24 »

I'm sure Andy Ingham can put me straight. I have a B33 barrel and piston but my B31 head won't quite fit, would it be fine to turn a little out of the diameter (it's only about 2 mm) is this common practice ?

Singles / Tappet Guides (silly Predictive)
« on: 17 February, 2018, 16:19:04 »
Sorry about that guys, I meant Tappet guides, how do i get the tappet guides out of the timing side crankcase, I see they have a square on them, and the drwing in the spares book seems to show a thread?, any help would be most appreciated.  :'(

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