The Nissan VE30DE is a 3.0 l (2,960 cc, 180.62 cu.in.) natural aspirated V6 54° 4-stroke gasoline engine from Nissan VE-family. The engine was producted from 1991 to 1994.
The VE30DE features cast-iron block and two aluminum heads with dual overhead camshafts (DOHC) and four valves per cylinder. The Nissan VE30DE engine is equipped with variable valve timing on the intake camshafts, multi-point fuel injection and coil-on-plug ignition. This engine redlines at 6600 rpm.
Compression ratio rating is 10.0:1. Cylinder bore and piston stroke are 87.0 mm (3.43 in) and 83.0 mm (3.27 in), respectively. It produces 190 HP (142 kW, 193 PS) at 5,600 rpm, the torque is 260 Nm (26.5 kg·m, 191.7 lb⋅ft) at 4,000 rpm.
The breakdown of the engine code is as follows:
- VE – Engine Family
- 30 – 3.0 Liter Displacement
- D – DOHC (Dual Overhead Camshafts)
- E – Multi Point Fuel Injection
General information
| Engine Specifications | |
| Engine code | VE30DE |
| Layout | Four stroke, V6 54° |
| Fuel type | Gasoline (petrol) |
| Production | 1991-1994 |
| Displacement | 3.0L, 2,960 cc (180.62 cu in) |
| Fuel system | Multi Point Fuel Injection |
| Power adder | None |
| Power output | 190 HP (142 kW, 193 PS) at 5,600 rpm |
| Torque output | 260 N⋅m (26.5 kg·m, 191.7 lb⋅ft) at 4,000 rpm |
| Firing order | 1-2-3-4-5-6 |
| Dimensions (L x W x H): | – |
| Weight | 220 kg (485 lbs) |
Cylinder block
The VE30DE has a cast-iron block with a four-bearings crankshaft supported system. The cylinder bore is 87.0 mm (3.43 in), piston stroke is 83.0 mm (3.27 in) mm and compression ratio rating is 10.0:1. The Nissan VE30DE motor has two compression and one oil control rings.
| Cylinder block | ||
| Cylinder block alloy | Cast-iron | |
| Compression ratio: | 10.0:1 | |
| Cylinder bore: | 87.0 mm (3.43 in) | |
| Piston stroke: | 83.0 mm (3.27 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Number of main bearings: | 4 | |
| Cylinder inner diameter (standard): | 87.000-87.010 mm (3.4252-3.4256 in) | |
| Piston skirt diameter (standard): | 86.975-86.985 mm (3.4242-3.4246 in) | |
| Piston pin outer diameter: | 21.989-22.001 mm (0.8657-0.8662 in) | |
| Piston ring side clearance: | Top | 0.040-0.080 mm (0.0016-0.0031 in) |
| Second | 0.030-0.063 mm (0.0012-0.0025 in) | |
| Piston ring end gap: | Top | 0.21-0.40 mm (0.0083-0.0157 in) |
| Second | 0.50-0.69 mm (0.0197-0.0272 in) | |
| Oil | 0.20-0.69 mm (0.0079-0.0272 in) | |
| Connecting rod bushing inner diameter: | 22.000-22.006 mm (0.8661-0.8664 in) | |
| Connecting rod big end diameter: | 53.000 mm (2.0866 in) | |
| Connecting rod small end diameter: | 24.980-25.000 mm (0.9835-0.9843 in) | |
| Connecting rod center distance: | 154.1-154.2 mm (6.067-6.071 in) | |
| Crankshaft main journal diameter: | 62.975 mm (2.4763 in) | |
| Crankpin diameter: | 49.974 mm (1.9675 in) | |
| Crankshaft center distance: | 41.47-41.53 mm (1.6327-1.6350 in) | |
Main bearing cap bolts tightening procedure and torque specs:
- 90-100 Nm; 9.2-10.2 kg·m; 67-74 ft·lb in two-three stages
After securing bearing cap bolts, make sure 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° or 59-65 Nm; 6.0-6.6 kg·m; 43-48 ft·lb
Crankshaft pulley bolt
- 167-177 Nm; 17.0-18.0 kg·m; 123-130 ft·lb
Flywheel (M/T) or Drive plate (A/T) fixing bolts
- 83-93 Nm; 8.5-9.5 kg·m; 61-69 ft·lb
Cylinder head
The cylinder head is made of strong, light aluminum alloy which gives it good cooling efficiency. The engine is equipped with Variable Valve Timing system for intake cams. The camshafts are driven by single primary and two secondary chains.
The intake valve diameter is 35.0 mm (1.38 in), the exhaust valve diameter is 30.5 mm (1.20 in), the duration is 248° for both side. The VE30DE is equipped with a hydraulic lash adjuster.
| Cylinder head | ||
| Block head alloy | Aluminium | |
| Valve Arrangement: | DOHC, chain drive | |
| Cylinder head height: | 138.72-138.92 mm (5.6414-5.4693 in) | |
| Valves: | 24 (4 valves per cylinder) | |
| Intake valve timing | 248° | |
| Exhaust valve timing: | 248° | |
| Valve head diameter: | INTAKE | 35.0-35.2 mm (1.378-1.386 in) |
| EXHAUST | 30.5-30.7 mm (1.201-1.209 in) | |
| Valve length: | INTAKE | 110.25-110.75 mm (4.3405-4.3602 in) |
| EXHAUST | 102.45-102.95 mm (4.0335-4.0531 in) | |
| Valve stem diameter: | INTAKE | 5.975-5.980 mm (0.2352-0.2354 in) |
| EXHAUST | 5.955-5.960 mm (0.2344-0.2346 in) | |
| Valve spring free length: | 45.13 mm (1.7768 in) | |
| Camshaft cam height: | INTAKE | 37.678-37.868 mm (1.4834-1.4909 in) |
| EXHAUST | 37.678-37.868 mm (1.4834-1.4909 in) | |
| Camshaft journal diameter: | 25.935-25.955 mm (1.0211-1.0218 in) | |
Head tightening procedure and torque specs:
- Step 1: 39 Nm; 4.0 kg·m; 29 ft·lb
- Step 2: 123 Nm; 12.5 kg·m; 90 ft·lb
- Step 3: Loosen all bolts completely
- Step 4: 34-44 kg·m; 3.5-4.5 kg·m; 25-33 ft·lb
- Step 5: Turn all bolts 65-70° or to 123 Nm; 12.5 kg·m; 90 ft·lb
Camshaft sprocket bolts
- 108-118 Nm; 11.0-12.0 kg·m; 80-87 ft·lb
Maintenance data
| Compression pressure | |
| Standard | 13.0 kg/cm2 (185 psi) / 300 rpm |
| Minimun | 10.0 kg/cm2 (142 psi) / 300 rpm |
| Compression differential limit between cylinders | 1.0 kg/cm2 (15 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 | 5W-30 |
| Oil type API | – |
| Engine oil capacity (Refill capacity) | With filter change 3.8 l (4 US. qt., 3-3/8 Imp. qt.) Without filter change 3.4 l (3-5/8 Us. qt., 3 Imp. qt.) |
| Oil change interval, km (miles) | 5,000-10,000 (3,000-6,000) |
| Ignition system | |
| Spark plug | Standard type: NGK BKR5ES-11 Cold type: NGK BKR7ES-11 |
| Spark plug gap | 1.0-1.1 mm (0.039-0.043 in) |
Vehicle applications
| Model | Years Produced |
| Nissan Maxima (J30) | 1992-1994 |
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