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Four Stroke Diesel Engine Review
In a four-stroke engine the camshaft is geared so that it rotates at half the speed of the crankshaft. This means that the crankshaft must make two complete revolutions before the camshaft
will complete one revolution.
The following section will describe a four-stroke, normally
aspirated, diesel engine having both intake and exhaust valves
with a 3.5-inch bore and 4-inch stroke with a 16:1 compression
ratio, as it passes through one complete cycle.
We will start on
the intake stroke. All the timing marks given are generic and will vary from engine to engine. Refer to the following links:
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