Which of the following is true about adjusting valve tappet clearance - answer valve tap-
pet clearance should be adjusted at tdc at the end of the compression stroke.
The hydraulic lifters are noisy at highway speeds but quiet at low speeds. What should you
do first as you diagnose this problem? - answer check crankcase oil level.
The valve timing on most engines is controlled by: - answer a belt, chain or gear drive
The bearing inserts below have been plastigaged. What can you determine about these pic-
tures? - answer insert"a" has more clearance.
The compression test has showed that the middle two cylinders on one side of a v-8 engine
had readings of 50 psi. The other cylinders had readings between 135 psi and 140 psi. What
is the likely cause of this condition? - answer a blown head gasket.
Excessively worn valve guides: - answer all of the above.
Intake valve deposits, as shown below: - answer both b and c
What is being checked on the valve spring in the illustration below? - answer installed
height
You are using a vacuum gauge connected to the intake manifold. Which of the following is
true? - answer when the engine is rapidly accelerated, the needle will rise to a high read-
ing.
1
, What are the minimum and maximum measurements of a shaft given 2.125 plus or minius
.015? - answer 2.062-2.250
The mechanic has determined that no fuel squirts into the carburetot when the throttle is
opened quickly. What could be caused by: - answer all of the above.
A warm engine has low oil pressure. The most likely cause of the low oil pressure is: - an-
swer leaky main bearing seals
What is the reading of the 0-1 inch micrometer below? - answer 5.750" wrong 1.599 is
prob right answer
You are reinstalling pistons with new rings. The ring compressor will not fit tight around a
piston skirt and the rings bind on the block surface. What should you do? - answer check
the ring end gap.
You have checked the crankshaft and found thye following measurements below. The rod
journal surfaces are smooth and no rod journal taper is present. What should you do? (use
given specifications and measurements.) - answer install standard bearings in all rods.
You have measured the cylinders and obtained the measurements given below. All the cylin-
ders are smooth and the pistons are reuseable. What should the mechanic do? - answer
deglaze cylinders, use original pistons and new standard rings.
Refer to the manufacturer's specifications in the image. You could find the amount of bore
taper by: - answer adding measurement "c" and "d" togeather.
Subtracting measurement "d" from measurement "c".
Subtracting measurement "a" from measuremnt " b is the wrong answer
2
pet clearance should be adjusted at tdc at the end of the compression stroke.
The hydraulic lifters are noisy at highway speeds but quiet at low speeds. What should you
do first as you diagnose this problem? - answer check crankcase oil level.
The valve timing on most engines is controlled by: - answer a belt, chain or gear drive
The bearing inserts below have been plastigaged. What can you determine about these pic-
tures? - answer insert"a" has more clearance.
The compression test has showed that the middle two cylinders on one side of a v-8 engine
had readings of 50 psi. The other cylinders had readings between 135 psi and 140 psi. What
is the likely cause of this condition? - answer a blown head gasket.
Excessively worn valve guides: - answer all of the above.
Intake valve deposits, as shown below: - answer both b and c
What is being checked on the valve spring in the illustration below? - answer installed
height
You are using a vacuum gauge connected to the intake manifold. Which of the following is
true? - answer when the engine is rapidly accelerated, the needle will rise to a high read-
ing.
1
, What are the minimum and maximum measurements of a shaft given 2.125 plus or minius
.015? - answer 2.062-2.250
The mechanic has determined that no fuel squirts into the carburetot when the throttle is
opened quickly. What could be caused by: - answer all of the above.
A warm engine has low oil pressure. The most likely cause of the low oil pressure is: - an-
swer leaky main bearing seals
What is the reading of the 0-1 inch micrometer below? - answer 5.750" wrong 1.599 is
prob right answer
You are reinstalling pistons with new rings. The ring compressor will not fit tight around a
piston skirt and the rings bind on the block surface. What should you do? - answer check
the ring end gap.
You have checked the crankshaft and found thye following measurements below. The rod
journal surfaces are smooth and no rod journal taper is present. What should you do? (use
given specifications and measurements.) - answer install standard bearings in all rods.
You have measured the cylinders and obtained the measurements given below. All the cylin-
ders are smooth and the pistons are reuseable. What should the mechanic do? - answer
deglaze cylinders, use original pistons and new standard rings.
Refer to the manufacturer's specifications in the image. You could find the amount of bore
taper by: - answer adding measurement "c" and "d" togeather.
Subtracting measurement "d" from measurement "c".
Subtracting measurement "a" from measuremnt " b is the wrong answer
2
