<VV> RE: Engine miss with rapid tach movement

VairMech@aol.com VairMech@aol.com
Wed, 12 May 2004 08:00:20 EDT


In a message dated 5/12/2004 12:24:53 AM Eastern Standard Time, 
dsjkling@sbcglobal.net writes:
The miss is intermittant and it occurs at random.  Sometimes
it is barely noticable and all but goes away.  It is accompanied by the tach
needle moving, sometimes as much as 400-600 rpm but the engine itself isn't
changing speed that rapidly.  It doesn't seem like this would be on the
output side of the coil but since I already tried the cap and rotor, I may
try plugs and plug wires.  If that doesn't fix it, then maybe the
distributer itself is not as good as I think it is.
>>>>>>>>>>>>>>
    That sure sounds like point bounce. Try closing the gap on the points and 
also check the play in the pivot point of the points plate. A very worn 
points plate will cause something like this as will a weak spring on a set of 
points or the points set at to big of a gap.
    Ken Hand