Student: ___________________________________________________________________________
1. What is an engine ‘top overhaul’?
2. What workshop equipment is used to remove an engine?
3. State the three possible causes of engine oil loss or consumption.
4. Regular engine maintenance assists with maintaining engine performance, prevents unnecessary exhaust emissions
and prolongs engine life.
True False
5. Symptoms highlighting engine problems include excessive engine braking on deceleration.
True False
,6. An engine top overhaul includes the crankshaft seal.
True False
7. Valve noise faults would commonly include a tapping sound.
True False
8. Engine chain noise is most likely to be pronounced at high RPM.
True False
9. Worn inlet valve guides are likely to deliver exhaust smoke:
A. after downhill engine braking
B. under full load
C. at high speed
D. all of the time
10. Worn bearings can more easily be diagnosed using:
A. a dial gauge on the crankshaft
B. the car's tachometer
C. a stethoscope
D.
an oil pressure gauge
11. Low compression readings on adjacent cylinders may commonly indicate:
A. a double valve burn
B. incorrect valve clearances
C. faulty rings
D. a faulty head gasket
12. Low compression readings compared to factory specifications may be caused by:
A. none of the options given here
B. excessive valve clearances
C. excessive material removed from the cylinder head face
D.
worn piston rings
,13. Low compression readings on one cylinder may indicate a problem with which component?
A. Exhaust manifold.
B. Engine valves.
C. Cylinder head.
D. Intake manifold.
14. When disassembling the engine:
A. each item should be inspected for wear
B. all of the steps given here should be taken
C. parts should be labelled
D. notes should be taken and digital photographs should be used if necessary
15. The used cylinder head gasket can normally indicate:
A. engine oil condition
B. compression ratios
C. spark plug heat range
D. flatness of block face and head face
16. Before disassembly, looking down the inlet ports can indicate:
A. stem wear
B. valve guide wear
C. gasket matching
D. valve seating
17. A faulty crankcase ventilation system may cause:
A. broken rings
B. burnt valves
C. bearing wear
D. leaking head gasket
18. Which of the following can sometimes affect camshaft timing mark checking?
A. None of the options given here.
B. Valve clearances.
C. Lobe lift.
D. Direction of rotation.
19. A cylinder bore gauge is commonly used to check:
A. cylinder stroke
B. cylinder taper only
C. cylinder ovality and taper
D. cylinder ovality only
, 20. Runout of shafts is commonly checked using:
A. feeler gauges
B. jenny calipers
C. a dial gauge
D. vernier calipers
21. Torque-to-yield cylinder head bolts must:
A. be replaced after use
B. be crack tested
C. be re-tensioned after initial engine warming
D. be angle tensioned
22. After reconditioning, engines should be:
A.
at normal operating temperature before driving.
B.
driven hard initially to avoid bore glazing.
C.
tested at all rev ranges.
D.
all of the given options are correct.
23.
Correct piston direction for reassembly can be identified by:
A. an arrow indicating the forward direction of the piston
B. all or any of the options given here
C. a notch indicating the forward direction of the piston
D. an 'F' mark on the top of the piston
24. A 6 mm class 6T with a pitch of 1.00 mm should be tightened to:
A. 6.5 Nm
B. 10 Nm
C. 4 Nm
D. 8 Nm