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Singles / B44, Bigend, Piston. Bad vibration.
« on: 13 October, 2017, 10:24:38 »
My B44 vibrates badly on a light throttle opening, opening to accelerate stops the vibration,
closing throttle to overrun stops it as well. This is most noticeable at high RPM.
So bad, bits are dropping off or breaking.

I thought it must be bigend play, or possibly smallend or mains.
I have stripped the top end this morning.
No play to be found at all. I  cant mend something if it aint broke!

I wonder about balance factor?  The piston is 71/798, 1/2 mm oversize. It looks quite normal.
I see bsa part numbers. 41/794 standard, 41/795 + 10 thou, 41/797  + 20 thou (1/2mm)

The engine is not loose in the frame. I cant think what it can be.
I will order a new rocker gasket, and rebuild when it comes.
Any suggestions? Do they ALL have this fault??

Singles / Re: Victor Special Tank
« on: 13 October, 2017, 05:58:48 »
I tried a C15 tank. it is too long to fit.
I would like to try a c25 tank, one of the larger volume ones,
 but they are hard to find, and expensive to try.

Singles / B44Tank 2
« on: 12 October, 2017, 09:38:54 »
Second page

Singles / B44 change of tank
« on: 12 October, 2017, 09:37:07 »
Four photos
1. My B44, small alloy tank, 1.4 gal.
2. With C25 tank, 2.1 gal.
3. added home made badge
4. with C15 3 gal tank, WONT FIT.

Singles / Re: Victor Special Tank
« on: 11 October, 2017, 18:40:15 »
Have heard that one make of tank protection varnish for glass tanks, is no good.
Anyone recommend a good one?

Singles / Re: BSA B50 MX issues
« on: 10 October, 2017, 16:49:34 »
Where are you?

Singles / Re: B44 gearbox
« on: 10 October, 2017, 06:12:57 »
I had a bantam which would jump out of top gear.
I found the pins or dogs (what do you call them) were slightly rounded on the ends.
I ground away the edges to make the corners less rounded. only took of about 1 mm on each.
That was successful.
My B44 threw loads of oil out by the sprocket, after I overfilled the primary case.
When I discovered where the level screw was, the leak was cured.
I'm at PE15 9PR.
How can I upload a picture of mine?

Singles / Re: B44 gearbox
« on: 09 October, 2017, 15:30:02 »
you dont say where you are!

Singles / Re: B44 oil leak
« on: 09 October, 2017, 06:54:49 »
photo third attempt

Singles / Re: B44 oil leak
« on: 09 October, 2017, 06:51:00 »
Tools set.Mick

Singles / Re: B44 oil leak
« on: 08 October, 2017, 20:51:40 »
I have just done my second ride, about 40 miles. Outward, following Bantams at 30 MPH
Return, alone at up to 80 mph.
I found an oil leak was apparent. It was from the gearbox filler at the top. Strange?
The vibration was great. I lost the heat shield from the silencer, one headlamp bolt,
and my complete toolkit which was strapped on the rear mudguard.  About 50 pieces.
I managed to replace the lot today, from the boot sale.

Interesting point.
I want to keep the weight and cost down. For many jobs on a bike (Say engine bolts)
you need two spanners of the same size. Most new spanner sets come with the same size each end, so you would need to buy two sets.
I found Whitworth open end spanners with different sizes each end. Short ones for weight and space saving.
Photo shows chain lock, Black tape and plastic ties.Carrier tray is cut from a 5 litre plastic bottle. Red spray shows that they are whitworth.
I use yellow for metric and blue for AF types.

Singles / Re: Victor Special Tank
« on: 08 October, 2017, 20:35:46 »
I have found that the glass C25 style tank I bought fo 50 fits the B44I just need to repaint it.
I will also try fitting my C15 larger tank and see how it looks.

Singles / Re: Victor Special Tank
« on: 30 September, 2017, 07:13:13 »
I also have just bought a B44 VS with the small alloy tank.
Yesterday I emptied the full tank into cans, then, by weighing, worked out the ammount.
!.4 gallons.
I also do not like the look of that tank. It does not fit the bike. it looks like a poor substitute,
fitted to save weight for scrambles racing.
I wanted the look of the C25 and similar.
Apparently, most of  the BSA tanks with centre bolt fixing are interchangeable.
Trouble is - the C25 tank is also of low capacity.
i have bought a glass one on ebay. I will check the fit and tank size when it comes.
It may be that another model of tank would suit. A65? or what?
The high cost of tanks make it difficult to find the right one.
What we need is a club where members could help each other in these sort of questions.
But living close by.

Can any member here give advice. - B44,- 3 gallon tank??

Singles / shuttleworth vintage event , sunday 1 st Oct
« on: 29 September, 2017, 17:00:18 »
Any members going?
I would like advice on my B44 VS engine sound, does it need new bigend.

Singles / Re: b44 speedo
« on: 29 September, 2017, 16:57:36 »
Is there a cheat way to reset?
Ive tried poking in various tools (gently), but no result.

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