Kurt.
There are 360 degrees in a circle.
We have two cylinders.
The crank pins are offset 270 degrees.
If you look at it from the side there is a 90 degree difference between the pins.
Each cylinder fires once every two rotations.
The only difference between a 90 degree and a 270 degree is the relationship between #1 and #2 cylinder.
Your explanations are wrong as you seem to be forgetting that there are two cylinders involved. Hence your 720 degrees must be divided by two..720/2=360
So:
Quote:
a piston fires
the next piston fires at 360 degrees
there is a 360 degree gap
a piston fires
is BS. One cylinder fires each revolution (360 degrees). There is no 360 degree gap.
Your other examples are equally flawed.
maybe this will help:
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