ENGINE REPAIR MICHIGAN MECHANIC
STUDY GUIDE LATEST 2026 UPDATED
EXAM QUESTIONS AND VERIFIED
ANSWERS (2026/2027) | GRADED A+ |
100% SUCCESS
PISTONS FOR A V-6 ENGINE ARE GENERALLY: - Correct Answer -A. SHAPED TO
ALLOW FOR EXPANSION FROM HEAT.
B. PERFECTLY ROUND.
C. INTERCHANGEABLE FROM ONE CYLINDER BANK TO THE OTHER. (CORRECT
AWNSER)
D. DESIGNED TO BE INSTALLED WITH THE IDENTIFYING MARKS TOWARDS THE
OUTSIDE OF THE CYLINDER BANK. (NOT CORRECT AWNSER)
REFER TO THE DRAWING AND SPECIFICATIONS IN THE PICTURE. ROD JOURNAL
OUT-OF-ROUND IS THE DIFFERNECE BETWEEN THE JOURNAL MEASUREMENTS AT:
- Correct Answer -A. E AND F.
B. A AND B.
C. C AND D. (NOT CORRECT AWNSER)
D. NONE OF THE ABOVE.
,TOO MUCH CRANKCASE BLOW-BY IS LIKELY CAUSED BY: - Correct Answer -A.
WORN PISTON RINGS. (CORRECT AWNSER)
B. A LEAKY EXHAUST MANIFOLD
C. WORN EXHAUST VALVE GUIDES.
D. BOTH A AND B. (NOT CORRECT AWNSER)
WHICH ONE OF THE FOLLOWING WILL NOT BE AFFECTED WHEN FREPLACING
PISTON #1 WITH PISTON #2? - Correct Answer -A. CLEARANCE VOLUME.
B. COMPRESSION RATIO.
C. ENGINE TIMING. (CORRECT AWNSER)
D. OCTANE REQUIREMENT. (NOT CORRECT AWNSER)
A MECHANIC IS CHECKING MAIN BEARING CLEARANCE WITH PLASTIGAGE. IF THE
PLASTIGAGE FLATTENS MORE AT ONE END THAN THE OTHER, IT WOULD
INDICATE: - Correct Answer -A. THE ROD IS BENT (POSSIBLE CORRECT AWNSER)
B. THE CRANK JOURNAL IS TAPERED.
C. THE CRANKSHAFT IS BENT. (NOT CORRECT AWNSER)
D. THE MAIN BEARING IS OVER TORQUED.
AFTER MACHINING THE CYLINDERS, YOU WOULD HONE THE BORES TO: - Correct
Answer -A. PROVIDE PROPER PISTON RING END GAP.
, B. REDUCE TAPER.
C. REDUCE OUT-OF-ROUND.
D. PRODUCE THE PROPER SIZE WITH A CROSS HATCH FINISH. (CORRECT AWNSER)
HOW CAN EXCESSIVE CAMSHAFT LOBE WEAR BE DETERMINED WITHOUT
REMOVING THE CAM FROM THE ENGINE? - Correct Answer -A. USE A
MICROMETER TO MEASURE EACH LOBE.
B. REMOVE THE ROCKER COVER AND MEASURE THE PUSH ROD TRAVEL ON EACH
CYLINDER. (POSSIBLE CORRECT AWNSER)
C. REMOVE THE TIMING COVER AND USE A DIAL INDICATOR ON THE END OF THE
CAM.
D. REMOVE THE ROCKER COVER AND INSERT A FEELER GAUGE BETWEEN THE
VALVE STEM AND THE ROCKER ARM. (NOT CORRECT AWNSER)
DURING A MANIFOLD VACUUM TEST, THE VACUUM GAUGE NEEDLE REGISTERS A
STEADY 12 INCHES AT IDLE. WHICH ONE OF THE FOLLOWING WOULD CAUSE
THIS? - Correct Answer -A. A FOULED PLUG.
B. A LEAKY VALVE. (NOT CORRECT AWNSER)
C. LATE TIMING. (CORRECT AWNSER)
D. THE AIR FUEL MIXTURE IS TOO RICH.
PISTON RINGS SHOULD BE INSTALLED SO THAT THE TRADEMARKS OR DOTS: -
Correct Answer -A. ARE IN LINE WITH THE WRIST PIN.
