Nissan GA16i

Nissan GA16iThe Nissan GA16i is a 1.6 liter (1,597 cc, 97.45 cu in) throttle-body fuel-injected straight-four 4-stroke gasoline engine from Nissan GA-family. The GA16i motor was produced from 1987 through 1990.

The Nissan GA16i engine has cast iron block and aluminum alloy cylinder head with a single camshaft and 12 valves (3 per cylinder). The engine is equipped with a throttle-body fuel-injection system.

Cylinder bore and the piston stroke is 76.0 mm (2.99 in) and 88.0 mm (3.46 in), respectively. The compression ratio is 9.4:1. It produced 94 PS (69 kW; 92 HP) at 5,500 rpm of horsepower and 130 Nm (13.26 kg·m; 95.94 ft·lb) at 3,200 rpm of torque.

The breakdown of the engine code is as follows:

  • GA – Engine Family
  • 16 – 1.6 Liter Displacement
  • D – DOHC (Dual Overhead Camshafts)
  • i – Throttle Body Fuel Injection

General information

Engine Specifications
Engine codeGA16i
LayoutFour stroke, Inline-4 (Straight-4)
Fuel typeGasoline
Displacement1.6 L, 1,597 cm3 (97.45 cu in)
Fuel systemThrottle Body Fuel Injection
Power adderNone
Power output 94 PS (69 KW; 92 HP) at 5,500 rpm
Torque output 130 Nm (13.26 kg·m; 95.94 ft·lb) at 3,200 rpm
Firing order1-3-4-2
Dimensions (L x H x W):
Weight330 lbs (150 kg)

Cylinder block

The GA16i motor has a cast-iron cylinder block, cylinder bore is 76.0 mm (2.99 in) and the piston stroke is 88.0 mm (3.46 in), compression ratio 9.4:1. The pistons are each fitted with two compression rings and a single oil ring. The crankshaft for GA16i supported by five main bearings.

Cylinder block
Cylinder block alloyCast iron
Compression ratio:9.4:1
Cylinder bore:76.0 mm (2.992 in)
Piston stroke:88.0 mm (3.465 in)
Number of piston rings (compression / oil):2 / 1 (1 / 1 – for some markets)
Number of main bearings:5
Block Height:213.95-214.05 mm (8.4232-8.4271 in)
Cylinder inner diameter (standard):76.000-76,010 mm (2,9921-2.9925 in)
Piston skirt diameter (standard):75.975-75.985 mm (29911-2.9915 in)
Piston pin outer diameter:18.989-19.001 mm (0.7476-0.7481 in)
Piston ring side clearance:Top0.040-0.080 mm (0.0016-0.0031 in)
Second0.030-0.070 mm (0.0012-0.0028 in)
Piston ring end gap:Top0.20-0.35 mm (0.0079-0.0138 in)
Second0.37-0.52 mm (0.0146-0.0205 in)
Oil0.20-0.60 mm (0.0079-0.0236 in)
Connecting rod center distance:140.45-140.55 mm (5.5295-5.5335 in)
Connectin rod small end inner diameter:19.000-19.012 mm (0.7480-0.7485 in)
Connectin rod big end inner diameter:43.000-43.013 mm (1.6929-1.6934 in)
Crankshaft journal diameter:49.956-49.964 mm (1.9668-1.9671 in)
Crankpin diameter:39.968-39.974 mm (1.5735-1.5738 in)
Crankshaft center distance:43.95-44.05 mm (1.7303-1.7342 in)

Cylinder head

The engine has an aluminum cylinder head with single chain is driven overhead camshaft and twelve valves (three per cylinder). Intake valves are 29.0 mm (1.142 in) in diameter and the exhaust valves are 33 mm (1.299). Intake duration is 221° exhaust duration is 236&deg.

The early versions of GA16i were equipped with manually adjustable rocker arms. North-American market Nissan Sentra`s (1989-1990) received the hydraulic-rockers.

Cylinder head
Cylinder head alloyAluminum
Cylinder head height:120.60-120.80 mm (4.7480-4.7559 in)
Valve Arrangement:DOHC, chain drive
Intake duration:221°
Exhaust duration:236°
Valve head diameter:INTAKE29.0-29.2 mm (1.124-1.150 in)
EXHAUST32.8-33.0 mm (1.291-1.299 in)
Valve length:INTAKE113.25-113.85 mm (4.4587-4.4823 in)
EXHAUST115.97-116.57 mm (4.5657-4.5894 in)
Valve stem diameter:INTAKE5.965-5.980 mm (0.2348-0.2354 in)
EXHAUST6.558-6.570 mm (0.2582-0.2587 in)
Cam height:INTAKE35.993-36.123 mm (1.4147-1.4222 in)
EXHAUST35.746-35.936 mm (1.4073-1.4148 in)
Camshaft journal diameter:41.935-41.955 mm (1.6510-1.6518 in)/td>

Maintenance data

Compression pressure
Standard12.7 kg/cm2 (181 psi) / 350 rpm
Minimun10.0 kg/cm2 (142 psi) / 350 rpm
Compression differential limit between cylinders1 kg/cm2 (0.98 bar, 14 psi) / 350 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 APISE, SF, SG or SH
Engine oil capacity (Refill capacity) With filter change 3.2 l (3-3/8 US qt.)
Without filter change 2.8 l (3 US qt.)
Oil change interval, km (miles)12,000 (7,500)
Oil Pressure, kPa (kg/cm 2, psi) Idle speed: 49-186 (0.5-1.9, 7-27)
3,000 rpm: 392-490 (4.0-5.0, 57-71)
Ignition system
Spark plug Standard: BKPR5ES-11
Spark plug gap1.0-1.1 mm (0.039-0.043 in)
Spark plug torque19.6-29.4 Nm (2.00-3.00 kg⋅m, 14.3-21.7 lb·ft)

Vehicle applications

ModelYears Produced
Nissan Sentra B121987-1990
Nissan Sunny N131987-1990
Nissan EXA N131987-1990
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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  1. Good day, I am looking for fuel injectors for this model, is there any other model vehicle injectors that will work? Thanks.

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