The Nissan KA24DE is a 2.4 l (2,389 cc, 145.79 cu-in) straight-4, four-stroke cycle gasoline engine from Nissan KA-family. The Nissan KA24DE motor was manufactured from 1991 through 2016 in Aguascalientes, Mexico for US market, and in Yokohama, Kanagawa, Japan.
The Nissan KA24DE engine has DOHC (double overhead camshaft) design with 16 valves (4 per cylinder). The engine used a cast-iron cylinder block and aluminum cylinder head. The engine is equipped with a sequential electronic fuel injection system, ignition timing control system, and EGR system. The KA24DE-A is an Altima-specific model of the KA24DE. The head and block are non-interchangeable between all other models and are uniquely cast for front-wheel-drive operation.
An 89 mm (3.5 in) cylinder bore and 96 mm (3.78 in) piston stroke give the motor a total of 2,389 cc of displacement. The compression ratio is 9.5:1 for Nissan 240SX, and 9.2:1 or 9.3:1 for trucks. The KA24DE engine produced up to 159 PS (116 kW; 155.0 HP) at 5,600 rpm of maximum horsepower and up to 217 N·m (22.1 kg·m, 159.9 ft·lb) at 4,400 rpm of maximum torque.
The breakdown of the engine code is as follows:
- KA – Engine Family
- 24 – 2.4 Liter Displacement
- D – DOHC
- E – Multi Point Fuel Injection
General information
| Engine Specifications | |
| Engine code | KA24DE |
| Layout | Four stroke, Inline-4 (Straight-4) |
| Fuel type | Gasoline |
| Production | 1991-2016 |
| Displacement | 2.4 L, 2,389 cm3 (145.79 cu in) |
| Fuel system | Electronic fuel injection system |
| Power adder | None |
| Max. horsepower | From 145 PS (107 kW; 143 HP) at 4,300 rpm to 159 PS (116 kW; 155 HP) at 5,600 rpm |
| Max. torque | From 208 N·m (21.2 kg·m, 153.3 ft·lb) at 3,600 rpm to 217 N·m (22.1 kg·m, 159.9 ft·lb) at 4,400 rpm |
| Firing order | 1-3-4-2 |
| Dimensions (L x H x W): | – |
| Weight | – |
Cylinder block
The Nissan KA24DE motor has a cast-iron cylinder block, cast steel connecting rods, a half-counterweighted forged steel crankshaft. The KA24E engine cylinder bore is 89.0 mm (3.5 in) and the piston stroke is 96 mm (3.78 in).
| Cylinder block | ||
| Cylinder block alloy | Cast iron | |
| Compression ratio: | 9.5:1, 9.3:1, 9.2:1 | |
| Cylinder bore: | 89.0 mm (3.50 in) | |
| Piston stroke: | 96.0 mm (3.78 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Number of main bearings: | 5 | |
| Cylinder inner diameter (standard): | 89.000-89.010 mm (3.5039-3.5043) in) | |
| Piston skirt diameter (standard): | 88.970-88.980 mm (3.5027-3.5031 in) | |
| Piston pin outer diameter: | 20.989-21.001 mm (0.8263.0.8268 in) | |
| Piston ring side clearance: | Top | 0.040-0.080 mm (0.0016-0.0031 in) |
| Second | 0.030-0.070 mm (0.0012-0.0028 in) | |
| Piston ring end gap: | Top | 0.280-0.520 mm (0.011-0.0205 in) |
| Second | 0.450-0.690 mm (0.0177-0.0272 in) | |
| Oil | 0.200-0.690 mm (0.0079-0.0272 in) | |
| Connecting rod center distance: | 164.95-165.05 mm (6.4941-6.498 in) | |
| Crankshaft journal diameter: | 59.967-59.975 mm (2.3609-2.3612 in) | |
| Crankpin diameter: | 49.968-49.974 mm (1.9672-1.9675 in) | |
| Crankshaft center distance: | 47.97-48.03 mm (1.8886-1.8909 in) | |
main bearing beam bolts tightening procedure and torque specs:
- 46-52 Nm; 4.7-5.3 kg·m; 34-38 ft·lb in two-three stages
After securing bearing cap bolts, make sure the crankshaft turns smoothly by hand.
