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41 Cards in this Set
- Front
- Back
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t or f? Gradual new-engine break-in is not
recommended. |
true. because prolonged operation at light
loads during the early life of the engine can cause excessive carbon build-up. |
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As soon as the engine is put into service and
coolant temperature has reached at least __ degrees, you can apply maximum load to the engine. |
140 degrees.
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t or f? idle and maximum speed may be adjusted as neccessarry?
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false. Do not change the idle or maximum speed
settings because this can damage the engine or transmission. |
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what can result from a faulty injector?
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engine misfire.
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how can you detect which injector is faulty?
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When the union nut of the
defective injector is loosened, it has little or no effect on the engine speed. |
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tighten
flange capscrews on the fuel injector evenly and gradually to __ ft-lb. (QA) |
12 ft-lb.
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Install high-pressure fuel pipe and tighten
nuts to __ ft-lb. (QA) |
14 ft-lb.
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what side of the engine is the fuel pump located?
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the right side.
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what 4 locations are loosened to provide assistance for puging the fuel lines?
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1. banjo bolt on top of fuel filter
2. inlet connection at the fuel injection pump 3. vent screws on the fuel injectin pump 4. union nuts on the high pressure lines at the injectors. (manual operation of the priming lever on the fuel lift pump is required to provide fuel pressure during purging). |
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where is the water seperator located?
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behind the front, right wheel well.
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DO NOT EXCEED __ PSI when cleaning
the air cleaner element or the element will be damaged. |
30 psi.
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where are valve clearances checked?
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at the top of the valve stem, and the bottom of the rocker arm.
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what is the correct valve clearance for the intake and exhaust valves?
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0.012" (0.30mm).
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where is #1 cylinder located?
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at the front of the engine.
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what is used to measure valve clearances?
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a feeler gauge.
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in what sequence of the cylinders do you check the valve clearaces?
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1,4,3,2.
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at what position of the crankshaft do you check a cylinder's valve clearance?
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when the opposite cylinder's intake valve has just opened and the exhaust valve has not closed completely.
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how long should you wait for oil in oil pan to cool prior to changing?
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1/2 hour.
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Tighten oil drain plug to __ ft-lb
torque. (QA). |
25 ft-lb.
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where's the only place you should access the oil filter from?
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below the unit only.
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how many turns should you hand tighten the oil filter?
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1/2 to 3/4 turn.
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how do you drain coolant from the engine alone?
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remove the brass-colored drain plug from
side of cylinder block to drain engine. |
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why is it neccessary to remove the plug from the thermostat
housing when servicing with new coolant? |
to allow air to escape the engine.
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t or f? pry or use force
directly on drive plate or torque converter in order to rotate. |
false. Use socket and bar to turn engine
crankshaft as needed. |
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t or f? Do not rotate engine crankshaft if drive
plate is not attached to converter. |
true.
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how can you support the transmission from falling when replacing the engine?
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Position hydraulic floor jack under
transmission and raise high enough to contact transmission. |
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what should the drive belt deflection be?
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With
moderate thumb pressure, deflection should be 3/8 inch. |
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cylinder head bolts should be tightened in a specific sequence to __ ft-lbs. (QA).
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88 FT-LBS.
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If the cylinder head bolt does not move before the correct
torque is achieved, then slacken off __ to __ of a turn and retighten to 88 ft-lb. (QA) |
1/12 to 1/6 of a
turn (30° to 60°). |
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After tightening all cylinder head bolts, recheck the first __
positions without slackening off to make sure they are still tightened to 88 ft-lb. (QA) |
the first 10 bolts.
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how often should the cylinder head bolts be checked for the proper torque?
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After the engine has first been run, and After the engine has been in service for 25 -
50 hours. |
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torque power steering pump bolts to __ ft-lbs. (QA).
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23 ft-lbs.
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torque the crankshaft pulley bolts to __ ft-lbs. (QA).
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70 ft-lbs.
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what are 3 causes for the engine running rough?
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1. Dirty or faulty injector nozzles.
2. Injection pump timing incorrect. 3. Faulty injection pump. |
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what are 3 causes engine knock?
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1. low oil level.
2. Injection pump timing incorrect. 3. Water, dirt, or air in fuel system. |
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t or f? too much oil can cause an engine to overheat?
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true.
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t or f? faulty injectors can cause engine vibration?
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true.
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what can cause an increase in crankcase pressure?
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Restriction in breather pipe.
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what are 4 causes for engine emmiting white smoke?
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1. Incorrect fuel.
2. Below normal engine temperature. 3. Injection pump out of time. 4. Dirty or faulty injector nozzles. |
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what are 6 causes for engine emmiting black or gray smoke?
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1. Clogged air intake or dirty air filter.
2. Engine overloaded. 3. Excessive operation at low idle speed. 4. Burned, worn, or sticking valves. 5. Restriction in exhaust pipe. 6. Incorrect valve tip clearances. |
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what are 3 causes for engine starting in all gears?
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1. Bad starter relay.
2. Bad safety switch. 3. Bad ignition switch. |
