The Renault C2J 717 is a 1,397 cc, inline‑four petrol engine produced between 1980 and 1985. It features a single overhead camshaft (SOHC) and two valves per cylinder, delivering modest power outputs suitable for compact economy cars. Its simple, robust design prioritized ease of maintenance and fuel economy, with outputs around 75 PS depending on the specific carburettor setup.
Fitted primarily to the Renault 5 (Supercinq) and Renault 9/11 models, the C2J 717 was engin…
Production years 1980–1985 predate standardized Euro emissions regulations; compliance was based on national standards of the time (French DRIRE Type Approval).
The Renault C2J 717 is a 1,397 cc inline‑four petrol engine engineered for supermini and compact sedan applications (1980-1985). It combines a simple SOHC valvetrain with carburettor fuel delivery to deliver reliable, economical performance. Designed for pre-Euro regulatory environments, it prioritizes serviceability and low-cost ownership.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,397 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 75.2 mm × 78.0 mm | |
Power output | 75 PS (55 kW) | |
Torque | 105 Nm @ 3,500 rpm | |
Fuel system | Single-barrel carburettor (Solex) | |
Emissions standard | Pre-Euro (National Standards) | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven camshaft | |
Oil type | Mineral 15W-40 or 10W-40 | |
Dry weight | 98 kg |
The Renault C2J 717 was used across Renault's R5 and R9/R11 platforms with transverse mounting. This engine received minor carburettor updates throughout its production run. All adaptations are documented in OEM technical bulletins.
The C2J 717's primary reliability risk is timing chain wear and tensioner failure, with elevated incidence in high-mileage or poorly maintained examples. Renault service data indicates that neglecting oil changes significantly accelerates chain guide wear. The carburettor's mechanical nature also makes it susceptible to gumming and wear, leading to drivability issues if not maintained. While generally robust, vigilance on the timing chain is advised.
Analysis derived from Renault technical bulletins (1980-1985) and French MOT (Contrôle Technique) failure statistics (1985-1995). Repair procedures should follow manufacturer guidelines.
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Yes, the C2J 717 is generally very reliable due to its simple, robust mechanical design. Its main weakness is the timing chain, which should be inspected regularly for wear or noise. With basic maintenance, particularly timely oil changes, these engines can easily surpass 200,000 km without major issues.
The most common issue is timing chain rattle due to worn tensioners or guides, often accelerated by poor oil maintenance. Other frequent problems include carburettor gumming or wear, ignition system faults (distributor, HT leads), and minor oil leaks from the rocker or timing cover gaskets.
The C2J 717 was primarily used in the Renault 5 (Super 5) from 1980 to 1985. It was also fitted to the Renault 9 sedan (1982-1985) and the Renault 11 hatchback (1983-1985), typically in their mid-range GTL and TSE trim levels.
Minor tuning is possible. Upgrades include fitting a performance carburettor (e.g., Weber 32/36 DGV), a free-flow exhaust, and a performance air filter. These can yield modest gains of 5-10 PS. Significant power increases are difficult without forced induction, which the bottom end wasn't designed for.
Excellent for its era. In a Renault 5 Super 5, expect around 6.8 L/100km (42 mpg UK) on the highway and 8.8 L/100km (32 mpg UK) in the city. A Renault 9 or 11 with this engine should return similar figures, making it very economical for daily driving.
Yes. The C2J 717 is an interference engine. If the timing chain jumps several teeth or breaks, the pistons will collide with the open valves, causing severe and expensive internal damage. Regular inspection for chain slack is crucial.
Renault recommends a good quality mineral 15W-40 or 10W-40 engine oil for the C2J 717. While modern synthetics can be used, the older seals in these engines were designed for mineral oils, and synthetics can sometimes cause leaks in high-mileage units.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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