STUDY GUIDE LATEST 2026 UPDATED
EXAM QUESTIONS AND VERIFIED
ANSWERS (2026/2027) | GRADED A+ |
100% SUCCESS
PISTONS FOR A V-6 ENGINE ARE GENERALLY: - Correct Answer -A. SHAPED TO
ALLOW FOR EXPANSION FROM HEAT.
B. PERFECTLY ROUND.
C. INTERCHANGEABLE FROM ONE CYLINDER BANK TO THE OTHER. (CORRECT
AWNSER)
D. DESIGNED TO BE INSTALLED WITH THE IDENTIFYING MARKS TOWARDS THE
OUTSIDE OF THE CYLINDER BANK. (NOT CORRECT AWNSER)
REFER TO THE DRAWING AND SPECIFICATIONS IN THE PICTURE. ROD JOURNAL
OUT-OF-ROUND IS THE DIFFERNECE BETWEEN THE JOURNAL MEASUREMENTS AT:
- Correct Answer -A. E AND F.
B. A AND B.
C. C AND D. (NOT CORRECT AWNSER)
D. NONE OF THE ABOVE.
,TOO MUCH CRANKCASE BLOW-BY IS LIKELY CAUSED BY: - Correct Answer -A.
WORN PISTON RINGS. (CORRECT AWNSER)
B. A LEAKY EXHAUST MANIFOLD
C. WORN EXHAUST VALVE GUIDES.
D. BOTH A AND B. (NOT CORRECT AWNSER)
WHICH ONE OF THE FOLLOWING WILL NOT BE AFFECTED WHEN FREPLACING
PISTON #1 WITH PISTON #2? - Correct Answer -A. CLEARANCE VOLUME.
B. COMPRESSION RATIO.
C. ENGINE TIMING. (CORRECT AWNSER)
D. OCTANE REQUIREMENT. (NOT CORRECT AWNSER)
A MECHANIC IS CHECKING MAIN BEARING CLEARANCE WITH PLASTIGAGE. IF THE
PLASTIGAGE FLATTENS MORE AT ONE END THAN THE OTHER, IT WOULD
INDICATE: - Correct Answer -A. THE ROD IS BENT (POSSIBLE CORRECT AWNSER)
B. THE CRANK JOURNAL IS TAPERED.
C. THE CRANKSHAFT IS BENT. (NOT CORRECT AWNSER)
D. THE MAIN BEARING IS OVER TORQUED.
AFTER MACHINING THE CYLINDERS, YOU WOULD HONE THE BORES TO: - Correct
Answer -A. PROVIDE PROPER PISTON RING END GAP.
, B. REDUCE TAPER.
C. REDUCE OUT-OF-ROUND.
D. PRODUCE THE PROPER SIZE WITH A CROSS HATCH FINISH. (CORRECT AWNSER)
HOW CAN EXCESSIVE CAMSHAFT LOBE WEAR BE DETERMINED WITHOUT
REMOVING THE CAM FROM THE ENGINE? - Correct Answer -A. USE A
MICROMETER TO MEASURE EACH LOBE.
B. REMOVE THE ROCKER COVER AND MEASURE THE PUSH ROD TRAVEL ON EACH
CYLINDER. (POSSIBLE CORRECT AWNSER)
C. REMOVE THE TIMING COVER AND USE A DIAL INDICATOR ON THE END OF THE
CAM.
D. REMOVE THE ROCKER COVER AND INSERT A FEELER GAUGE BETWEEN THE
VALVE STEM AND THE ROCKER ARM. (NOT CORRECT AWNSER)
DURING A MANIFOLD VACUUM TEST, THE VACUUM GAUGE NEEDLE REGISTERS A
STEADY 12 INCHES AT IDLE. WHICH ONE OF THE FOLLOWING WOULD CAUSE
THIS? - Correct Answer -A. A FOULED PLUG.
B. A LEAKY VALVE. (NOT CORRECT AWNSER)
C. LATE TIMING. (CORRECT AWNSER)
D. THE AIR FUEL MIXTURE IS TOO RICH.
PISTON RINGS SHOULD BE INSTALLED SO THAT THE TRADEMARKS OR DOTS: -
Correct Answer -A. ARE IN LINE WITH THE WRIST PIN.
