[AT] Starting Issue with MH Pacer

Alan Riley arr44 at suddenlink.net
Mon Sep 1 22:39:45 PDT 2014


Incorrect point gap will affect ignition timing.  When the points open 
with respect to crankshaft position determines when the spark is 
delivered to a particular plug.  Point gap determines the location on 
the ramp of the distributor cam lobe at which the points open.  

If they open further down the ramp from the peak of the lobe than
they should, then ignition timing is retarded since the crankshaft 
has rotated an additional amount before the spark occurs. 

Conversely, timing is advanced if the points open nearer to the 
peak of the lobe than they should.

Alan








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