ASE identifies Engine Repair as an individual service area for certification. The engine repair service area involves the following components:

- General Engine Diagnosis
- Cylinder Head and Valve Train Diagnosis and Repair
- Engine Block Diagnosis and Repair
- Lubrication and Cooling Systems Diagnosis and Repair
- Fuel, Electrical, Ignition and Exhaust Systems Diagnosis and Repair.

ASE A1 Engine Repair Test

Time left 00:00

13 Questions

1. This question is not like the others. It has the word EXCEPT. For this question, look for the choice that could NOT cause the described situation. Read the entire question carefully before choosing your answer.

All of the following are reasons why you must disable the fuel injection system and ignition system when conducting an engine compression test, EXCEPT:

Prevents a shop engine firePrevents damage to the ignition system during the testPrevents fuel injection into the cylindersPrevents inaccurate readings

2. The surface of the cylinder head has just been machined. What will have to be done to the valve train?

Lengthening the push rodsIncreasing valve spring tensionGrinding the valve stemsShim the head

3. A power balance test is being performed on an engine. Technician A says to note the engine RPM before and during the test for each cylinder. Technician B says to record the RPM drop for each cylinder. Who is right?

A onlyNeither A not BB onlyBoth A and B

4. For this question, look for the choice that could NOT fit the described situation. Read the entire question carefully before choosing your answer.

All of the following statements are correct when adjusting valve lash on engines with overhead camshaft cylinder heads, EXCEPT:

The follower or rocker must be on the base circle of the camshaft when measuring.The engine must be cold for all engine manufacturersClearance is measured between the camshaft and follower or rocker on most engines.Shims may be used to make adjustments.

5. Which of the following steps is LEAST likely to be necessary when refilling a cooling system?

Mixing tap water and distilled waterBleeding the air out of the systemCheck the radiator cap for proper fitMixing the proper ratio of water to coolant

6. An engine noise sounds like a knock at the side of the engine that is louder when the engine is cold and goes away or is reduced when the engine reaches operating temperature. Which of the following is the MOST likely cause?

Main bearingWrist pinPiston slapCam bearing

7. Which of the following creates a flapping sound near the front of the engine?

Drive belt too tightTiming belt tension too looseDrive belt too looseTiming belt tension too tight

8. What engine seal is pictured in the below illustration?
 

Rear mainThrottle valveValveCamshaft plug

9. A technician is using a laptop computer and manufacturer software to test the ECT (Electronic Controlled Throttle) circuit that has a stored DTC P1121 (Electric Throttle Control Actuator). Which of the following customer concerns could be caused by a defective ECT return spring malfunction?

High idleDetonationLow powerRough idle

10. An engine is making a knocking sound that changes with RPM, and the noise disappears while a cylinder is being tested during the cylinder balance test. Which of the following could be the cause?

Burnt valvePiston SlapMain bearingRod bearing

11. Technician A says the closed coil end of a valve spring should go against the cylinder head. Technician B says all valve springs use shims to control free spring height. Who is right?

NeitherA onlyB onlyBoth

12. Technician A says the voltage required maintaining spark is referred to as the spark line and the duration of the spark line is based on total primary circuit resistance and coil voltage available. Technician B says problems with the burning (called fuel propagation) will show up within the spark line. Who is right?

NeitherA onlyBothB only

13. Technician A says old antifreeze may cause corrosion build-up in the cooling system.  Technician B says some original equipment manufacturers (OEM) recommend that the coolant be changed at specified intervals.  Who is right?

Both A and BB onlyNeither A nor BA only