Re: prestolite dist springs
I'm sure that Mr. King, Mr. Allen and Mr. Sun all began with something very similar to that.
You can acheive the same results on-egine by using a full array of degree markings on either the flywheel or the harmonic balancer.
The timing light can just as easily read #2, 3, 4 thru #8 cylinders, as it can #1.
In fact, you could strobe using the high tension coil wire for the timing light triggering sensor, and probably strobe all 8 cylinders.
But... these guys wanted an easy method for watching, plotting, adjusting, etc.
And what better way than to have the distributor at bench height right in front of you, full RPM control, etc?
Stop... reach in... adjust... start..... watch... stop/adjust again, etc.
These men were truly pioneers in this industry.
Rick ... aka Ricardo
28' SDN F/B w/ twin Volvo Penta 5.7L DP's