A.alternation of side thrust
B.a breakdown of the lube oil film on the cylinder wall
C.worn piston boss piston pin bearings
D.fluctuating gas pressure in the combustion space
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A.hard starting
B.excessive fuel consumption
C.loss of power
D.all of the above
A.provide added wear protection against today’s corrosive quality of fuel
B.increase overall valve strength due to the high gas pressures
C.assist in dissipating heat due to the extreme operating temperatures
D.reduce the overall weight of the valve thus helping eliminate valve spring surge and hammering
A.Excessive piston to liner clearance
B.The underside of the piston crown being excessively dirty lowering the rate of heat transfer
C.Faulty nozzle spray
D.All of the above
A.improve skirt lubrication
B.allow for expansion
C.transmit forces evenly
D.improve the piston seal
A.Hard alloy steel construction
B.Beveled edges on the valve head
C.Low alloy steel construction
D.Poppet type design
A.a leaking seal ring
B.heat transfer from exhaust valves
C.restricted cooling passages
D.overheated intake valves
A.top of the ring groove
B.back of the ring groove
C.bottom of the ring groove
D.piston ring end clearance
A.oil rings only
B.compression and scraper rings
C.cylinder liner sealings
D.cylinder liner ring grooves
A.wrist pin bushings
B.compression rings
C.cylinder liner seals
D.cylinder liner sealing ring
A.Gasoline
B.Water
C.Lubricating oil
D.sulphur compounds
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