Engine Lower End Ch 29-33
Typical jounal-to-bearing clearance is ________.
0.0005-0.0025 inch
A 4-cylinder engine fires one cylinder every _____ degrees of crankshaft rotation.
180
Carst iron has about how much carboon content?
3%
A forged crankshaft has __________.
A wide parting line
Connecting rods should be weighted and balanced ________.
After reconditioning
An engine block should be machined in which order?
Align honing, block decking, cylinder boring
Piston ring gap should only be measured after ________.
All cylinder work has been performed
The space behind the ring is called ________.
Back clearance
Piston and connecting rods can be ground from what area when removing weight?
Balancing pad
A bearing shell has a slightly larger arc than the bearing housing. This difference is called ________.
Bearing spread
which of the folowing is not reciprocating weight?
Big end of a connecting rod
a bedplate is located between the ________ and the ________.
Bottom of the block / oil pan
Why is it recommended that a new camshaft be "degreed"?
Cam gear locating pin position could be different / Because of camshaft grinding variations / Due to timing chain or gear variations (All ofthe above)
Bearing _____ occurs when a bearing shell is slightly above the partng surface of the bearing cap.
Crush
Combustion chamber volume is measured using a fluid and what unit of measure?
Cubic centimeters (cc)
Ultrasonic testing is used to test ________?
Cylinder wall thickness
Siamese cylinder bores are _________.
Cylinders that do not have a coolant passage between them
A misaligned connecting rod causes what type of engine wear
Diagonal wear on the piston skirt
A typical V-8 engine crankshaft has ________ main bearings
Five
If bearing-to-journal clearance is doubled, how much oil will flow?
Four times the amount
A splayed crankshaft is a crankshaft that ________.
Has offset rod journals
Reciprocating weight is also called ________.
Inertia weight
Which type of connecting rod needs to be heated to insall the piston pin?
Interference fit
Full-Floating piston pins are retained by ________.
Lock rings
What should be installed and torqued to factory specification before machining a block
Main bearing caps
How is the crankshaft usually balanced?
Material is drilled out of the counterweight
A gram weighs about the same as a ________.
Paper clip
Side clearance is a measure taken between the _____ and the _____.
Piston ring; piston ring groove
If any crankshaft is ground, it must also be ________.
Polished
The purpose of casting steel casting steel struts into an aluminum piston is to ________.
Provide increased strength & Control thermal expansion (Both A&C)
Engine blocks can be manufactured using which method(s)?
Sand cast or die-cast
A hypereutectic piston has a higher ________.
Silicon content
After the engine block has been machined, it should be cleaned using __________.
Soap and water
The surface finish for the cylinder walls usually depends on _______?
The type of piston rings to be used
Many A\aluminum pistons skirts are plated with ________.
Tin or moly graphite
The block deck is the ________.
Top surface of the block
The thrust bearing surface is located on one of the main bearings to control thrust loads caused by ________.
Torque converter or clutch release forces
A hypereutectic piston ______.
Uses about 16% silicon and is a cast piston (Both A&B)
Blueprinting is the process that ________.
Uses the part manufactures recommended specs for many of the critical clearences / Includes identifying the use of the enine and the vehicle it is going to be used in. (Both B&C)
During flow bench testing cylinders, what is used to hold the valves closed?
Weaker than normal test springs
