Re: Timing

["Donald H. Locker" <dhl@mrdog.msl.com>]

To advance is to cause the spark to occur earlier in the engine's
cycle, i.e. more before TDC or less after.  So if the current timing
is 0 (TDC), to advance you move it before TDC.  7 before TDC (BTDC) is
more advanced than 6, 5, 4, 3, 2, 1, 0 ... BTDC.  But 5 after TDC
(ATDC) is more advanced than 6, 7, 8, 9, ... ATDC.

HTH.
Donald.

> Am I correct in the assumption of:
> to Retard is away from TDC
> To Advance is to move to TDC