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Nissan E13 Specifications
| Engine Model: Nissan E13 |
| Engine Type: 4-cycle inline 4-cylinder OHV 8-valve liquid-cooled gasoline |
| Total Displacement: 77.5 cu.in (1.27 L) |
| Rated Engine Power: 60-70 Hp (45-52 kW) at 5500 rpm |
| Fuel System Type: Downdraft or feedback carburetor |
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- Nissan E15S Engine Specifications
- Nissan E16 Engine Specifications
- Nissan E15ET Engine Specifications
| General Technical Data |
The Nissan E13 engine is a 1.3-liter inline-four gasoline engine belonging to the long-running Nissan E-series, produced through the late 1970s, 1980s, and into the early 1990s. The E-series engines were designed to power compact passenger cars, light hatchbacks, and small sedans where reliability, simplicity, and low running costs were primary engineering goals.
The E13 served as the mid-range displacement
option between the smaller E10/E12 units and the larger E15 versions. It
remained widely used in markets that required dependable everyday
transport with minimal maintenance, and it became especially common in
the Nissan Cherry, Pulsar (N10 and N12), Sunny, and several regional
Datsun-badged models.
The E13 engine is known for its simple overhead-valve valvetrain,
cast-iron block durability, quiet and smooth operation for its class,
and very low fuel consumption. Although performance is modest, the E13
offers excellent serviceability thanks to its mechanical simplicity,
easy-access components, and compatibility with basic diagnostic tools.
Multiple versions of the E13 were produced,
including carbureted, feedback-carbureted, emissions-controlled, and
low-compression variants for specific markets. All versions share the
same fundamental mechanical layout, differing mainly in carburetor
configuration, emissions equipment, intake/exhaust manifolds, and
ignition systems.
The Nissan E13 is a naturally aspirated, inline-four, four-stroke
gasoline engine with a displacement of 1270 cc, or approximately 77.5
cubic inches. The bore is 76.0 mm (2.99 inches), and the stroke is 70.0
mm (2.76 inches). This slightly undersquare design provides balanced
torque delivery at low to mid rpm and contributes to the engine’s
efficiency and durability.
Depending on region and variant, the
compression ratio ranges from 9.0:1 to 9.5:1. Power output generally
falls between 60 and 70 horsepower (45 to 52 kW) at around 5200 to 5600
rpm. Peak torque is usually in the range of 95 to 105 Nm (70 to 77
lb-ft) at approximately 3200 to 3600 rpm. The firing order is 1-3-4-2.
Idle speed is typically specified at 750 ± 50 rpm.
The block is cast iron, designed to provide rigidity, thermal stability,
and long service life. The cylinder bores are integrated into the block
casting, which reduces deformation under temperature changes and high
mileage operation. The crankshaft is forged steel, supported by five
main bearings, ensuring smooth rotation and reduced vibration.
Connecting rods are forged steel, and pistons are made of aluminum
alloy, using two compression rings and one oil-control ring.
The wrist pins are fully floating, allowing for reduced wear and
improved high-mileage reliability. The E13 bottom end is robust, with
conservative bearing clearances and lubrication flow paths that promote
long-term durability even under severe service. The oil pump is
gear-driven from the camshaft, and internal oil galleries distribute
pressurized oil to crankshaft bearings, connecting rod journals, and
valvetrain components.
The cylinder head is cast aluminum alloy for improved heat dissipation.
The valvetrain uses a single camshaft located inside the block,
operating valves through lifters, pushrods, and stamped-steel rocker
arms. Two valves per cylinder—one intake and one exhaust—provide a total
of eight valves.
Valve sizes vary slightly across versions, but
typical intake valve diameter is about 34 mm (1.34 inches), and exhaust
valve diameter is approximately 29 mm (1.14 inches). The combustion
chambers are wedge-shaped, suited to efficient flame travel and reliable
ignition even on low-grade fuel.
Valve clearance must be checked periodically since the engine does not
use hydraulic lifters. Cold valve lash settings are 0.30 mm (0.012
inches) intake and 0.35 mm (0.014 inches) exhaust. The rocker cover is
easily removable, simplifying routine adjustment and inspection.
| Fuel System |
The E13 was produced in several fuel-system
configurations:
- Standard carburetor version (most common)
- Emissions-controlled carburetor versions with vacuum-operated mixture
control
- Feedback-carburetor variant with oxygen-sensor input and electronic
mixture correction
The most widely used variant employs a downdraft Hitachi or Nikki
carburetor with manual or automatic choke, depending on market. Fuel
pressure is supplied by a mechanical pump operated from the camshaft
eccentric. Fuel pressure is low, typically around 20 to 30 kPa (3 to 4
psi). The carburetor includes idle mixture adjustments, accelerator
pump, power valve, and choke assembly depending on specification.
