Why can't a typical ICE continue to rotate at less than 300 rpm, when it can be started with just a few rpm?
I think its a combination of rate of compression, friction resistance, inertia, weight and even gravity to reach all cycles/strokes> intake, compression, power and exhaust. The cranshaft will need momentum.
Cranking takes a few rpm(powerfull turns) but it has to overcome all the combinations stated above. Once a four cylinder engine starts to fire 1 piston adds power to the cranshaft every 180 degree turn of the crankshaft or 720 degrees for a full cycle of all 4 strokes or all 4 pistons fired. When i was still in school we were taught the importance of running mates, firing order, 4 strokes and what the piston position based on its stroke. Nakakalito sa start but you really have to learn it especially when you start adjusting valve clearances.
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February 1st, 2008 08:01 PM #10Last edited by 4JGtootsie; February 1st, 2008 at 08:50 PM.
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