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Messages - Pete C

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Singles / Re: M20 Oil Filter
« on: 21 June, 2018, 13:37:39 »
here's one I made earlier  :-)

sorry the pics are so big!

Singles / Re: Wheel bearings
« on: 20 June, 2018, 11:28:01 »
If you are going to use Simply Bearing then specify a named brand such as SKF. Their classification "Brand / Quality: EU Budget - Economy Quality" does not imply that the bearings are of EU or european origin. I bought some a while back and on querying the quality was advised by them not to use them in safety critical applications such as wheel bearings.

You get what you pay for and if you use the sealed bearings you can fit and forget which has to be worth something.


Singles / Re: M20 Oil Filter
« on: 20 June, 2018, 11:22:08 »
There is a felt filter but this is also in the oil tank


I think the gauze filter on the outlet pipe of the tank is then omitted on the M series bikes.

If you use a cartridge type filter it must go on the return side so that there is presure on the oil going through the filter.

Singles / Re: B31 6 spring centre
« on: 17 June, 2018, 07:24:40 »
If you have the 1946-48 gearbox then the mainshaft is different (shorter) to the prewar and later models.
Although you need a 6 spring type clutch sleeve this is different to those fitted to the other gearboxes.
Sorry I donít know the part number.
Good  luck!


Singles / Re: m21 sidecar brackets
« on: 01 June, 2018, 06:01:56 »
Thanks (sorry for not replying earlier!). Yes a bit further way than  I can probably expect him to travel. Thanks anyway!

Singles / Re: New to me 48' B31, well almost
« on: 17 May, 2018, 12:08:38 »
I don't think that tank will fit his B31.

From his photos it looks like the same one as on my 1948 B33

Singles / Re: Advice on a B31 please
« on: 04 May, 2018, 12:46:16 »
I've had a B31 (Plunger) for some 14 years now and it never fails to bring a smile to my face. Easy to ride and work on.

 Good luck!

(with a little work you can get the brakes to work well!)


Singles / Re: m21 sidecar brackets
« on: 04 May, 2018, 12:41:44 »
I could use them but I'm in Germany.
Where are you? If it's close to Birmingham I might be able to persuade my brother to pick them up.  Of course that will then cost me a curry and beer next time I am in Blighty!


Singles / Re: M20/M21 block
« on: 01 December, 2017, 05:54:24 »
same in my parts book..I stand corrected  :-X

I have an M21 on which I think someone has previously opened the inlet out a little to suit the carb as it is more than 1" diameter.


Singles / Re: M20/M21 block
« on: 30 November, 2017, 13:09:50 »
I think they are different but only in the size of the inlet port. As you noted the carbs are slightly different sizes. A definitive answer can certainly be got from the kindly folks on the WM20 site forum at:


Singles / Re: B31 stand
« on: 28 November, 2017, 18:23:05 »
I'm a bit late reading this thread!

Andy 1953, what Enfield side stand have you used? I have a rigid B33 and the usual clamp on aftermarket jobs don't fit (no problem on the B31 plunger I also have). Something that fits to the front plates would be ideal. I have no problem making up spacers etc


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