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| Home / Car Engines / Nissan Engines / Nissan CA20E |
Nissan CA20E Engine Specifications
The Nissan CA20E is a 2.0 liter (1,974 cc, 120.45 cubic
inches) straight-4, four-stroke cycle gasoline engine from Nissan
CA-family. The Nissan CA20E motor was produced from 1981 through 1991.
The Nissan CA20E engine has SOHC (single overhead camshaft) design with
two valves per cylinder, cast-iron block, and an aluminum cylinder head;
fully balanced five-bearing crankshaft. The engine is equipped with
Multiport Fuel Injection system, some variants of this engine were
equipped with dual sparkplugs per cylinder (NAPS-X).
The engine has an 84.5 mm (3.327 in) cylinder bore and 88.0 mm
(3.465 in) piston stroke with a compression ratio of 8.5:1. It produced
105 HP (78 kW; 106 PS) of max power at 5,200 rpm and 160 Nm (16.3 kgm;
118.0 lb-ft) of peak torque at 4,000 rpm.
Engine code identification:
CA - Engine Family
20 - 2.0 Liter Displacement
E - Multi Point Fuel Injection
| GENERAL TECHNICAL DATA |
Engine model ............... CA20E
Cylinder layout ............... Four stroke, Inline-4 (Straight-4)
Fuel type ............... Gasoline
Production years ............... 1981-1991
Total displacement ............... 2.0 L, 1,974 cm3 (120.45 cubic
inches)
Fuel system ............... Multiport Fuel Injection
Power adder ............... None
Max. horsepower ............... 105 HP (78 kW; 106 PS) at 5,200 rpm
Max. torque ............... 160 Nm (16.3 kgm; 118.0 lb-ft) at 4,000 rpm
Firing order ............... 1-3-4-2
Dimensions (L x H x W) ............... No data available
Weight ............... No data available
| CYLINDER BLOCK |
The Nissan CA20E motor has a cast-iron cylinder block. The cylinder
block, a monoblock special casting structure, employs a
five-bearing-support system. The engine cylinder bore is 84.5 mm
(3.327 in) and the piston stroke is 88.0 mm (3.465 in), compression
ratio rating is 8.5:1.
The crankshaft is a special steel forging. Fully balanced, it turns out
smooth, dependable power at high speed. The pistons are each fitted with
two compression rings and a single oil ring. The cylinder block height
is 223.30 mm (8.79 in).
Cylinder block alloy ............... Cast iron
Compression ratio ............... 8.5:1
Cylinder bore ............... 84.5 mm (3.327 in)
Piston stroke ............... 88.0 mm (3.465 in)
Number of piston rings (compression / oil) ............... 2 / 1
Number of main bearings ............... 5
Cylinder inner diameter (standard) ............... 84.500-84.560 mm
(3.3268-3.3287 in)
Piston skirt diameter (standard) ............... 84.465-84.515 mm
(3.3254-3.3274 in)
Piston pin outer diameter ............... 19.995-20.000 mm
(0.7872-0.7874 in)
Piston ring side clearance ............... Top ...............
0.040-0.073 mm (0.0016-0.0029 in)
Second ............... 0.030-0.063 mm (0.0012-0.0025 in)
Piston ring end gap ............... Top ............... 0.25-0.61 mm
(0.0098-0.0201 in)
Second ............... 0.15-0.31 mm (0.0059-0.0122 in)
Oil ............... 0.20-0.78 mm (0.0079-0.0229 in)
Connecting rod center distance ............... 149.25-149.35 mm
(5.8760-5.8799 in)
Crankshaft journal diameter ............... 52.951-52.964 mm
(2.0847-2.0852 in)
Crankpin diameter ............... 44.961-44.974 mm (1.7701-1.7706 in)
Crankshaft center distance ............... 43.97-44.03 mm (1.7311-1.7335
in)
| CYLINDER HEAD |
The cylinder head is made of light and strong aluminum alloy with good
cooling efficiency. The valve system has a rocker arm that is activated
directly by the cam mechanism. The camshaft is driven by a timing belt
driven by the crankshaft. Intake valves are 41.0 mm (1.61 in) in
diameter and the exhaust valves are 35.0 mm (1.37 in). The intake valve
duration is 248 deg, valve lift is 10.0 mm (0.39 in); the exhaust valve
duration is 248 deg, valve lift is 10.0 mm (0.39 in).
