texasSlick
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- Jan 2, 2013
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Bernhard said:Notwithstanding the question mark of the life of the capacitor, please check that it fires with a degree disc, whether on the engine or not, that it fires at 0 and 180 degrees exactly.
If it is out more than a couple of degrees, it can be corrected .
This condition (firing other than 0 & 180 degrees) is almost always related to the cam ring producing unequal point gap on each ramp.
First step in setting up a K2F should be to check the gap on each ramp. I have measured a 2 degree difference in firing for each 0.001 inch difference in gap. I have also experienced 10 to 12 thou differences in gap on my own, and the mags of others, which can result in over 20 degrees difference in firing.
Cam rings were notoriously mis-machined, because of old, tired, worn out machinery following WW2. Sometimes, these cam rings produced equal gaps, but the cam ramps were not 180 degrees apart.....the only way to correct such rings was to stone down the lead ramp, a procedure not recommended by modern standards. Newly CNC made cam rings are spot on, but unequal gaps occur if the ring is not perfectly centered in the housing.
Slick