Renault E5F Specifications
| Engine Model: Renault E5F |
| Engine Type: 4-cycle inline 4-cylinder SOHC 8-valve liquid-cooled gasoline |
| Total Displacement: 71.5 cu.in (1.17 L) |
| Rated Engine Power: 53-59 Hp (40-44 kW) at 6000 rpm |
| Fuel System Type: Single-Point Fuel Injection |
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The Renault E5F is a 1.2-liter naturally aspirated
inline-four gasoline engine belonging to the Energy engine family. Introduced in
the early 1990s, this powerplant was developed to replace the aging Cleon-Fonte
series of overhead-valve engines that had served Renault’s small cars for
decades. The E5F represented a modernization of Renault’s entry-level
powertrain, incorporating a single overhead camshaft (SOHC) design and a
hemi-spherical combustion chamber to deliver improved efficiency, smoother
operation, and reduced emissions compared to its pushrod predecessors.
The Energy engine family, of which the E5F was a member, was engineered during a
period when European manufacturers were transitioning from carburetors to
electronic fuel injection and from antiquated valvetrain designs to more
efficient overhead-cam configurations. The E5F utilized a cast iron cylinder
block for durability and an aluminum alloy cylinder head for weight reduction.
A single-point fuel injection (monopoint) system replaced the carburetors found
on earlier engines, providing more consistent fuel delivery across varying
operating conditions and enabling compliance with tightening European emission
standards.
The E5F was designed primarily for urban and light-duty applications,
prioritizing fuel economy and low-end tractability over peak power output. Its
1,171 cc displacement and modest power output of 54 to 60 horsepower made it
well-suited for entry-level versions of Renault’s small car lineup.
The engine’s compact dimensions and straightforward mechanical layout
contributed to ease of service, a characteristic valued in the economy car
segment. The E5F remained in production throughout the first-generation Renault
Clio’s lifespan and was also utilized in base-model Renault 19 exports,
eventually being succeeded by the lighter, more compact D-Type (D7F) engine as
Renault continued its powertrain evolution.
The engine operates on a four-stroke Otto cycle with a naturally aspirated
induction method. It is configured for transverse, front-engine,
front-wheel-drive applications within Renault’s small car platforms. Engine
management is controlled by a Renault ECU utilizing a single-point fuel
injection system.
Engine Type: Inline-4, water-cooled, 4-stroke.
Displacement: 1,171 cc (71.5 cu.in).
Bore x Stroke: 75.8 mm x 64.9 mm (2.98 in x 2.56 in).
Compression Ratio: 9.25:1.
Firing Order: 1-3-4-2.
Ignition System: Electronic, distributor-equipped with integrated ignition
module.
Idle Speed: 800 ± 50 rpm (in neutral).
Maximum Power: 40-44 kW (53-59 hp) @ 6,000 rpm.
Maximum Torque: 88-90 Nm (65-66 lb-ft) @ 3,500 rpm.
Redline: 6,500 rpm.
The cylinder block is constructed from cast iron with
an open-deck design, providing a durable foundation for the engine’s intended
service life. The block incorporates five main bearings to support the
crankshaft. The design emphasizes durability over weight reduction, consistent
with the engine’s positioning in economy vehicle applications.
Cylinder Bore Diameter: 75.8 mm (2.98 in)
Main Bearing Journal Diameter: 52.0 mm (2.05 in)
Piston Material: Aluminum alloy with a standard skirt profile
Crankshaft: Cast iron, fully counter-weighted with four balance weights
Connecting Rods: Forged steel with a conventional machined cap interface
Cylinder Block Construction: Cast iron with cast-in-place cylinder bores
The cylinder head is manufactured from aluminum alloy
and houses the SOHC valvetrain. The combustion chamber features a hemi-spherical
design, a hallmark of the Energy engine family that contributed to improved
volumetric efficiency and combustion characteristics compared to earlier
wedge-head designs. The valvetrain utilizes rocker arms to actuate the eight
valves from a single camshaft.
Valvetrain: SOHC, belt-driven, with 8 valves total (2 valves per cylinder).
Valve actuation is via rocker arms with threaded adjusters for clearance
setting.
Intake Valve Diameter: 34.0 mm (1.34 in).
Exhaust Valve Diameter: 29.0 mm (1.14 in).
Valve Lift (Intake): 8.5 mm (0.335 in).
Valve Lift (Exhaust): 8.5 mm (0.335 in).
Valve Seat Material: Sintered alloy for intake and exhaust seats.
Valve Clearance Adjustment: Manual adjustment using threaded rocker arm screws
with lock nuts.
Camshaft Drive: Toothed rubber timing belt with a spring-loaded automatic
tensioner.
The fuel system utilizes a single-point fuel injection
(monopoint) configuration, also known as throttle-body injection. A single fuel
injector mounted in the throttle body delivers fuel into the intake air stream
upstream of the throttle plate. This system represents a transitional technology
between carburetion and multi-point injection, offering improved fuel
distribution and cold-start characteristics over carburetors while maintaining
lower complexity than sequential multi-point systems.
Fuel Injector: Single solenoid-type injector mounted in the throttle body
assembly. Fuel Pressure: 250-300 kPa (36-44 psi). Intake Manifold: Aluminum or
composite resin construction with a single plenum chamber feeding all four
cylinders. Throttle Body: Cable-actuated throttle with integrated idle air
control (IAC) valve. Fuel Requirement: Minimum octane rating of 91 RON (Research
Octane Number) / 87 AKI (Anti-Knock Index).
