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Question: problems 15...

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57 Engine Components the crankshaft from moving endwise in an engine? 3.22 What prevents PROBLEMS P3.1 Measurements during an engine overhaul show the cylinder bore at the top of ng travel is 120.72 mm (4.7528 in.) parallel to the crankshaft and 120.87 mm (4.7587 in.) perpendicular to the crankshaft. The cylinder bore at the bottom of ring travel is 120.80 mm (4.7559 in.) perpendicular to the crankshaft. (a) Calculate the cylinder taper (b) Calculate the out-of-roundness. (c) According to the general guidelines, should the cylinder liner be replaced? Why? P32 A six-cylinder engine has a 127.0-mm (5.00-in.) stroke and a 107.9-mm in.) bore. According to engine specifications, the compression ratio should be 15.5:1. While overhauling the engine, the mechanic inadvertently installs a (4.25- head gasket that is 1 mm (0.039 in.) too thick. (a) Calculate the displacement of each cylinder, the clearance volume (V2), and the maximum volume (V1) of each cylinder. (b) multiplying the area to both Vi and V2.) (0.039 compression ratio.) compression ratio as 7:1 Calculate the compression ratio of the engine with the thicker head gasket of the cylinder bore by the extra thickness of the gasket. In ting the new compression ratio with Equation 2.10, the AV must be added 3.2, but assume that the mechanic installs a gasket that is 1 mm in.) too thin. (Hint: Calculate AV as in the hint in PS.2, but this time, subtract AV from both Vi and V2 before using Equation 2.9 to calculate the P3.3 Rework P ework P3.2, but assume that the specifications for the new engine give the rs3 Rework P3.3, but assume that the specifications for the new engine give the in a spring can be calculated by multiplying the spring rate times the P3.4 compression ratio as 7:1. P3.6 The force Problems 1-5
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