The Nissan CR14DE is a 1.4 l (1,386 cc, 84.57 cu.in.) straight-four 4-stroke natural aspirated gasoline engine from Nissan CR-family.
The CR14DE features a lightweight aluminum block with five-bearings crankshaft and aluminum head with two camshafts (DOHC) and four valves per cylinder. The CR14DE engine has an electronic throttle, variable valve timing system VTC on the intake camshaft, EGR system, and electronic ignition with individual coils on each spark plug.
Compression ratio rating is 9.8 or 9.9:1. Cylinder bore and piston stroke are 73.0 mm (2.874 in) and 82.8 mm (3.260 in), respectively. It produces from 88 to 98 PS (65-72 kW; 64-71 HP) of horsepower and 136 to 137 Nm (13.9-14.0 kg⋅m, 100.3-101.0 lb⋅ft) of torque.
The breakdown of the engine code is as follows:
- CR – Engine Family
- 14 – 1.2 Liter Displacement
- D – DOHC (Dual Overhead Camshafts)
- E – Multi Point Fuel Injection
|Layout||Four stroke, Inline-4 (Straight-4)|
|Fuel type||Gasoline (petrol)|
|Displacement||1.4 l, 1,386 cm3, (84.57 cu.in.)|
|Fuel system||Multi Point Fuel Injection|
88 PS (65 kW; 87 HP) at 5,600 rpm
97 PS (71 kW; 96 HP) at 5,600 rpm
97 PS (72 kW; 97 HP) at 6,000 rpm
136 Nm (13.9 kg⋅m, 100.3 lb⋅ft) at 3,200 rpm
137 Nm (14.0 kg⋅m, 101.0 lb⋅ft) at 3,200 rpm
|Dimensions (L x W x H):||–|
|Weight||130 kg (264 lbs)|
The Nissan CR14DE has an aluminum block with a five-bearings crankshaft supported system. The cylinder bore is 73.0 mm (2.874 in), piston stroke is 82.8 mm (3.260 in) and compression ratio rating is 9.8:1 or 9.9:1. The CR14DE motor has two compression and single oil control rings.
The connecting rods center distance is 129.5 mm (5.098 in). The crankshaft main journal diameter is 44.97 mm (1.77 in) and crankpin diameter is 39.97 mm (1.53 in). The piston height is 32.3 mm (1.272 in).
|Cylinder block alloy||Aluminium|
|Compression ratio:||9.8:1 or 9.9:1|
|Cylinder bore:||73.0 mm (2.874 in)|
|Piston stroke:||82.8 mm (3.260 in)|
|Number of piston rings (compression / oil):||2 / 1|
|Number of main bearings:||5|
|Cylinder inner diameter (standard):||73.000-73.010 mm (2.8740-2.8744 in)|
|Piston skirt diameter (standard):||72.980-72.990 mm (2.8732-2.8736 in)|
|Piston pin outer diameter:||17.996-18.000 mm (0.7085-0.7087 in)|
|Piston ring side clearance:||Top||0.040-0.080 mm (0.0016-0.0031 in)|
|Second||0.025-0.070 mm (0.0010-0.0028 in)|
|Oil||0.030-0.140 mm (0.0021-0.0055 in)|
|Piston ring end gap:||Top||0.18-0.33 mm (0.0071-0.0130 in)|
|Second||0.50-0.65 mm (0.020-0.026 in)|
|Oil||0.20-0.70 mm (0.0079-0.0276 in)|
|Connecting rod bushing inner diameter:||17.962-17.978 mm (0.7072-0.7078 in)|
|Connecting rod big end diameter:||43.000-43.013 mm (1.6929-1.6934 in)|
|Connecting rod center distance:||129.45-129.55 mm (5.096-5.100 in)|
|Crankshaft main journal diameter:||44.970 mm (1.7705 in)|
|Crankpin diameter:||39.974 mm (1.5738 in)|
Main bearing cap bolts tightening procedure and torque specs:
- Step 1: 24.5-30.3 Nm; 2.5-3.0 kg·m; 18-22 ft·lb
- Step 2: Turn all bolts 95-100°
After securing bearing cap bolts, make sure crankshaft turns smoothly by hand.
Connecting rod bearing nut
- Step 1: 13.7-15.7 Nm; 1.4-1.6 kg·m; 10-11.5 ft·lb
- Step 2: Turn nuts 45-50°
Crankshaft pulley bolt
- 132-152 Nm; 14-15 kg·m; 98-112 ft·lb
Flywheel (M/T) or Drive plate (A/T) fixing bolts
- Flywheel: 83-93 Nm; 8.5-9.5 kg·m; 61-69 ft·lb
- Drive plate: 93-103 Nm; 9.5-10.0 kg·m; 69-75 ft·lb
The cylinder head is made of light aluminum alloy, each camshaft is supported by five bearings. The CR14DE engine is equipped with an intake valve timing controller (integral with cam sprocket) which continuously adjusts the phase of intake valve according to driving conditions, improves both low and mid-range engine torque and high-speed range engine output, and brings about low emission and low fuel consumption. The camshafts are driven by the timing chain.
