modern automotive technology chapter 42
TRANSCRIPT
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Modern Automotive Modern Automotive TechnologyTechnology Chapter 42Chapter 42
Lubrication System Testing, Service and Repair
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1.1. List common lubrication system problemsList common lubrication system problems2.2. Diagnosis lubrication system problemsDiagnosis lubrication system problems3.3. Measure oil pressureMeasure oil pressure4.4. Change engine oil and filterChange engine oil and filter5.5. Service an oil pumpService an oil pump
Chapter 42Chapter 42 Lubrication System Testing, Service and RepairLubrication System Testing, Service and Repair
Learning ObjectivesLearning Objectives
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Chapter 42Chapter 42 Lubrication System Testing, Service and RepairLubrication System Testing, Service and Repair
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1. PRELUBRICATIONPRELUBRICATION can be used to pinpoint worn engine bearings or other worn parts that lower oil pressure.
2. An EXTERNAL OIL LEAKEXTERNAL OIL LEAK can be easily detected as darkened, wet areas on or around the engine.
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3. OIL DYEOIL DYE is a special coloring used for testing purposes.
4. PRIMINGPRIMING the oil pump before installation will assure proper initial operation upon engine starting.
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Chapter 41Chapter 41
Lubrication Lubrication (oil system) (oil system) system system problemsproblems
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5. LOW OIL PRESSURELOW OIL PRESSURE is indicated when the indicator light glows, the gauge reads low, or when the engine lifters or engine bearings rattle.
6. USED OILUSED OIL is contaminated with dirt, metal particles, carbon, gasoline, ash, acids, and other harmful substances.
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7. An OIL PRESSURE TESTOIL PRESSURE TEST uses a gauge to measure actual pressure in the engine.
8. INTERNAL OIL LEAKAGEINTERNAL OIL LEAKAGE usually shows up as blue smoke coming out of the vehicle's exhaust.
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Chapter 42Chapter 42 Lubrication System Testing, Service and RepairLubrication System Testing, Service and Repair
Oil Pump Types
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Chapter 42Chapter 42 Lubrication System Testing, Service and RepairLubrication System Testing, Service and Repair
Measuring Oil Pump Cover and Gear (Rotor) Thickness
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9. A GASKET CUTTERGASKET CUTTER (gasket scrapper) is used for freeing stuck gaskets.
10. Adjusting or measuring the SPRING SPRING FREE LENGTHFREE LENGTH is a step in pressure relief valve service.
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Chapter 42Chapter 42 Lubrication System Testing, Service and RepairLubrication System Testing, Service and Repair
Using a gasket scrapper to remove an old, stuck old stuck-on
gasket
Applying silicon sealer where gasket butt together
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Exploded view of an oil pump that is mounted to the front of an engine.
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Installing RTVRTV where the gasket meets a rubber seal. This is to prevent leakage
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1.1. Without a properly functioning lubrication Without a properly functioning lubrication system an engine will selfsystem an engine will self--destruct in a matter destruct in a matter of minutesof minutes
2.2. High oil consumption is caused by external or High oil consumption is caused by external or internal oil leakageinternal oil leakage
3.3. Automakers specify oil change intervalsAutomakers specify oil change intervals4.4. Never over tighten oil pan boltsNever over tighten oil pan bolts5.5. A faulty pressure relief valve can cause oil A faulty pressure relief valve can cause oil
pressure problemspressure problems
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1.1. List common lubrication system problemsList common lubrication system problems2.2. Diagnosis lubrication system problemsDiagnosis lubrication system problems3.3. Measure oil pressureMeasure oil pressure4.4. Change engine oil and filterChange engine oil and filter5.5. Service an oil pumpService an oil pump
Chapter 42Chapter 42 Lubrication System Testing, Service and RepairLubrication System Testing, Service and Repair
Learning ObjectivesLearning Objectives