Recent Posts

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71
Singles / Re: B44, Bigend, Piston. Bad vibration.
« Last post by ANDY HIGHAM on 17 October, 2017, 18:16:12 »
Not quite. The piston assembly and the top part of the rod is reciprocating mass, the lower part of the rod is rotating mass. Also, is 58% correct or just what was thought to be correct 50 years ago?
72
Which BSA do you ride? / 1958 A10
« Last post by JOHNSTONE on 17 October, 2017, 17:43:00 »


Just got my 1958 A10 running smoothly so I thought I would post a Photo of it.                                                                                                            However I am no sure I have done this properly. 
73
Twins / Re: A7 ST plunger 1952 - Clock
« Last post by ANNIS on 17 October, 2017, 16:31:09 »
Thanks for the thought, but at present Smiths don't seem to make a clock.
I have been in contact with them and no nothing available.
Suspect my recourse will be either to one of the helpful folks on the forum, or the dreaded flea bay.
74
Singles / Re: B40 Front Hub
« Last post by MICKREEVES on 17 October, 2017, 16:17:43 »
It would be nice know what sort of prices are quoted for both ways!
I think rims are about 100 each, And sets of spokes near to that??
Mick
75
Twins / Re: A7 ST plunger 1952 - Clock
« Last post by STAR TWIN on 17 October, 2017, 14:31:27 »
I suspect the nearest you will get is the Smith's 8 day chronometric clock. A fine match for the chronometric speedometer and handy for these longer rides...
76
Twins / A7 ST plunger 1952 - Clock
« Last post by ANNIS on 17 October, 2017, 11:21:56 »
Trying to find a competition clock to mount alongside the speedo. This to match the setup on the Maudes trophy winning MOL303. I have checked with the National motorcycle museum who has MOL303, but there is no identifying names or numbers on their clock, so I'm struggling.

The clock is black surround and slightly smaller than the speedo, has a 12 hour dial with a reset/timer needle.
Any ideas or suggestions please?

77
Singles / Re: B44, Bigend, Piston. Bad vibration.
« Last post by MICKREEVES on 17 October, 2017, 10:34:19 »
I have stripped the engine.
I dont think a new bigend was really needed. There is JUST perceptable movement.
Now I have it stripped, I will fit a new alpha bearing.
I suppose the whole job was a waste of time and money, but I still want to get rid of the vibration.
I might try making a weight, 58% of the rod and piston (is this correct? ) Then drilling the flywheels as needed.
Mick
78
Singles / Re: B44, Bigend, Piston. Bad vibration.
« Last post by MICKREEVES on 17 October, 2017, 10:27:23 »
answering my own question!
I checked again.
Gripping the piston with both hands, push up and down, moving around and sideways.
Finally found a point where a very small amount of play was felt. Enough to hear a small click.
Im guessing that that is the answer?? ANY play is not acceptable??

Suggestions for a good supplier for replacement bearing please.
Mick
79
Singles / Re: Newbie, introduction and matching numbers question
« Last post by Totus on 16 October, 2017, 14:32:38 »
Thanks for the link

Brian
80
The Star and Garter / Re: Shooting Star
« Last post by DEREKANDERSON8 on 15 October, 2017, 15:25:49 »
I dont think you would struggle to sell it on if you put an ad on here, british bikes seem to be going mad at the moment!
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