ASE T1 Domain 2: Cylinder Head and Valve Train Diagnosis and Repair Welcome to your ASE T1 Domain 2: Cylinder Head and Valve Train Diagnosis and Repair 1. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair When performing a cylinder leak-down test on an engine, air leakage is heard from the adjacent cylinder's exhaust pipe. This most likely indicates a problem with the: A. Intake valves of the tested cylinder. B. Exhaust valves of the tested cylinder. C. Head gasket between the two cylinders. D. Piston rings of the adjacent cylinder. None 2. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair A technician finds that an overhead cam engine with variable valve timing is experiencing higher than normal oil consumption. The valve seals and rings have been ruled out. What is the NEXT most likely area to check? A. Timing chain tensioner B. Variable valve timing solenoid and actuator C. Oil pump wear and pressure D. Camshaft end play None 3. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair A technician is diagnosing an engine with a suspected warped cylinder head. Which of the following tools is MOST appropriate to use to confirm the technician's suspicion? A. Micrometer B. Dial indicator C. Straight edge and feeler gauge D. Torque wrench None 4. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair During disassembly of a cylinder head, a technician notices that the valve guide is excessively worn. Which of the following is the MOST likely cause of this condition? A. Over-torqued cylinder head bolts B. Lack of valve rotation C. Incompatible valve spring tension D. Detonation in the combustion chamber None 5. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair What would be the primary reason for replacing a hydraulic lifter when servicing a cylinder head? A. The lifter is unable to hold oil pressure. B. There is visible damage to the lifter roller. C. The lifter has collapsed and will not extend. D. All of the above reasons are correct. None 6. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair A V6 engine with two overhead camshafts per bank is experiencing low power and rough idle. The compression is good, but a cylinder leak-down test indicates a leak at the intake valves for multiple cylinders on one bank. Prior to removing the cylinder head for further inspection, which of the following should be checked FIRST? A. Camshaft timing B. Intake manifold vacuum C. Fuel injector pulse width D. Spark plug condition None 7. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair A technician finds oil in the coolant of an engine. After ruling out external leaks and a cracked block, which of the following could be the cause? A. Faulty oil cooler B. Warped cylinder head C. Defective head gasket D. Both B and C are correct. None 8. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair Which of the following conditions is MOST likely to cause a single cylinder to have low compression and a burned exhaust valve? A. A stuck open EGR valve B. A malfunctioning O2 sensor C. A leaking fuel injector D. Prolonged engine knocking None 9. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair During the removal of a cylinder head, a technician notes that the head bolts do not require much force to loosen. What is the FIRST thing that should be inspected after the head is removed? A. The condition of the head bolts and threads in the block. B. The flatness of the cylinder head gasket surface. C. The condition of the camshaft and lifters. D. The pattern of the gasket failure. None 10. ASE T1: Cylinder Head and Valve Train Diagnosis and Repair A technician is diagnosing an engine that has a persistent misfire after a valve job was recently performed. Which of the following could be the cause of the misfire if the ignition and fuel systems are functioning properly? A. The valves were ground excessively, causing a change in valve timing. B. The valve springs were installed upside down. C. The head gasket is leaking coolant into the combustion chamber. D. The camshafts were incorrectly torqued during installation. None 1 out of 10 Time is Up! Time's up
