Nissan GA15DE

Nissan GA15DE engineThe Nissan GA15DE is a 1.5 liter (1498 cc) inline four, four-stroke cycle gasoline engine from Nissan GA-family.

The Nissan GA15DE has a cast-iron block and aluminum alloy cylinder head with double overhead camshaft, and multi-point fuel injection system.

Cylinder bore and the piston stroke is 73.6 mm (2.898 in) and 88.0 mm (3.465 in), respectively. The compression ratio is 9.9:1. It produces 105 HP (106 PS, 78 kW) at 6,000 rpm and 135 N·m (100 lb·ft) at 4000 rpm.

It was used in the Nissan Sunny B14, Nissan Pulsar N15 and Nissan Presea R11 (Japan Domestic Market, JDM), Nissan Rasheen, Nissan Wingroad / AD Y10.

The breakdown of the engine code is as follows:

  • GA – Engine Family
  • 15 – 1.5 Liter Displacement
  • D – DOHC (Dual Overhead Camshafts)
  • E – Multi Point Fuel Injection

General information

Engine Specifications
Engine codeGA15DE
LayoutFour stroke, Inline-4 (Straight-4)
Fuel typeGasoline
Production
Displacement1.5L, 1498 cc (91.41 cu in)
Fuel systemMulti Point Fuel Injection
Power adderNone
Power output105 HP (106 PS, 78 kW) at 6,000 rpm
Torque output135 N·m (100 lb·ft) at 4000 rpm
Firing order1-3-4-2
Dimensions (L x H x W):
Weight330 lbs (150 kg)

Cylinder block

The GA15DE has a cast-iron cylinder block, bore is 73.6 mm (2.898 in) and stroke is 88.0 mm (3.465 in). The pistons are each fitted with two compression rings and a single oil ring. For some markets, there was a modification with a single compression ring. The crankshaft for GA15DE engine supported by five main bearings. The crankshaft is the same as on the GA16DE engine, but the GA14DE engine has differences in the crankshaft center distance.

Cylinder block
Cylinder block alloyCast iron
Compression ratio:9.9:1
Cylinder bore:73.6 mm (2.898 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):73.600-73.610 mm (2.8976-2.8980 in)
Piston skirt diameter (standard):73.575-73.585 mm (2.8966-2.8970 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 two chain-driven overhead camshafts and sixteen valves (four per cylinder). The GA15DE has two timing chains. Intake valves are 29 mm in diameter, intake duration is 222 °, and the exhaust valves are 24 mm, exhaust duration is 222 °. The GA15DE does not have hydraulic lifters, so special shims are used to adjust the valve clearance.

Cylinder head
Cylinder head alloyAluminum
Cylinder head height:118 mm (4.6456 in)
Valve Arrangement:DOHC, chain drive
Valves:16 (4 valves per cylinder)
Intake/Exhaust duration:222° / 222°
Valve head diameter:INTAKE28.9-29.2 mm (1.138-1.150 in)
EXHAUST23.9-24.2 mm (0.941-0.953 in)
Valve length:INTAKE92.00-92.5 mm (3.6220-3.6417 in)
EXHAUST92.37-92.87 mm (3.6366-3.6563 in)
Valve stem diameter:INTAKE5.465-5.480 mm (0.2152-0.2157 in)
EXHAUST5.445-5.460 mm (0.2144-0.2150 in)
Cam height:INTAKE39.880-40.070 mm (1.5701-1.5776 in)
EXHAUST40.056-40.246 mm (1.5770-1.5845 in)
Outer camshaft journal diameter:№127.935-27.955 mm (1.0998-1.1006 in)
№2-523.935-23.955 mm (0.9423 – 0.9431 in)

Head tightening procedure and torque specs:

  • Step 1: 29.4 Nm; 3.0 kg·m; 22 ft·lb
  • Step 2: 58.8 Nm; 6.0 kg·m; 43 ft·lb
  • Step 3: Loosen all bolts completely
  • Step 4: 29.4 Nm; 3.0 kg·m; 22 ft·lb
  • Step 5: Turn main bolts 50-55° or 58.8 Nm; 6.0 kg·m; 43 ft·lb

Problems and malfunctions

The Nissan GA15DE is reliable and durable. The engine has two timing chains, their service life is about 150,000 miles of mileage (200,000-250,000 km). The valve clearance needs to be adjusted every 30,000 miles of mileage (40,000-50,000 km). The GA15DE motor life expectancy is 200,000 miles of mileage (300,000 km) or more.