Connecting rod bearing nut
- Step 1: 14-16 Nm; 1.4-1.6 kg·m; 10-12 ft·lb
- Step 2: Turn nuts 60-65°
Crankshaft pulley bolt
- 118-157 Nm; 12-16 kg·m; 87-116 ft·lb
Flywheel (M/T) or Drive plate (A/T) fixing bolts
- 93-103 Nm; 9.5-10.5 kg·m; 69-76 ft·lb
Cylinder head
The cylinder head is made of aluminum alloy. The Nissan KA24DE motor use four valves per cylinder (two intake valves and two exhaust valves). The intake valves are 36.6 mm (1.44 in) in diameter and the exhaust valves are 31.3 mm (1.23 in).
The camshaft is driven by a roller chain driven by the crankshaft. The tension of the chain is controlled by a chain tensioner which is operated by spring and oil pressure.
| Cylinder head | ||
| Valve Arrangement: | DOHC, chain drive | |
| Valves: | 16 (4 valves per cylinder) | |
| Valve head diameter: | INTAKE | 36.5-36.7 mm (1.437-1.4449 in) |
| EXHAUST | 31.2-31.4 mm (1.2283-1.2362 in | |
| Valve length: | INTAKE | 101.020-101.620 mm (3.9772-4.0008 in) |
| EXHAUST | 98.520-99.720 mm (3.8787-3.926 in) | |
| Valve stem diameter: | INTAKE | 6.965-6.980 mm (0.2742-0.2748 in) |
| EXHAUST | 6.945-6.960 mm (0.2734-0.274 in) | |
| Valve spring free length: | INTAKE | 44.6 mm (1.7559 in) |
| EXHAUST | 44.6 mm (1.7559 in) | |
| Camshaft journal diameter: | №1: 27.935-27.955 mm (1.0998-1.1006 in) Other: 23.935-23.955 mm (0.9423-0.9431 in) | |
Maintenance data
| Valve clearance* | |
| Intake valve clearance (HOT): | 0.31-0.39 mm (0.0122-0.0154 in) |
| Exhaust valve clearance (HOT): | 0.33-0.41 mm (0.013-0.0161 in) |
| Compression pressure | |
| Standard | 1.236 kPA; 12.6 kg/cm2; 179 psi / 300 rpm |
| Minimun | 1,040 kPA; 10.6 kg/cm2; 151 psi / 300 rpm |
| Differential limit between cylinders | 98 kPA; 1.0 kg/cm2; 14 psi / 300 rpm |
| Oil system | |
| Oil consumption , L/1000 km (qt. per miles) | up to 0.5 (1 qt. per 1200 miles) |
| Recommended engine oil | SAE 5W-30,10W-30, 10W-40 |
| Oil type API | SG |
| Engine oil capacity (Refill capacity) | With oil filter: 3.8 liters (4.02 US.qts, 3.34 Imp. qts) Without oil filter: 3.5 liters (3.7 US.qts, 3.08 Imp. qts) |
| Oil change interval, km (miles) | 10,000 (6,000) |
| Oil pressure | 412-481 kPA; 4.2-4.9 kg/cm2 (60-70 psi) at 3,000 rpm |
| Ignition system | |
| Spark plug | NGK: BKR5E-11, BKR6E-11, BKR7E-11 |
| Spark plug gap | 1.0-1.1 mm (0.039-0.043 in) |
| Spark plug tightening torque | 20-29 Nm; 2.0-3.0 kg·m; 14-22 ft·lb |
*-Shims are available in 37 sizes from 1.96 mm (0.0772 in) to 2.68 mm (0.1055 in), in steps of 0.02 mm (0.0008 in)
Vehicle applications
| Model | Years Produced |
| Nissan Xterra | 2000-2004 |
| Nissan Navara (D22) | 1998-2016 |
| Nissan Frontier (D22) | 1998-2016 |
| Nissan 240SX | 1991-1998 |
| Nissan R’nessa (4WD, JDM) | 1997-2000 |
| Nissan Presage U30 (JDM) | 1998-2001 |
| Nissan Bassara U30 (JDM) | 1999-2001 |
| Nissan Bluebird U13 | 1993-1997 |
| Isuzu COMO | – |
| Nissan Terrano II | 1993-1996 |
| Nissan Largo | – |
| Nissan Altima (KA24DE-A) | 1993-2001 |
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