Maintenance
Pressure relief valves are used in all:
pressurized lubrication systems
When refeering to the piston strokes TDC is known as:
top dead center
Which of the following is true about blow by:
Properly installed piston rings prevent it
The piston skirt is:
on the bottom part of the piston
Piston pins are known as _ pins
wrist
The recommended interval for changing oil in small engines is:
every 50 hours
When referring to piston strokes BDC is also known as:
Bottom dead center
A faulty seal at either end of the dipstick tube can result in a loss of crankase_
vacuum
The piston stem is:
not part of the piston
The piston pin acts like a _ between the connecting rod and piston and holds the two together
hinge
It is recommended that the oil be changed after the first _ hours of operation
5
The OIL GARD system will stop the engine when the _ is low
oil level
Piston slap results from excessive clearance between
Piston and cylinder wall
The piston journal is:
not part of the piston
Piston and piston rings
Which of the following statements is not true?:
Put more oil in the crankcase than what is recommended so you will always have enough
What are two types of OIL GARD systems:
float operated and spark gap type
Blow by is:
failure of rings to seal off compression
twisted connecting rod
Piston pins are made of _:
Case hardened steel
When checking the oil level in an engine that is equipped with a oil fill plug, the oil level should be:
at the top of the plug opening
Old oil gradually becomes thick and loses its_ and _ abilities:
cooling and lubricating
The compression ratio found in most small engines is:
6:1
The part of the piston that is located above the top ring and between the ring grooves is called:
Piston lands
The piston pin is held in place by:
Spring retainers