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TEST SPECIFICATIONS AND TASK LISTS FOR THE NATIONAL AUTOMOTIVE STUDENT SKILLS STANDARDS ASSESSMENT - page 3 / 9

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  • 9.

    Inspect, measure, and replace/reinstall overhead camshaft; measure/adjust end play and backlash.

  • 10.

    Inspect electronic wiring harness and brackets for wear, bending, cracks, and looseness; determine

needed action.

1.

Perform crankcase pressure test; determine needed action.

2.

Remove, inspect, service, and install pans, covers, gaskets, seals, wear rings, and crankcase ventilation components.

11. Adjust valve bridges (crossheads); adjust valve clearances and injector settings.

C

. Engine Block

  • 15.

    Check condition of piston cooling jets (nozzles); determine needed action.

  • 16.

    Inspect and measure crankshaft vibration damper; determine needed action.

  • 17.

    Install and align flywheel housing; inspect flywheel housing(s) to transmission housing/engine mating

surface(s) and measure flywheel housing face and bore runout; determine needed action.

18. Inspect flywheel/flexplate (including ring gear) and mounting surfaces for cracks and wear; measure runout; determine needed action.

  • D.

    Lubrication Systems

    • 1.

      Test engine oil pressure and check operation of pressure sensor, gauge, and/or sending unit; test

engine oil temperature and check operation of temperature sensor; determine needed action.

  • 2.

    Check engine oil level, condition, and consumption; determine needed action.

  • 3.

    Inspect and measure oil pump, drives, inlet pipes, and pick-up screens; check drive gear clearances;

determine needed action.

4.

Inspect oil pressure regulator valve(s), by-pass and pressure relief valve(s), oil thermostat, and filters; determine needed action.

  • 5.

    Inspect, clean, and test oil cooler and components; determine needed action.

  • 6.

    Inspect turbocharger lubrication and cooling systems; determine needed action.

  • 7.

    Determine proper lubricant and perform oil and filter change.

    • E.

      Cooling System

  • 1.

    Check engine coolant type, level, condition, and consumption; test coolant for freeze protection and

additive package concentration; determine needed action.

2.

Test coolant temperature and check operation of temperature and level sensors, gauge, and/or sending unit; determine needed action.

3.

Inspect and reinstall/replace pulleys, tensioners and drive belts; adjust drive belts and check alignment.

4.

Inspect thermostat(s), by-passes, housing(s), and seals; replace as needed.

5.

Recover, flush, and refill with recommended coolant/additive package; bleed cooling system.

Effective: January 2010

3

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