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heavy carbon deposits will buildup on the valves and in the exhaust fuel dilution is increased at low load exhaust valves may be damaged all of the above
cylinders exhaust valves pistons fuel valves
insufficient refrigeration leaky suction valves expansion valve stuck open suction valve not adjusted properly
clogged air filter compression stroke burned exhaust valves all of the above
(1)+(2) (1)+(3) (2)+(3) (1)+(2)+(3)
Hot bearing Starting valves Unequal distribution of load Excessive crankshaft clearance
starting air pressure too high correct timing of starting air valves three of the six starting valves stuck the turning gear disengaged
starting air pressure too high correct timing of starting air valves three of the starting valves stuck the turning gear disengaged
low exhaust temperature loss of engine power burned intake valves engine racing
the beveled edges of the intake valves provide for serf-centering during seating intake valves utilize stellite-coated valve seat inserts which reduce wear the volume of air passing through intake valves is less than the volume of air passingthrough exhaust valves intake valves are less affected to the corrosive action of exhaust gases
overfeeding of the expansion valve damage to the condenser constant running of the compressor flooding of the receiver
later and close sooner sooner and close later sooner and close sooner later and close later
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