Engine Repair (A1)第 6 / 120 题
A mechanic measures cylinder taper by comparing bore diameter at the top of ring travel to the bottom. This measurement is taken with a:
a.Feeler gauge
b.Dial bore gauge or inside micrometer
c.Vacuum gauge
d.Compression tester
解析
Cylinder taper and out-of-round are measured with a dial bore gauge or inside micrometer at several points in the bore. Wear is greatest at the top of ring travel where combustion heat and pressure are highest. Excessive taper requires boring and oversize pistons.
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