ENGINE REPAIR MICHIGAN MECHANIC STUDY GUIDE WITH COMPLETE SOLUTIONS
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Course
Heavy truck
Institution
Heavy Truck
ENGINE REPAIR MICHIGAN MECHANIC
STUDY GUIDE WITH COMPLETE
SOLUTIONS
WHICH OF THE FOLLOWING IS TRUE ABOUT ADJUSTING VALVE TAPPET
CLEARANCE - Correct Answer ️️ -A. THE VALVE TAPPET CLEARENCE ON A HIGH
MILEAGE EGINE SHOULD BE ADJUSTED TIGHTER THAN SPECIFICATIONS FOR
A NEWLY REBUILT ENGINE.
...
ENGINE REPAIR MICHIGAN MECHANIC STUDY GUIDE WITH COMPLETE SOLUTIONS WHICH OF THE FOLLOWING IS TRUE ABOUT ADJUSTING VALVE TAPPET CLEARANCE - Correct Answer ✔️✔️-A. THE VALVE TAPPET CLEARENCE ON A HIGH MILEAGE EGINE SHOULD BE ADJUSTED TIGHTER THAN SPECIFICATIONS FOR A NEWLY REBUILT ENGINE. B. VALVE TAPPET CLEARANCE SHOU LD BE ADJUSTED AT TDC AT THE END OF THE COMPRESSION STROKE. (CORRECT AWNSER) C. VALVE TAPPET CLEARANCE SHOULD BE ADJUSTED AT BDC AT THE END OF THE EXHAUST STROKE. D. NONE OF THE ABOVE. (NOT CORRECT AWNSER) THE HYDRAULIC LIFTERS ARE NOISY AT HIGHWAY SPEEDS BUT QUIET AT LOW SPEEDS. WHAT SHOULD YOU DO FIRST AS YOU DIAGNOSE THIS PROBLEM? - Correct Answer ✔️✔️-A. CHECK LIFTER LEAKDOWN RATE. B. CHECK CRANKCASE OIL LEVEL. (CORRECT AWNSER) C. CHECK LIFTER CLEARANCE HOT. (NOT CORRECT AWNSER) D. CHECK LIFTER CLEARANC E COLD. THE VALVE TIMING ON MOST ENGINES IS CONTROLLED BY: - Correct Answer ✔️✔️-A. AN ON BOARD COMPUTER. (NOT CORRECT AWNSER) B. A CENTRIFUGAL ADVANCE UNIT. C. A VACUUM ADVANCE UNIT D. A BELT, CHAIN OR GEAR DRIVE. (CORRECT AWNSER) THE BEARING INSERTS BELO W HAVE BEEN PLASTIGAGED. WHAT CAN YOU DETERMINE ABOUT THESE PICTURES? - Correct Answer ✔️✔️-A. BOTH BEARING JOURNALS ARE OUT OF ROUND. (NOT CORRECT AWNSER) B. INSERT "B" HAS MORE CLEARANCE. C. INSERT"A" HAS MORE CLEARANCE. D. BOTH BEARINGS HAVE EXCESSIVE TAPER. THE COMPRESSION TEST HAS SHOWED THAT THE MIDDLE TWO CYLINDERS ON ONE SIDE OF A V -8 ENGINE HAD READINGS OF 50 PSI. THE OTHER CYLINDERS HAD READINGS BETWEEN 135 PSI AND 140 PSI. WHAT IS THE LIKELY CAUSE OF THIS CONDITIO N? - Correct Answer ✔️✔️-A. A BURNED EXHAUST VALVE B. A BLOWN INTAKE MANIFOLD GASKET. C. A BLOWN HEAD GASKET. (CORRECT AWNSER) D. A BURNED INTAKE VALVE. (NOT CORRECT AWNSER) EXCESSIVELY WORN VALVE GUIDES: - Correct Answer ✔️✔️-A. MAY BE REPLACED IF REMOVAB LE. B. MAY BE REAMED TO OVERSIZE. C. MAY CAUSE OIL CONSUMPTION. D. ALL OF THE ABOVE. (CORRECT AWNSER)
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