In order to reverse the rotation of a two-stroke/cycle loop scavenged, direct reversing, propulsion diesel engine, the cam positions must be changed for the __________.

Correct Answer: Option A — starting air and fuel pumps

Reversing a direct-reversing loop-scavenged two-stroke propulsion diesel requires changing the timing of both fuel injection and starting air admission events. Since loop-scavenged engines do not utilize camshaft-operated exhaust valves, only fuel and air cams shift.