Intake valves are 27.5 mm (1.083 in) in diameter, intake duration is 224°, and the exhaust valves are 22.5 mm (0.886 in), exhaust duration is 216°. The Nissan CR14DE motor does not have hydraulic lifters, so special valve lifters are used to adjust the valve clearance.
The engine has a plastic intake manifold. The CR14DE is equipped with EGR (Exhaust Gas Recirculation) system. This system returns a portion of the exhaust gas to the intake side to reduce fuel consumption and minimize emission.
|Valve Arrangement:||DOHC, chain drive|
|Cylinder head height:||121.2 mm (4.77 in)|
|Valves:||16 (4 valves per cylinder)|
|Valve head diameter:||INTAKE||27.4-27.6 mm (1.079-1.087 in)|
|EXHAUST||22.4-22.6 mm (0.882-0.890 in)|
|Valve length:||INTAKE||97.85 mm (3.8524 in)|
|EXHAUST||97.92 mm (3.8551 in)|
|Valve stem diameter:||INTAKE||5.465-5.480 mm (0.2152-0.2157 in)|
|EXHAUST||5.455-5.470 mm (0.2148-0.2154 in)|
|Valve spring free length:||53.5 mm (2.098 in)|
|Camshaft cam height:||INTAKE||40.359-40.549 mm (1.5889-1.5964 in)|
|EXHAUST||39.743-39.933 mm (1.5647-1.5722 in)|
|Camshaft journal diameter:||№1||27.935-27.955 mm (1.0998-1.1006 in)|
|№2, 3, 4, 5||23.450-23.470 mm (0.9232-0.9240 in)|
Head tightening procedure and torque specs:
- Step 1: 61.7-71.7 Nm; 6.3-7.3 kg·m; 46-52 ft·lb
- Step 2: Loosen all bolts completely
- Step 3: 22.5-32.5 kg·m; 2.3-3.3 kg·m; 17-23 ft·lb
- Step 4: Turn all bolts 90-95°
Camshaft sprocket bolts
- 78-88 Nm; 8.0-9.0 kg·m; 58-65 ft·lb
Problems and malfunctions
The main problem of this engine is the loss of power, rough idle. It happens because of the front catalytic converters. They wear out because of poor quality fuel, and their ceramic dust through the EGR system is absorbed by the engine. As a result, it grinds the cylinder walls, and then the dust gets into the oil system and spreads all over the engine.
|Valve clearance (HOT)|
|Intake valve||0.314-0.426 mm (0.012-0.017 in)|
|Exhaust valve||0.338-0.462 mm (0.013-0.018 in)|
|Standard||14.1 kg/m2 (201 psi) / 250 rpm|
|Minimun||12.1 kg/m2 (172 psi) / 250 rpm|
|Compression differential limit between cylinders||1.0 kg/m2 (15 psi) / 250 rpm|
|Oil consumption , L/1000 km (qt. per miles)||up to 0.5 (1 qt. per 1200 miles)|
|Recommended engine oil||
For warm and cold areas: 10W-30
For hot areas: 20W-40 or 20W-50
For improve fuel economy: 5W-30
|Oil type API||SG, SH or SJ|
|Engine oil capacity (Refill capacity)||
With filter change 3.0 l (2-5/8 qt)
Without filter change 2.8 l (2-1/2 qt.)
|Oil change interval, km (miles)||15,000 (9,000)|
|Oil Pressure, kPa (bar, kg/cm 2, psi)||
Idle speed: More than 60 (0.6, 0.61, 9)
2,000 rpm: More than 200 (2.0, 2.0, 29)
Standard type:NGK: LFR5AP-11, Champion: REC10PYC4
Hot type:NGK: LFR4AP-11
Cold type:NGK: LFR6AP-11
|Spark plug gap||1.1 mm (0.043 in)|
Valve clearance adjustment data
Calculate the thickness of new adjusting valve lifter so valve clearance comes within specified values.
R = Thickness of removed valve lifter
N = Thickness of new valve lifter
M = Measured valve clearance
N = R + [M – 0.30 mm (0.012 in)]
N = R + [M – 0.33 mm (0.013 in)]
Valve lifters are available in 35 sizes range from 3.00 mm (0.1181 in) to 3.68 mm (0.1449 in), in steps of 0.02 mm (0.0008 in).
Example (intake valve):
R = 3.10 mm
M = 0.52 mm
N = 3.10 + (0.52 – 0.30) = 3.32 mm, so we need a valve lifter with identification mark 32.
|Intake||0.29-0.37 mm (0.011-0.015 in)||0.314-0.426 mm (0.012-0.017 in)|
|Exhaust||0.32-0.40 mm (0.013-0.016 in)||0.338-0.462 mm (0.013-0.018 in)|
|Nissan March K12||2002-|
|Nissan Micra K12||2002-|
|Nissan Cube Z11||–|
|Nissan Note E11 (Europe)||–|
We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.
I’m trying to get the torque settings for nissan micra cr 1.4 engine model 2007
Cylinder head and the cam Timming .
Can you assist please?
I tried googling, no joy.
Sent by email
I just wanna know if any cr12de or cr14de is semi-closed deck??
cr14de için yağ filtresi tipi ne olmalı acaba
what is the fuel pressure rating
nisan march cr14, felling to start, sometimes it starts and cuts its self. What could be the problem? Please help me.