Author Topic: BSA C10 1948 side valve  (Read 1379 times)

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Offline AdminPete

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BSA C10 1948 side valve
« on: November 24, 2008, 06:40:20 pm »
Forgot some thing,in setting up the ignition timing,i need to put it at TDC and then rotate back 1/32" from TDC  and the points should just be openned
how do i do that as you cannot drop an rod to touch the top of the piston on a side valve,ok on a C11 where the spark plug hole drops into the piston,but the C10 drops on top of the valves
any other way
best regards

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From: C10_11_12 Sent: 31/08/2006 12:40
The easiest way on side valve engines is to take off the head, just some nuts to unscrew (and you don't alter the valve setting as for an OHV). For easy access you'll perhaps need to take off the tank.

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From: 46bsac10 Sent: 31/08/2006 19:45
in addition to the spark plug, there is a "compression plug" (located above the piston) on a C10 head. remove this plug to measure piston travel. both the "bsa instruction manual 1938-1953" and the bsa service sheet #404 detail the procedure.