which of the following is true about adjusting val
the valve timing on most engines is controlled by
the compression test has showed that the middle tw
Geschreven voor
MICHIGAN STATE BRAKES
MICHIGAN STATE BRAKES
Verkoper
Volgen
Tutor96
Ontvangen beoordelingen
Voorbeeld van de inhoud
ENGINE REPAIR MICHIGAN
MECHANIC STUDY GUIDE
WHICH OF THE FOLLOWING IS TRUE ABOUT ADJUSTING VALVE TAPPET
CLEARANCE - ANSA. THE VALVE TAPPET CLEARENCE ON A HIGH MILEAGE EGINE
SHOULD BE ADJUSTED TIGHTER THAN SPECIFICATIONS FOR A NEWLY REBUILT
ENGINE.
B. VALVE TAPPET CLEARANCE SHOULD 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? -
ANSA. CHECK LIFTER LEAKDOWN RATE.
B. CHECK CRANKCASE OIL LEVEL. (CORRECT AWNSER)
C. CHECK LIFTER CLEARANCE HOT. (NOT CORRECT AWNSER)
D. CHECK LIFTER CLEARANCE COLD.
THE VALVE TIMING ON MOST ENGINES IS CONTROLLED BY: - ANSA. 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 BELOW HAVE BEEN PLASTIGAGED. WHAT CAN YOU
DETERMINE ABOUT THESE PICTURES? - ANSA. 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
CONDITION? - ANSA. 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: - ANSA. MAY BE REPLACED IF REMOVABLE.
B. MAY BE REAMED TO OVERSIZE.
C. MAY CAUSE OIL CONSUMPTION.
, D. ALL OF THE ABOVE. (CORRECT AWNSER)
INTAKE VALVE DEPOSITS, AS SHOWN BELOW: - ANSA. WILL NOT AFFECT ENGINE
PERFORMANCE.
B. CAN REDUCE VOLUMETRIC EFFICIENCY AND AFFECT HIGH RPM
PERFORMANCE.
C. CAN CAUSE DRIVEABILITY PROBLEMS DURING COLD ENGINE OPERATION.
D. BOTH B AND C. (CORRECT AWNSER)
WHAT IS BEING CHECKED ON THE VALVE SPRING IN THE ILLUSTRATION BELOW? -
ANSA. INSTALLED HEIGHT (CORRECT AWNSER)
B. SQUARENESS
C. COIL TAPER
D. TENSION (NOT CORRECT AWNSER)
YOU ARE USING A VACUUM GAUGE CONNECTED TO THE INTAKE MANIFOLD.
WHICH OF THE FOLLOWING IS TRUE? - ANSA. WHEN THE ENGINE IS RAPIDLY
ACCELERATED, THE NEEDLE WILL RISE TO A HIGH READING. (POSSIBLE CORRECT
AWNSER)
B. WHEN THE THROTLE IS RELEASED SUDDENLY FROM 2500 RPM, THE NEEDLE
WILL SNAP TO A HIGHER THAN NORMAL READING FOR AN INSTANT.
C. A "NORMAL" GAUGE READING AT IDLE WOULD BE 7-10 INCHES.
D. ALL OF THE ABOVE. (NOT CORRECT AWNSER)
WHAT ARE THE MINIMUM AND MAXIMUM MEASUREMENTS OF A SHAFT GIVEN 2.125
PLUS OR MINIUS .015? - ANSA. 2.062-2.250 (NOT CORRECT AWNSER)
B. 1.975-2.275
C. 2.110-2.140 (CORRECT AWNSER)
D. 2.124-2.126
THE MECHANIC HAS DETERMINED THAT NO FUEL SQUIRTS INTO THE CARBURETOT
WHEN THE THROTTLE IS OPENED QUICKLY. WHAT COULD BE CAUSED BY: - ANSA.
DISCONNECTED LINKAGE.
B. A HARDENED ACCELERATOR PUMP PLUNGER.
C. A PLUGGED PUMP NOZZLE.
D. ALL OF THE ABOVE. (CORRECT AWNSER)
A WARM ENGINE HAS LOW OIL PRESSURE. THE MOST LIKELY CAUSE OF THE LOW
OIL PRESSURE IS: - ANSA. LEAKY MAIN BEARING SEALS. (CORRECT AWNSER)
B. WORN VALVE GUIDES.
C. WORN BEARINGS.
D. LEAKY HYDRAULIC LIFTERS (NOT CORRECT AWNSER)
WHAT IS THE READING OF THE 0-1 INCH MICROMETER BELOW? - ANSA. 0.575" (NOT
CORRECT AWNSER)
B. 0.599"
C. 5.750" (CORRECT AWNSER)
D. 1.599"
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper Tutor96. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €13,29. Je zit daarna nergens aan vast.