Valve Arrangement ............... OHV
Valves ............... 8 (2 valves per cylinder)
Intake/Exhaust duration ............... 248 deg/248 deg
Valve head diameter ............... INTAKE ............... 41.0-41.2 mm
(1.614-1.622 in)
EXHAUST ............... 35.0-35.2 mm (1.378-1.386 in)
Valve length ............... INTAKE ............... 106.78-107.20 mm
(4.2039-4.2205 in)
EXHAUST ............... 107.79-108.21 mm (4.2437-4.2802 in)
Valve stem diameter ............... INTAKE ............... 6.965-6.980
mm (0.2742-0.2748 in)
EXHAUST ............... 6.945-6.960 mm (0.2734-0.2740 in)
Valve spring free length ............... INTAKE ............... Outer:
49.98 mm (1.968 in)
Inner: 44.10 mm (1.736 in)
EXHAUST ............... Outer: 49.98 mm (1.968 in)
Inner: 44.10 mm (1.736 in)
Valve lift ............... INTAKE ............... 10.0 mm (0.394 in)
EXHAUST ............... 10.0 mm (0.394 in)
Camshaft cam height ............... INTAKE ............... 38.834-38.884
mm (1.5289-1.5309 in)
EXHAUST ............... 38.834-38.884 mm (1.5289-1.5309 in)
Outer camshaft journal diameter ............... №1-4 ...............
45.935-45.955 mm (1.8085-1.8092 in)
№5 ............... 45.915-45.935 mm (1.8077-1.8085 in)
TIGHTENING TORQUE SPECS
Tightening torque specs
Cylinder head bolt ............... Step 1: 29 Nm; 3.0 kgm; 22 lb-ft
Step 2: 78 Nm; 8.0 kgm; 58 lb-ft
Step 3: Loosen all bolts completely
Step 4: 29 Nm; 3.0 kgm; 22 lb-ft
Step 4: 74-83 Nm; 7.5-8.5 kgm; 54-61 lb-ft
Connecting rod bearing nuts ............... 32-36 Nm; 3.3-3.7 kgm; 24-27
lb-ft
Flywheel bolt ............... 98-108 Nm; 10.0-11.0 kgm; 72-80 lb-ft
Main bearing cap bolt ............... 44-54 Nm; 4.5-5.5 kgm; 33-40 lb-ft
Camshaft sprocket bolt ............... 78-88 Nm; 8.0-9.0 kgm; 57-65
lb-ft
Oil pan ............... 5-7 Nm; 0.5-0.7 kgm; 3.6-5.1 lb-ft
Oil pump ............... 12-16 Nm; 1.2-1.6 kgm; 9-12 lb-ft
Oil pan drain plug ............... 29-39 Nm; 3.0-4.0 kgm; 22-29 lb-ft
Rocker shaft ............... 18-22 Nm; 1.8-2.2 kgm; 13-16 lb-ft
Rocker arm nut ............... 18-22 Nm; 1.8-2.2 kgm; 13-16 lb-ft
Camshaft locate plate ............... 78-88 Nm; 8.0-9.0 kgm; 58-65 lb-ft
Exhaust manifold ............... 20-29 Nm; 2.0-3.0 kgm; 14-22 lb-ft
Fuel injector ............... 2.5-3.2 Nm; 0.25-0.32 kgm; 1.8-2.4 lb-ft
Crank pulley damper bolt ............... 123-132 Nm; 12.6-13.5 kgm;
90-98 lb-ft
| MAINTENANCE DATA |
Valve clearance (HOT)
Intake valve ............... 0.30 mm (0.012 in)
Intake valve ............... 0.30 mm (0.012 in)
Valve clearance (COLD)
Intake valve ............... 0.21 mm (0.008 in)
Exhaust valve ............... 0.23 mm (0.009 in)
Compression pressure
Standard ............... 12.0 kg/cm2 (11.77 bar, 171 psi) / 350 rpm
Minimun ............... 9.0 kg/cm2 (8.83 bar, 128 psi) / 250 rpm
Oil system
Oil consumption , L/1000 km (qt. per miles) ............... up to 0.5 (1
qt. per 1200 miles)
Recommended engine oil ............... 10W-30
20W-40
20W-50
Oil type API ............... SF
Engine oil capacity (Refill capacity) ............... With oil filter:
3.6 l (3-7/8 US qt, 3-1/8 Imp qt)
Without oil filter: 3.2 l (3-3/8 US qt, 2-7/8 Imp qt)
Oil change interval, km (miles) ............... 12,000 (7,500)
Oil pressure, kg/cm2 (psi) ............... 3.0 (43) at 2,000 rpm
Ignition system
Spark plug ............... BCPR6ES-11 (NGK)
Spark plug gap ............... 1.0-1.1 mm (0.039-0.043 in)
Spark plug tightening torque ............... 20-29 Nm; 2.0-3.0 kgm;
14-22 lb-ft
| VEHICLE APPLICATIONS |
Model ............... Years Produced
Nissan 200SX ............... 1984-1988
Nissan Gazelle ............... 1984-1988
Nissan Pintara R31/U12 ............... 1986-1992
Nissan Stanza ............... 1984-1990
Nissan Stanza Wagon / Multi M10 ............... 1982-1988
Nissan Bluebird U12 ............... 1987-1989
Nissan Bluebird T72 ............... 1988-1990
Nissan Pintara ............... 1986-1991
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| Engines Technical Specifications |