Suzuki J20 (2.0 L, DOHC VVT) Engine: Specs, Review & Service Data

Suzuki J20 Engine Specs

The Suzuki J20 is a 2.0 L (121.74, 1,995 cc) straight-four 4-stroke natural aspirated gasoline engine from the Suzuki J-family. Suzuki Motor Corporation made the J20 engine.

The Suzuki J20 engine features an aluminum cylinder block, four valves per cylinder (16 in total), and an aluminum cylinder head with two overhead camshafts (DOHC).

It has an 84.0 mm (3.31 in) cylinder bore and 90.0 mm (3.54 in) piston stroke. The compression ratio rating is 9.7:1.

The Suzuki J20 engine is fitted with an MPFI (Multi-point fuel injection), ETCS (Electronic Throttle Control System), VVT (Variable Valve Timing) system on the intake side, and electronic ignition system with individual ignition coil for each spark plug.

The Suzuki J20 engine produced 130 PS (127 HP, 95 kW; ) at 6,000 rpm of maximum horsepower and 182 N·m (18.6 kg·m, 134 ft·lb) at 3,000 rpm of maximum torque.

The breakdown of the engine code is as follows:

  • J – Engine family
  • 20 – 2.0 Liter Displacement

Suzuki J20 Engine Specs

Suzuki J20 (2.0 L, DOHC VVT) Engine Specs

Engine Specifications

Engine codeJ20
LayoutFour stroke, Inline-4 (Straight-4)
Fuel typeGasoline (petrol)
Production
Displacement2.0 L, 1,995 cm3 (121.7 cu in)
Fuel systemMulti-point fuel injection (MPFI)
Power adderNone
Power output130 PS (95 kW; 127 HP) at 6,000 rpm
Torque output182 N·m (18.6 kg·m, 134 ft·lb) at 3,000 rpm
Firing order1-3-4-2
Dimensions (L x W x H):
Weight

Cylinder block (Suzuki Grang Vitara specs)

Cylinder block alloyAluminum
Compression ratio:9.7:1
Cylinder bore:84.0 mm (3.31 in)
Piston stroke:90.0 mm (3.54 in)
Number of piston rings (compression / oil):2 / 1
Number of main bearings:5
Cylinder inner diameter (standard):84.000-84.010 mm (3.3071-3.3075 in)
Piston skirt diameter (standard):83.970-83.980 mm (3.3059-3.3063 in)
Piston pin outer diameter:20.997-21.000 mm (0.8267-0.8268 in)
Piston ring side clearance:Top0.030-0.070 mm (0.0012-0.0028 in)
Second0.020-0.060 mm (0.0008-0.0024 in)
Oil0.060-0.150 mm (0.0024-0.0059 in)
Piston ring end gap:Top0.200-0.330 mm (0.0079-0.013 in)
Second0.330-0.480 mm (0.013-0.0189 in)
Oil0.200-0.500 mm (0.0079-0.0197 in)
Crankshaft journal diameter:58.000 mm (2.2835 in)
Crankpin diameter:52.000 mm (2.0472 in)

Crankcase bolts tightening procedure and torque specs:
10 mm

  • Step 1: 40 Nm; 4.0 kg·m; 29.0 ft·lb
  • Step 2: 0 Nm; 0 kg·m; 0 ft·lb
  • Step 3: 40 Nm; 4.0 kg·m; 29.0 ft·lb
  • Step 4: 58 Nm; 4.8 kg·m; 42.0 ft·lb

8 mm

  • Step 1: 26 Nm; 2.6 kg·m; 19.0 ft·lb

After securing bearing cap bolts, make sure crankshaft turns smoothly by hand.

Connecting rod bearing bolts

  • Step 1: 15 Nm; 1.5 kg·m; 11 ft·lb
  • Step 2: Turn bolts 45°
  • Step 3: Turn bolts another 45°

Cylinder head

Valve Arrangement:DOHC, chain drive
Valves:16 (4 valves per cylinder)
Valve head diameter:INTAKE33.0 mm (1.2992 in)
EXHAUST28.0 mm (1.1024 in)
Valve length:INTAKE86.20 mm (3.3937 in)
EXHAUST86.00 mm (3.3858 in)
Valve stem diameter:INTAKE5.965-5.980 mm (0.2348-0.2354 in)
EXHAUST5.940-5.955 mm (0.2339-0.2344 in)
Valve spring free length:51.13 mm (2.013 in)
Camshaft cam height:INTAKE45.669-45.829 mm (1.798-1.8043 in)
EXHAUST45.550-45.710 mm (1.7933-1.7996 in)
Camshaft journal diameter:25.959-25.980 mm (1.022-1.0228 in)

Head tightening procedure and torque specs:
For M6 bolts:

  • Step 1: 11 Nm (1.1 kg·m, 8.0 ft·lb)

For M10 bolts:

  • Step 1: 52 Nm; 5.2 kg·m; 38.0 ft·lb
  • Step 2: 82 Nm; 8.2 kg·m; 59.2 ft·lb
  • Step 3: 0 Nm; 0 kg·m; 0 ft·lb
  • Step 4: 52 Nm; 5.2 kg·m; 38.0 ft·lb
  • Step 5: 103 Nm; 10.3 kg·m; 74.5 ft·lb

Maintenance Data

Valve clearance (Cold)
Intake valve0.18-0.22 mm (0.0071-0.0087 in)
Exhaust valve0.28-0.32 mm (0.011-0.0126 in)
Valve clearance (Hot)
Intake valve0.21-0.27 mm (0.0083-0.0106 in)
Exhaust valve0.30-0.36 mm (0.0118-0.0142 in)
Compression pressure
Standard14.0 kg/cm2 / 200 rpm
Minimun11.0 kg/cm2 / 200 rpm
Compression differential limit between cylinders1.0 kg/cm2 / 200 rpm
Oil system
Oil consumption , L/1000 km (qt. per miles)up to 0.5 (1 qt. per 1200 miles)
Recommended engine oil5W-30, 10W-30
Oil type APISG, SH, SJ, SL or SM
Engine oil capacity (Refill capacity)~ 5.5 L (5.81 US. qt, 4.84 Imp. qt.)
Oil change interval, km (miles)5,000-10,000 (3,000-6,000)
Ignition system
Spark plugNGK: BKR6E-11 (Nickel), IFR5J11 (Iridium); DENSO: K20PR-U11 (Nickel)
Spark plug gap1.0-1.1 mm (0.0394-0.0433 in)
Spark plug tightening torque25 N·m (2.5 kg·m, 18.4 ft·lb)

Vehicle Applications

ModelYears Produced
Chevrolet Tracker1999–2002
Suzuki Escudo1999–2002
Suzuki Vitara / Grand Vitara1999–2002

Also Check:

Final Words

This concludes our discussion of the Suzuki J20 (2.0 L, DOHC VVT) Engine specs and review; however, if you have any questions regarding this article, please submit them in the comment section below. We will do our best to respond to you as soon as possible.

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