The pushrods that actuate the valves on a six-cylinderengine are SAE 1040 steel and are 625 mm long and 8.0 mm in diameter. Calculate the change in length of the rods if their temperature varies from −40°C to +116°C and the expansion is unrestrained. If the pushrods were installed with zero clearance with other parts of the valve mechanism at 25°C, compute the following: a. The clearance between parts at −40°C b. The stress in the rod due to a temperature rise to 116°C
The pushrods that actuate the valves on a six-cylinderengine are SAE 1040 steel and are 625 mm
long and 8.0 mm in diameter. Calculate the change
in length of the rods if their temperature varies from
−40°C to +116°C and the expansion is unrestrained. If the pushrods were
installed with zero clearance with other parts of the
valve mechanism at 25°C, compute the following:
a. The clearance between parts at −40°C
b. The stress in the rod due to a temperature rise
to 116°C
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