Engine Mechanical: Adjustments Nissan Versa II

ADJUSTMENT

Note. Proper valve clearance is obtained by selecting the correct valve lifter head thickness.

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Scheme 4

1. Remove camshaft. Refer to " «EXPLODED VIEW»(ref-605933-S40974854352014032500000) ".
2. Remove valve lifters from the locations that are out of specification.
3. Measure the center thickness of the removed valve lifters with a micrometer (A).
4. Use the equation below to calculate valve lifter thickness for replacement. Valve lifter thickness calculation: t = t1 + (C1 - C2) t = Valve lifter thickness to be replaced t1 = Removed valve lifter thickness C1 = Measured valve clearance C2 = Standard valve clearance: Intake: 0.30 mm (0.012 in) Exhaust: 0.33 mm (0.013 in) Thickness of new valve lifter (B) can be identified by stamp mark (A) on the under side of the lifter. NOTE: Available thickness of valve lifter: 26 sizes range 3.00 to 3.50 mm (0.1181 to 0.1378 in) in increments of 0.02 mm (0.0008 in) when manufactured at factory. Refer to " «CAMSHAFT»(ref-605933-S21869994452014032500000) ". Stamp mark "302" indicates 3.02 mm (0.1189 in) in thickness.
5. Install the correct thickness valve lifter.
6. Install camshaft. Refer to " «EXPLODED VIEW»(ref-605933-S40974854352014032500000) ".
7. Install timing chain and related parts. Refer to " «EXPLODED VIEW»(ref-605933-S22486553002014032500000) ".
8. Manually rotate crankshaft pulley a few rotations.
9. Check that valve clearances are within specification. Refer to " «INSPECTION»(ref-605933-S23325702802014032500000) ".
10. Install remaining parts in the reverse order of removal.
11. Warm up the engine, and check for unusual noise and vibration.

Scheme 5

Scheme 6

1. Warm up engine and then turn it off.
2. Release fuel pressure. Refer to " «WORK PROCEDURE»(ref-605934-S17108709862014032500000) ".
3. Remove ignition coil and spark plug from each cylinder. Refer to " «EXPLODED VIEW»(ref-605933-S07534786442014032500000) ".
4. Connect engine tachometer (not required in use of CONSULT).
5. Install compression gauge (B) with an adapter (A) (commercial service tool) onto spark plug hole. Use an adapter with a diameter (a) smaller than 20 mm (0.79 in). Otherwise, it may be caught by cylinder head during removal.
6. With accelerator pedal fully depressed, turn ignition switch to START for cranking. When the gauge pointer stabilizes, read the compression pressure and the engine RPM. Perform these steps to check each cylinder. Compression pressure: Refer to " «GENERAL SPECIFICATION»(ref-605933-S05172737932014032500000) ". CAUTION: Always use a fully charged battery to obtain the specified engine speed. If the engine speed is out of the specified range, check the battery. Check the engine speed again with a fully charged battery. If some cylinders have low compression pressure, pour a small amount of engine oil into the spark plug hole to recheck the compression. If the added engine oil improves the compression, the piston rings may be worn or damaged. Check the piston rings and replace if necessary. If the compression pressure remains low despite the addition of engine oil, the valves may be malfunctioning. Check the valves for damage. Replace the valve or valve seat as necessary. If two adjacent cylinders have respectively low compression pressure and their compression remains low even after the addition of engine oil the head gasket may be leaking, or valves in adjacent cylinders may be damaged. Inspect and repair as required. If the compression pressure is below the minimum value, check the valve clearances and parts associated with the combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head gasket). After repairing, measure the compression pressure again.
7. After inspection is completed, install removed parts.
8. Start the engine, and ensure that the engine runs smoothly.
9. Perform trouble diagnosis. If DTC appears, erase it. Refer to " «WORK FLOW»(ref-605934-S19073701342014032500000) ".

