How not to B33!

[Dan_B33]

I beg you pardon for my ignorance but is that available anywhere on-line?

[Rog1]

I beg you pardon for my ignorance but is that available anywhere on-line?

The article isn't but you can buy a digital copy of the magazine or maybe an actual copy here:

https://classicmagazines.co.uk/issue/View/issue/CBG202401/january-2024

I presume that's the right one; the January issue.

[Derek996]

There are few glaring mistakes in it - not mine! How the hell can you lengthen valve stems? 
It's been stripped down again this winter and being put back together with a genuine ZB32 9:1 piston so no need for the compression plate, the inlet valve guide has been sleeved and a pair of Clubman's cams go in but I'm waiting on a set of ZB32GS valve springs that I've sourced to go with them.

[Dan_B33]

Sounds awesome! I will go for digital version to read an article!
Keep on rolling Derek.

To cheer up my longing for a ride I have taken my wife's CB 250 (1973) for a spin today

[Dan_B33]

Hi, anyone used this clutch plates:
AEspares Zestaw cierny sprzęgła 5 sztuk BSA C10 C11 B31 B32 B33 A7 A10 M21 M33 https://amzn.eu/d/4Km3rQH
AESpares

[neil1964]

No, they look ok and AE generally make/sell on good stuff (I worked for them many, many years ago) these are made in India which might be an unknown quantity.

I use genuine Surflex plates with my Gold Star 6 -spring clutch and this far have been very pleased with no drag/no slip, but I have been 'running in' as it is a new ABSAF 600 motor.  I've got old style cork plates for my B34 off-roader but not finished the build yet.

Would be interested to hear if the AE ones are any good as they come out at just over £50 a set plus postage.

[Dan_B33]

Yep, is here to think twice since price difference on suflex and nonsuflex I almost 100%.

[Dan_B33]

Hello, I have came up with that idea to solve the problem of adopting distributor ready case to magneto.
My son made me kind of a steel plate. See the picture.
Now I have to level the platform on which rests the magneto. It is not smoothly leveled and has no grooves.

[neil1964]

There is a thread on Britbike Gold Star forum that discusses mag platforms in detail. I was fortunate as my ABSAF is new and my BB32.GS bottom end had the platform welded and recut by Phil Pearson when he did its rebuild for me.
Hope this helps, if you don't want to read whole thread it is around pages 38-40.

[Dan_B33]

Thanks Neil,
Link is not working for me but the drawings will come handy.
Curious on how to take/throw the center/symmetry line of a Magneto into the stand?
Is that 90 degrees for the symmetry of a timing hole to to the platform? Shall be easy then.

[Dan_B33]

One question about main bearing..tis MRJA 7/8 I have to source from UK. For teh other two we have them in Poland. Not sure if N305 shall be with C3 tolerance or not ?

Cheers

[Dan_B33]

I have noticed a free play on the mainshaft in the Gearbox .
How to fix that problem? New mainshaft? Or just a bearing or bush on the other side?

[Derek996]

Looks like play in the output shaft sleeve bush. Item 108 in the attached drawing, part no. 15-4120. It fits inside the sleeve gear, item 107. Your gearbox is basically the same as the M20 gearbox and I'd think the M20 parts would fit although the part no. is different. Failing that, any good engineering workshop shut be able to replace the sleeve for you.

[Dan_B33]

Many thanks Derek! Owe you pint! I will have look to source that part in UK....

[neil1964]

Typically for main bearings I would not go C3 as you will likely get rumble from the off.
Pretty sure std type is spec