Feedback-type versions use a simple ECU to pulse an air-bleed control
solenoid based on oxygen sensor feedback, improving emissions while
retaining carburetor simplicity. LPG-adapted versions were offered in
certain regions.
| Lubrication System |
The lubrication system is a full-pressure wet-sump type. A gear-driven pump draws oil through a strainer, passes it through a spin-on full-flow oil filter, and distributes it to critical components. Oil capacity with filter is typically 3.2 liters (3.4 US quarts, 2.8 imperial quarts).
Recommended oil viscosity ranges from SAE 10W-30 to 20W-50 depending on
climate and service conditions. Oil pressure at 3000 rpm usually falls
between 300 and 400 kPa (43 to 58 psi), and idle pressure remains above
70 kPa (10 psi).
The PCV (positive crankcase ventilation) system draws crankcase vapors
through a calibrated valve located on the rocker cover, routing them
into the intake system to minimize emissions and maintain clean internal
pressure.
| Cooling System |
The E13 cooling system is a liquid-cooled, forced-circulation design. A belt-driven centrifugal water pump circulates coolant through the block, head, radiator, and heater core. The thermostat begins to open at approximately 82°C (180°F) and is fully open near 95°C (203°F).
Total coolant capacity is roughly 6.0 liters (6.3 US quarts). The system
uses a cross-flow radiator and usually a mechanical cooling fan driven
by the crankshaft, though some later versions use an electric fan.
The system includes a coolant temperature switch for the instrument
panel and an auxiliary sensor for emissions control on certain models.
Coolant should be replaced every 40,000 km (25,000 miles) or every two
years.
| Intake and Exhaust Systems |
The induction system includes an air cleaner housing with a replaceable
paper element, intake snorkel, and resonator to reduce intake noise. The
intake manifold is cast aluminum or cast iron depending on variant.
Runner design emphasizes low-rpm torque and smooth drivability.
The exhaust manifold is cast iron and designed for durability under
continuous heat cycles. Some versions use an air-injection system for
emissions control. Catalytic converters were introduced on later
emissions-controlled variants.
| Ignition and Electrical System |
Ignition is through a distributor-based system. Early variants use
breaker-point ignition, while later versions adopt electronic ignition
with a reluctor and pickup coil inside the distributor. The ignition
coil is mounted externally, supplying high voltage to the distributor
cap and rotor. Spark plugs are typically NGK BPR5ES or equivalent,
gapped at approximately 0.9 to 1.0 mm (0.035 to 0.039 inches).
The alternator output ranges from 35 to 55 amperes depending on model.
The starter motor is a reduction-gear type designed for reliable
cranking. Electrical system voltage is 12 V DC.
| Other Systems |
The E13 engine may include the following
systems depending on market:
- EGR valve for NOx reduction
- Charcoal canister and evaporative emissions control
- Air-injection pump (certain early models)
- Feedback control for carburetor adjustment
- Idle-up solenoid for air-conditioning-equipped vehicles
All systems are simple and easy to diagnose without advanced equipment.
| Dimensions and Weight |
Length: 610 mm (24.0 inches)
Width: 520 mm (20.5 inches)
Height: 650 mm (25.6 inches)
Dry weight ranges from 105 to 115 kg (231 to 254 lbs) depending on
accessories. The layout is optimized for transverse front-wheel-drive
installation but was also used longitudinally in some regional
applications.
| Maintenance Data |
Routine service includes oil and filter changes every 5000 to 7500 km (3000 to 4500 miles). Air filter replacement every 20,000 km (12,000 miles). Fuel filter replacement every 20,000 km. Spark plug replacement every 20,000 to 30,000 km. Valve lash adjustment every 20,000 km.
Coolant replacement every 40,000 km. Timing belt replacement every 100,000 km (60,000 miles). Compression pressure for a healthy engine ranges from 1300 to 1500 kPa (189 to 218 psi) with no more than 100 kPa (15 psi) variation between cylinders.
| Tightening Torques |
Cylinder head bolts: 88 Nm (65 lb-ft).
Main bearing cap bolts: 78 Nm (58 lb-ft).
Connecting rod bolts: 44 Nm (33 lb-ft).
Rocker shaft bolts: 25 Nm (18 lb-ft).
Spark plugs: 20 Nm (15 lb-ft).
Flywheel bolts: 88 Nm (65 lb-ft).
Oil drain plug: 35 Nm (26 lb-ft).
Intake manifold bolts: 25 Nm (18 lb-ft).
Exhaust manifold bolts: 35 Nm (26 lb-ft).
| Vehicle Applications |
The E13 engine powered several Nissan models including the Nissan Pulsar/Cherry (N10 and N12), Nissan Sunny (B11), and various Datsun-badged compact cars. In these lightweight platforms, the engine provided reliable performance and excellent fuel economy. Some markets also used the E13 in small commercial vehicles and regional derivatives.
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