Scheme 7

1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source. If necessary, repair or replace these parts. Location of noise Type of noise Operating condition of engine Source of noise Check item Reference Before warm-up After warm-up When starting When idling When racing While driving Top of engine rocker cover cylinder head Ticking or clicking C A - A B - Tappet noise Valve clearance «CAMSHAFT VALVE CLEARANCE»(ref-605933-S25158591012014032500000) Rattle C A - A B C Camshaft bearing noise Camshaft journal oil clearance Camshaft runout «SPARK PLUG»(ref-605933-S31130358612014032500000) Crankshaft pulley cylinder block (side of engine) oil pan Slap or knock - A - B B - Piston pin noise Piston to piston pin oil clearance Connecting rod bushing oil clearance «CYLINDER BLOCK»(ref-605933-S18255715842014032500000) Slap or rap A - - B B A Piston slap noise Piston to cylinder bore clearance Piston ring side clearance Piston ring end gap Connecting rod bend and torsion «CYLINDER BLOCK»(ref-605933-S18255715842014032500000) Knock A B C B B B Connecting rod bearing noise Connecting rod bushing oil clearance Connecting rod bearing oil clearance «CYLINDER BLOCK»(ref-605933-S18255715842014032500000) «BEARING OIL CLEARANCE»(ref-605933-S24107918282014032500000) Knock A B - A B C Main bearing noise Main bearing oil clearance Crankshaft runout «MAIN BEARING»(ref-605933-S31282837182014032500000) «CYLINDER BLOCK»(ref-605933-S18255715842014032500000) Front of engine front cover Tapping or ticking A A - B B B Timing chain and chain tensioner noise Timing chain cracks and wear Timing chain tensioner operation «TIMING CHAIN»(ref-605933-S06358460842014032500000) «TIMING CHAIN»(ref-605933-S06358460842014032500000) Front of engine Squeaking or fizzing A B - B - C Drive belt (Sticking or slipping) Drive belt deflection «DRIVE BELT»(ref-605933-S37284657392014032500000) Creaking A B A B A B Drive belt (Slipping) Idler pulley bearing operation Squall Creak A B - B A B Water pump noise Water pump operation «WATER PUMP»(ref-605935-S37299784852014032500000) A: Closely related B: Related C: Sometimes related -: Not related

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Scheme 9

1. Remove wheel and tire (RH). Refer to " «ADJUSTMENT»(ref-605936-S10289281402014032500000) ".
2. Remove the fender protector (RH) front side clip. Refer to " «EXPLODED VIEW»(ref-605937-S14789021672014032500000) ".
3. Loosen the lock nut (A), and then release the belt tension by turning the adjusting bolt (B).
4. Remove the drive belt.

Scheme 10

1. Pull the idler pulley in the loosening direction, and then temporarily tighten the lock nut (A) to the following torque. Lock nut (A) (Temporary tightening): 4.4 N.m (0.45 kg-m, 39 in-lb) NOTE: Do not move the lock nut from the temporary tightened position. Go to step 2.
2. Install the drive belt on each pulley. CAUTION: Check that there is no oil, grease, or coolant, etc. in pulley grooves. Check that the belt seats securely inside the groove on each pulley.
3. Adjust drive belt tension by turning the adjusting bolt. Refer to " «ADJUSTMENT»(ref-605933-S06631138972014032500000) ". CAUTION: Perform the belt tension adjustment with the lock nut temporarily tightened to the torque specification listed in step 1 which prevents the idler pulley from tilting. When checking immediately after installation, first adjust it to the specified value. Then, after turning crankshaft two turns or more, readjust to the specified value to avoid variation in deflection between pulleys.
4. Tighten the lock nut to final tightening specification. Lock nut (Final tightening): 34.8 N.m (3.5 kg-m, 26 ft-lb)
5. Check that belt tension is within the specification. Refer to " «DRIVE BELT»(ref-605933-S37284657392014032500000) ".

Scheme 11

1. Inspection should be done only when engine is cold or over 30 minutes after the engine is stopped.
2. Visually check belt for wear, damage, and cracks on inside and edges.
3. Turn crankshaft pulley clockwise twice, and check that the tension on all pulleys equalizes before testing.
4. When measuring deflection, apply 98.1 N (10 kg, 22 lb) at the (delta) marked point.
5. Measure the belt tension and frequency with acoustic tension gauge at the (delta) marked point. CAUTION: When the tension and frequency are measured, the acoustic tension gauge should be used. When checking immediately after installation, first adjust it to the specified value. Then, after turning crankshaft two turns or more, readjust to the specified value to avoid variation in deflection between pulleys. Belt deflection/belt tension and frequency: Refer to " «DRIVE BELT»(ref-605933-S37284657392014032500000) ".

Scheme 12

1. Remove the fender protector (RH) front side clip. Refer to " «REMOVAL AND INSTALLATION»(ref-605937-S06682139002014032500000) ".
2. Tighten lock nut (A) temporarily to the following torque. Lock nut (A) (Temporary tightening): 4.4 N.m (0.45 kg-m, 39 in-lb)
3. Adjust the belt tension by turning the adjusting bolt. Refer to " «DRIVE BELT»(ref-605933-S37284657392014032500000) ". CAUTION: When checking immediately after installation, first adjust it to the specified value. Then, after turning crankshaft two turns or more, readjust to the specified value to avoid variation in deflection between pulleys. When the tension adjustment is performed, the lock nut should be in the condition at Step 2. If the tension adjustment is performed when the lock nut is loosened more than the temporary tightening, the idler pulley tilts and the correct tension adjustment cannot be performed.
4. Tighten the lock nut to final tightening specification. Lock nut (Final tightening): 34.8 N.m (3.5 kg-m, 26 ft-lb)

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Scheme 14

1. Unhook clips (A) and pull the air cleaner cover upward (1).
2. Remove the air cleaner filter (1) from the air cleaner body.

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