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Messages - chrisgoodwin

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Singles / B31 chain case
« on: 23 May, 2018, 23:41:08 »
Hello again,
The B31 is ready for the road but I am having problems with sealing the primary chain case.
At present I have a cork gasket greased well and the chain case set screws nipped up tight but she leaks like a sieve.
Time to ask for advice on how best to seal the damn thing, back in the day it was red hermie but I suspect things have moved on.
There seems to be a myriad of silicon gasket goos on the market, can anybody suggest a good sealant?

Singles / Re: M33 / B33 plunger side stand
« on: 04 February, 2018, 22:15:08 »
No, Just nipped it up with the two bolts, just watch that you give enough clearance for the drive chain when fitting.

Singles / Re: 1950 B31 Saddle
« on: 07 January, 2018, 16:46:15 »
Hi there,
I have a rigid B31 and I think the Small Lycet seat is the one to use

Singles / The big boot
« on: 29 December, 2017, 01:20:46 »
Hi all,
Like the very similar post by Gusmagicbus, I am almost ready for the first boot.
A few questions if I may regarding a '53 B31.
Engine oil, I was thinking old school straight 40? (is it still available?)
Gearbox, again straight 90?
Finally, what spark plug would you recommend? I know the official Champion and NGK numbers, but I wondered if others experience told a different story.
As always, I would appreciate your advice.

Singles / Re: B31 competition exhaust
« on: 26 November, 2017, 21:22:51 »
Perfect Julian! Just the look I'm after. I'll start trawling the interweb.

Singles / B31 competition exhaust
« on: 26 November, 2017, 20:49:32 »
Good evening fellow Beezerists,
I am in the final stages of getting the old girl back on the road again, I'm afraid its another Bitsa, 1948 rigid M20 frame married to a 52 B31 - I prefer to call her an M31!

It's all original parts, but quite frankly I have never liked the look of the standard B31 exhaust system, and as it a hybrid and could never be compared with an original machine I have some leeway to experiment.

I really fancy the idea of a high level exhaust, but am not sure if the competition system will bolt straight on. I have average mechanical skills but no access to welding equipment.

My question is has anybody fitted a high level system to a rigid B31?  If so, any description and / or photo's of the mounting brackets would be really appreciated.
Thanks in advance,

The Star and Garter / Re: Short intro.
« on: 08 November, 2017, 13:40:45 »
Welcome, and don't be afraid of asking silly questions, I often do - there really is a wealth of knowledge in the club.
Best tip I can give is collect a decent set of imperial spanners - open ended and ring and a decent metric socket set has also come in very handy.
Good luck

The Star and Garter / Re: How to resize photos for forum posting.
« on: 23 October, 2017, 18:47:54 »
Google "Free Picture Resizer" Its free, simple and works a treat

Singles / Re: B31 Manual Advance/retard
« on: 12 October, 2017, 12:34:12 »
As ever, thanks for the info, looks like mine is indeed a tight wire advance, could be a pain in the a%*e if the cable snaps!

Steve, it's going well, engine complete as are the oil lines, the mag is on the bench being 'looked at'. Forks are ready to go on and the plan is to have a rolling chassis next month


Singles / B31 Manual Advance/retard
« on: 11 October, 2017, 15:48:11 »
Hi All,
I wonder if anyone can help with this question.
I have a Lucas MO1 Magneto with the advance/retard cable housing on the left hand side (Looking from the drive end) Right hand side (When looking at the points)

I think that this is a tight wire advance set up and the timing should be set with the cable slack (Retarded) and the lever operated to advance the timing for normal riding.
Please see attached pic, not my mag, but lifted from a flea bay page.

I'd appreciate it if someone can confirm it is a tight wire advance.


The Star and Garter / Re: Engine running.
« on: 26 September, 2017, 23:15:34 »
Hope you sort it soon, don't give up.
My advice is Spark, Timing, Fuel. Check and more important double check.
If it's sparking and the timing is OK, is there fuel?
Is the plug damp?
Have you blown the jets out?
Is there decent compression?

Good luck

The Star and Garter / Re: Ebay scammer delves into pre-war BSAs
« on: 21 September, 2017, 12:32:41 »
However I would like to think that some very lucky guy gat a super deal "1931 Sloper and chair fully restored by my deceased father in law" 4500 buy it now.......

I can see the headlines now, "Dead man re-builds bike"

The Star and Garter / Re: Lidl Tools
« on: 19 September, 2017, 22:47:37 »
yes quite noisy, and for maximum effect I find 10.30 PM quite productive  ;D

Singles / B31 Engine sprocket shims
« on: 17 September, 2017, 21:32:36 »
Hi all,
I need some advice (again) & I wonder if anyone out there can help.

I need to align the engine sprocket to the clutch chain wheel and I am looking for some suitable shims. I can see shim kits for an A7 and I suspect they would also fit the B31, searches for specific B31 aligning shims seems to draw a blank.

Does anyone know if the A7 shims would fit, or where I could obtain specific B31 shims.

I have a 4 lobe spring shock absorber and I think I need to move the sprocket out about 30 tho (ish)

Thanks in advance,

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