ASE A1 Engine Repair Practice Test

21. Technician A says oil galleries transfer oil to the crankshaft, camshaft, and valve train. Technician B says a clogged or restricted crankshaft oil gallery will result in premature connecting rod bearing wear. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

21.

Answer A is wrong. The oil galleries are small holes drilled or cast into the engine block and heads that transfer the oil to the crankshaft, camshaft, and valve train.

Answer B is wrong. The crankshaft contains oil supply passages that transfer oil under pressure to the connecting rod journals/bearings.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Both technicians are correct.

22. Technician A says to measure the oil pump gear end-play before reinstalling the pump. Technician B says to use a feeler gauge and a straight edge to measure oil pump body flatness. Who is correct

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

22.

Answer A is wrong. As the oil pump's gears and housing wear, the pump's efficiency suffers.

Answer B is wrong. Place the straightedge across the oil pump body and insert the feeler gauge blade to measure the pump body flatness.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Both technicians are correct.

Torque angle gauge.

23. The technician in the illustration above is:

  • A. Setting torque with a torque wrench.
  • B. Setting angle with an angle gauge.
  • C. Adjusting the rocker shaft.
  • D. None of the above.

23.

Answer A is wrong. Torque to yield bolts are typically torqued to snug with a torque gauge and then angled.

Answer B is correct. This process is known as the torque angle fastening method.

Answer C is wrong. Answer B is correct.

Answer D is wrong. Answer B is correct.

24. The charging light intermittently flickers while driving. The MOST likely cause of this condition is:

  • A. An open positive charging cable.
  • B. A misaligned power steering pulley.
  • C.A faulty clutch pulley bearing.
  • D. A weak accessory belt tensioner.

24.

Answer A is wrong. Answer D is correct.

Answer B is wrong. Removing accessories like the alternator and power steering pump during engine removal can result in pulley misalignment.

Answer C is wrong. If the tensioner applies too much pressure or is overadjusted, the accessory pully bearings will wear and begin to squeal.

Answer D is correct. A weak accessory belt tensioner or a worn accessory belt results in squealing, a flickering charging light, and a flapping belt.

25. Technician A says if the teeth on the flywheel's ring gear are worn, the ring gear can be removed and replaced. Technician B says that minor scoring on the surface of a flywheel can be removed by resurfacing. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

25.

Answer A is wrong. Flywheels are found on vehicles equipped with manual transmissions. If the ring gear on a flywheel is damaged, it can often be removed and replaced.

Answer B is wrong. Scoring on the surface of a flywheel can be removed by resurfacing. The ring gear can be replaced making it reusable. A cracked flexplate is always replaced with a new one.

Answer C is correct. Resurfacing a flywheel ensures that it has the proper flatness and smooth finish. The surface area must be smooth and not warped.

Answer D is wrong. Warpage reduces the contact area of the flywheel, allowing it to slip. This slipping causes excessive heat, hotspots, and glazing.