02-07-2020, 02:48 AM
(02-07-2020, 01:17 AM)m in sc_imp Wrote: you have no idea how many people i have had to explain to that points gap controls dwell. ...
I may only be 47 but since i was broke most of my early days of motoring, ive learned the 'old ways', including polishing point faces on a lathe. still have a dwell meter as well. I've used it on electronic setups on occasion. (helps verify that air gap is set correctly)
Yep, dwell is measured in rotational degrees.
And most folks did not understand that the coil discharges through the spark plug when points open.
Or that the capacitor (condenser) is dual purpose.
When points open, it absorbs the voltage, saving point wear and when points close it discharges into the coil to facilitate quick enerization.
When the capactor was out of spec (typically 0.22 microfarad) which side had the tit and which side had the valley would indicate whether it was + or - spec.
I do not really miss points, but used them in 1982 on my V8 Datsun for reliability in remote areas.
(02-07-2020, 02:42 AM)m in sc_imp Wrote: i have to disagree, especially with 2 strokes that rev to 10k and other vehicles i have, timing is key to power and efficiency (including my 390 galaxie). But to each their own.
Disagree with optimizing timing for each individual engine, with all factors taken into consideration, such as fuel, altitude and even point gap/dwell, which affects timing? Timing is "key" and most factory settings are less than optimum. The disadvantage of running timing at optimum, is having to back off timing if running cheaper fuel.