[DML] Additional Thought Re: Ignition Timing (David T)

["content22207" <brobertson@xxxxxxxxxxxx>]

Thought about this at lunch:

Because of the odd fire sequence, PRV distributor must have an
asymetrical cam driving the hall effect sensor (pickup coil). In that
respect rotor position is somewhat specific to engine position -- for
example rotation between cylinders 1-6 is not interchangeable with
rotation between cylinders 6-3. Note however that odd firing pairs
would be interchangeable (4-1 6-3 5-2). Distributor positioning is
only limited to cylinders 1 and 6 by the hold down method (stud & slot
vs clamp) and clearance for the spark advance diaphragm. Note also
that the distributor cap is keyed -- it is impossible to misorient it
relative to the asymetrical cam.

Bill Robertson
#5939









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