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Two technicians are discussing engine valve seals. Technician A says to apply a light coat of engine oil to new oil seals and push them in. Technician B says you can install the intake oil seal into the exhaust side or install the exhaust oil seal into the intake side because they are interchangeable. Who is right?

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The ASE A9 practice exam for the Light Vehicle Diesel Engine involves the following diagnosis components: Cylinder Head and Valve Train, Engine Block, Lubrication and Cooling Systems, Air Induction and Exhaust Systems and Fuel Systems.


Two technicians are discussing engine valve seals. Technician A says to apply a light coat of engine oil to new oil seals and push them in. Technician B says you can install the intake oil seal into the exhaust side or install the exhaust oil seal into the intake side because they are interchangeable. Who is right?





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