Port problems-when cold can you flow. (Junior Division).
The purpose of this research was to see the effect of different
temperatures and different weights of oil on moving through ports. The
three types of oil used were 10, 30, and 50 weight, they were tested at
four different temperatures 0, 32, 45, and 65. A viscosity test was ran
on all three weights of oil at room temperature to compare the density
of the oils. The result shoved that the 10 weight oil was the thinnest
and the 50 weight oil was the thickest. A model engine was built to test
oil flow through ports at different temperatures. Three holes 3/16 inch
each were drilled into a plate of aluminum. In testing each weight,
100ml of oil was added to the upper chamber and drained through the
ports into the reservoir below. A stop watch was used to time from the
first drip to the last drip. 10 weight oil drained the best in all four
temperature tests. I discovered that when it is cold outside a lighter
weight of oil will flow through the engine easier and quicker.
Karl Mertens, Merino Junior High School