1. A straight line is measured in distance...except when it represents 180 degrees, or a multiple thereof.
2. NORMALLY the piston travels in a straight line...EXCEPT when allowing for thrust forces acting perpendicular to the direction of piston travel.
3. NORMALLY crankshaft rotation is measured in degrees. Distance measurements of crankshaft rotation would vary wildly, depending on distance from the rotational axis from which the measurement is taken.
4. Since all terminals in a distributor cap are [theoretically] equidistant from one another, if cylinder #1 fires at 10 degrees BTDC, each other cylinder should also be firing at 10 degrees BTDC.
5. TDC of the piston is at the same crankshaft position it always was, regardless of cam timing.
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Today's Featured Article - Box Plow Blues - by Tom Schwarz. One of the first implements most tractor owners obtain is the box plow. For very little money, this piece of equipment promises to plow and flatten any hill or vale on your ranch road or farm. At least that's what I thought! As simple as a box plow appears, it can be rather challenging to make work correctly. In our sandy soils of Florida, traction is king. You can never have wide enough tires or heavy enough weights to get all the traction you want … unless you own a monster tractor. U
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