The lubrication system is a fully pressurized wet-sump
design. A gear-type oil pump, driven directly by the crankshaft, circulates oil
throughout the engine. The system incorporates a full-flow oil filter with an
integral bypass valve.
Oil Pump Type: Gear-type pump.
Recommended Oil Viscosity: 10W-40 or 15W-40, mineral or semi-synthetic.
Oil Capacity (with filter change): 3.5 liters (3.7 qt).
Oil Capacity (without filter change): 3.2 liters (3.4 qt).
Oil Pressure (at 3,000 rpm, warm): 300-400 kPa (43.5-58.0 psi).
Oil Pan Material: Stamped steel.
The cooling system is a pressurized design utilizing a
centrifugal water pump driven by the engine’s accessory drive belt. A wax-type
thermostat regulates coolant flow. The system is designed for adequate cooling
in urban driving conditions.
Coolant Type: Ethylene-glycol based antifreeze
Coolant Capacity (engine and radiator): 5.0 liters (5.3 qt)
Thermostat Opening Temperature: 82-88 °C (180-190 °F)
Radiator Cap Pressure: 90-110 kPa (13.1-16.0 psi)
Water Pump Type: Centrifugal with a mechanical seal
Timing Drive: Toothed rubber timing belt with a
spring-loaded automatic tensioner. The belt drives the camshaft from the
crankshaft sprocket. The engine is an interference design; valve-to-piston
contact occurs if the timing belt fails while the engine is running, resulting
in internal damage.
Accessory Drive: Multiple V-belts driving the alternator, water pump, and air
conditioning compressor. Belt tension is adjusted manually via accessory
mounting adjustments.
Emission Control System: Includes a three-way catalytic converter, heated oxygen
sensor, a Positive Crankcase Ventilation (PCV) system, and an evaporative
emissions control system. The engine complies with Euro 2 or equivalent regional
emission standards for its production period.
Engine Management System: Renault ECU with integrated ignition control, fuel
injection logic, and idle speed control. The ECU utilizes a MAP (Manifold
Absolute Pressure) sensor or MAF (Mass Air Flow) sensor for load detection
depending on market variant.
Overall Length: 550 mm (21.7 in)
Overall Width: 580 mm (22.8 in)
Overall Height: 660 mm (26.0 in)
Dry Weight (complete engine): 95 kg (209 lb)
Valve Clearance (Intake): 0.15-0.25 mm (0.006-0.010
in).
Valve Clearance (Exhaust): 0.20-0.30 mm (0.008-0.012 in).
Inspection Interval: Every 40,000 km (25,000 miles).
Timing Belt Replacement Interval: 60,000 km (37,000 miles) or 4 years, whichever
occurs first.
Spark Plug Type: NGK BKR6E or equivalent.
Spark Plug Gap: 0.8-0.9 mm (0.031-0.035 in).
Spark Plug Replacement Interval: 30,000 km (18,000 miles).
Engine Oil Change Interval: 10,000 km (6,000 miles) or 12 months.
Engine Oil Filter Change Interval: With every oil change.
Coolant Replacement Interval: 60,000 km (37,000 miles) or 3 years.
Drive Belt Inspection: Every 10,000 km (6,000 miles) for cracks, fraying, and
tension.
Air Filter Element: Replace every 40,000 km (25,000 miles).
Fuel Filter Replacement: Inline fuel filter should be replaced every 40,000 km
(25,000 miles).
Cylinder Head Bolts, Step 1: 20 Nm (15 lb-ft)
Cylinder Head Bolts, Step 2: 40 Nm (30 lb-ft)
Cylinder Head Bolts, Step 3: 60 Nm (44 lb-ft)
Cylinder Head Bolts, Step 4: 80 Nm (59 lb-ft)
Main Bearing Cap Bolts: 50 Nm (37 lb-ft)
Connecting Rod Cap Nuts: 35 Nm (26 lb-ft)
Camshaft Bearing Cap Bolts: 20 Nm (15 lb-ft)
Rocker Arm Shaft Bolts: 20 Nm (15 lb-ft)
Intake Manifold Nuts: 15 Nm (11 lb-ft)
Exhaust Manifold Nuts: 25 Nm (18 lb-ft)
Oil Pan Bolts: 12 Nm (9 lb-ft)
Valve Cover Bolts: 8 Nm (6 lb-ft)
Spark Plugs: 25 Nm (18 lb-ft)
Crankshaft Pulley Bolt: 120 Nm (89 lb-ft)
Flywheel / Drive Plate Bolts: 65 Nm (48 lb-ft)
The Renault E5F engine was utilized primarily in
Renault’s small car lineup throughout the early to mid-1990s, serving as the
entry-level powertrain for first-generation Clio models and certain
base-specification variants of the Renault 19.
1990-1997 Renault Clio I (Phase 1 and Phase 2): The primary application for the
E5F. The engine was installed in RL (base) and early RN trim levels across
European and other global markets. In certain markets, the engine was designated
as the 1.2-liter Energy engine.
1990-1996 Renault 19 (Phase 2): Used in base-model export versions of the
Renault 19, particularly in markets where the smaller 1.2-liter displacement was
favored for taxation or insurance purposes. The engine served as an entry-level
option below the larger 1.4-liter and 1.8-liter Energy engines.
1990-1996 Renault Express / Extra: Applied in certain commercial van variants of
the Renault Express (also known as the Extra in some markets), where the
1.2-liter Energy engine provided adequate power for light-duty cargo
applications.
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