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Topics - cornishbeezergeezer

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Singles / B25ss Camshaft marking valve timing
« on: 17 March, 2019, 17:23:49 »
HI guys need some help, I have a 1971 bsa b25ss goldstar 250 and have had do do some engine work, when removing the inner timing cover the cam dropped out..... :-[  now this is the problem my bsa book says there should be a dash and a v mark on the cam, my camwheel has a DASH and a DOT... which are5 1/2 teeth apart..
if you place the cam so that the keyway is at 12 O'clock the DASH mark is 2 teeth anticlockwise from the centre line of the key way, and the DOT is 3 1/2 teeth clockwise from keyway centre line.
My BSA book says use the V mark which should be 2 teeth clockwise of the key way. THERE IS NO V MARK.
 so can anyone help me and tell me how i should set the valve timing... i will try to add a photo of my cam markings ....help please...

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