Fuel injection valves should be taken out, cleaned, and lifting checked every _____.

The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to _____.

Early fuel injection timing is indicated by the cylinder pressure being ________.

After passing through the expansion valve the refrigerant should be in the state of _____.

_ should be defrosteA.The expansion valveB.The safety valveC.The fuel valve

It should be evident that the amount of fuel injected into the cylinder is dependent on th

Heat damage to fuel injection nozzles can be prevented by avoiding ____.A.excessive fuel o