Maintenance data

Valve clearance (HOT)
Intake valve0.21-0.49 mm (0.008-0.019 in)
Exhaust valve0.30-0.58 mm (0.012-0.023 in)
Compression pressure
Standard14 kg/cm2 (13.7 bar, 199 psi) / 350 rpm
Minimun12 kg/cm2 (11.8 bar, 171 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
5W-40
10W-30
10W-40
Oil type APISE, SF, SG or SH
Engine oil capacity (Refill capacity) With filter change 3.2 l (3.4 qt.)
Without filter change 2.8 l (3.0 qt.)
Oil change interval, km (miles)5,000-10,000 (3,000-6,000)
Oil Pressure, kPa (bar, kg/cm 2, psi) Idle speed: More than 59 (0.59, 0.6, 9)
2,000 rpm: More than 245 (2.45, 2.5, 36)
6,000 rpm: More than 422 (4.22, 4.3, 61)
Ignition system
Spark plug Standard: BKR5E
Cold: BKR6E, BKR7E
Spark plug gap0.8 – 0.9 mm (0.031 – 0.035 in)
Spark plug torque19.6-29.4 Nm (2.00-3.00 kg⋅m, 14.3-21.7 lb·ft)

Valve clearance adjustment data

Calculate the thickness of new adjusting shim so valve clearance comes within specified values.

R = Thickness of removed shim
N = Thickness of new shim
M = Measured valve clearance

Intake:
N = R + [M – 0.37 mm (0.0146 in)]
Exhaust:
N = R + [M – 0.40 mm (0.0157 in)]

Shims are available in 50 sizes from 2.00 mm (0.0787 in) to 2.98 mm (0.1173 in), in steps of 0.02 mm (0.0008 in).

Example (intake valve):
R = 2.10 mm
M = 0.52 mm
N = 2.10 + (0.52 – 0.37) = 2.25 mm, so we need a shim with code 225 or TS225.

For adjustingFor checking
HotCold*Hot
Intake0.32 – 0.40 (0.013 – 0.016)0.25 – 0.33 (0.010 – 0.013)0.21 – 0.49 (0.008 – 0.019)
Exhaust0.37 – 0.45 (0.015 – 0.018)0.32 – 0.40 (0.013 – 0.016)0.30 – 0.58 (0.012 – 0.023)

*: At a temperature of approximately 20°C (68°F)

Whenever valve clearances are adjusted to cold specifications, check that the clearances satisfy hot specifications and adjust again if necessary.

Vehicle applications

ModelYears Produced
Nissan Sunny B141994-1998
Nissan Pulsar N151995-2000
Nissan Lucino B14, N151994-2000
Nissan Racine B141994-2000
Nissan Presea R11 (JDM)1995-2000
Nissan Rasheen1994-2000
Nissan Wingroad/Nissan AD Y101997-1999
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

8 Comments

  1. i need a brand new/second hand GA15 nissan rasheen 4 by 4 engine and gearbox,i am in Botswana,how much is it???

  2. Great site. Thank you for posting and sharing the information. I will in return help out by clicking as many links as I can. Cheers

  3. I am heaving a problem with nissan GA-15 engine (My cooling fan is automatic due to thermostat valve but when fan starts running,rpm automatically increases about 1500 to 2000,when it stops running rpm goes to normal) you have any solution for it how I solve this problem.
    Thanks

  4. Hi!
    I have GA-15 for Nissan Sunny, damaged valves due to timing chain problem couple of days ago. We have opened the engine and trying to replace new valves but there are no signs on timing chain and nobody knows here how to fix it.
    Kindly send me a diagram or any clue that we can fix it in a right way.

    Thanks

    Rahim

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