Recent Posts

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41
Singles / Re: B31 Magneto oil seal
« Last post by DEAN SOUTHALL on 19 October, 2017, 20:24:55 »
You are correct, the seal should be fitted with the open (spring) side facing into the engine. The way I always confirm which way to install seals is to have the open side facing the higher pressure side. That way the pressure will tighten the seal.

Have you checked the location studs under the magdyno as a source of the 'rocking' ?
42
Singles / Re: B31 Magneto oil seal
« Last post by BeenyBoy on 19 October, 2017, 17:26:55 »
OK... I reckon the seal was originally put in the wrong way round so I'm going with my instinct on this one. However I am concerned that the mag doesn't sit very well on the crankcase "plinth" and actually rocks.... This cant be right surely ? It will clamp down with the strap but....

any thought appreciated
43
Twins / Re: A10 rev counter timing cover
« Last post by big steve on 19 October, 2017, 17:16:54 »
Thanks for that info I now know what it's off as it is a spare
44
Twins / Re: A10 rev counter timing cover
« Last post by STAR TWIN on 19 October, 2017, 17:10:26 »
The timing cover rev counter drive catches your ankle. Given a few years, you almost get used to it. That may explain why it was changed to an oil pump drive.
45
Twins / Re: A10 rev counter timing cover
« Last post by JulianS on 19 October, 2017, 16:04:01 »
Driven from mag up to and including 1959 season. 1960 season on from oil pump.
46
Twins / A10 rev counter timing cover
« Last post by big steve on 19 October, 2017, 15:46:36 »
I have a A10 timing cover with what looks like a factory rev counter mounting adjacent to the mag drive,
I thought they picked up a drive from the oil pump can anyone enlighten me.
47
Singles / B31 Magneto oil seal
« Last post by BeenyBoy on 19 October, 2017, 14:51:32 »
Hi guys

Partway through a B31 rebuild and come to refit the magneto; I've put a new oilseal in the housing - my gut instinct says spring/open side  to the inside- ie towards the pinion or into the timing chest...  but when I've peeled the old seal off the pinion its fitted the other way round- ie spring towards the magneto.

Which is correct ?

 :)
48
Which BSA do you ride? / New on here 62 Goldie 500
« Last post by big steve on 19 October, 2017, 12:47:39 »
Hi new on here just bought a 62 Goldie and a load of spares that I need to identify.
49
Singles / Re: B44, Bigend, Piston. Bad vibration.
« Last post by DEREKANDERSON8 on 18 October, 2017, 19:24:50 »
I have shipped my crank to Alpha for replacement and balance.
Mick

I take my hat off to you mick! you certainly don't mess around when you have a problem to deal with, from having a bad vibration to the crank being sent to SRM for repair 4 days have passed!

Excellent I hope you keep us posted  :D

regards

derek
50
Singles / Re: B40 Swinging arm and a few questions.
« Last post by JulianS on 18 October, 2017, 18:16:10 »
The tube should be a tight fit and when assembled the nut and bolt needs to be quite tight or the handlng may suffer. You may be able to drift it out with care.
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