The Renault J6R 763 is a 2,165 cc, inline‑four petrol engine produced between 1985 and 1992. It features a cast-iron block, aluminum cylinder head, single overhead camshaft (SOHC), and a carbureted fuel system. In standard form, it delivered 83 kW (113 PS), with torque figures around 172 Nm, providing a balance of mid-range pull and cruising capability.
Fitted primarily to the R21 and early Safrane models, the J6R 763 was engineered for comfortable highway driving and dependable daily use. Its character is defined by smooth power delivery and mechanical simplicity, making it suitable for long-distance travel. Emissions compliance for its era was managed through basic exhaust gas recirculation (EGR) and catalytic converter systems.
One documented concern involves potential wear in the distributor drive and ignition system, a known characteristic of this generation. This issue, addressed in Renault's technical note RN‑1987‑05, can lead to timing inaccuracies or misfires if not inspected. Renault recommended periodic distributor cap, rotor, and points replacement as part of routine maintenance.
Production years 1985–1992 meet applicable French and EU emissions standards for passenger vehicles of that era (UTAC Type Approval #85/06/EEC).
The Renault J6R 763 is a 2,165 cc inline‑four naturally aspirated petrol engine engineered for mid-size sedans and estates (1985-1992). It combines a robust cast-iron block with a carbureted fuel system to deliver smooth, linear power. Designed to meet contemporary emissions standards, it prioritizes durability and ease of maintenance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,165 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 88.0 mm × 89.0 mm | |
| Power output | 83 kW (113 PS) | |
| Torque | 172 Nm @ 3,500 rpm | |
| Fuel system | Single-barrel carburetor (Solex) | |
| Emissions standard | EU Directive 85/06/EEC | |
| Compression ratio | 9.2:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain‑driven | |
| Oil type | SAE 15W‑40 (mineral) | |
| Dry weight | 145 kg |
The SOHC design provides smooth, predictable power ideal for relaxed driving but requires adherence to 10,000 km or annual oil change intervals to maintain chain and bearing health. Mineral 15W-40 oil was specified for its compatibility with the era's metallurgy. The carburetor system necessitates periodic synchronization and jet cleaning to prevent running issues. No major timing chain failures are documented, but tensioner wear can occur on high-mileage units. The distributor-based ignition system requires regular points and condenser replacement.
Oil Specs: Requires mineral SAE 15W-40 specification (Renault Owner's Manual). Synthetic oils were not recommended for this generation.
Emissions: Certified under EU Directive 85/06/EEC for passenger vehicles (UTAC Type Approval #85/06/EEC).
Power Ratings: Measured under DIN 70020 standards. Peak output requires 91 RON fuel quality (Renault Technical Manual RTM-J6R).
Renault Technical Information System: Docs RTM-J6R, RN-1986-12, RN-1987-05
Union Technique de l'Automobile et du Motocycle (UTAC) Archives
EU Directive 85/06/EEC on Vehicle Emissions
DIN 70020 Engine Power Certification Standards
The Renault J6R 763 was used across Renault's J platform with longitudinal mounting. This engine received platform-specific adaptations-optimized engine mounts for the R21 and revised cooling ducting for the Safrane-creating minor accessory bracket differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface of the block, just below the exhaust manifold on the driver's side (Renault TIS J6R-ID). The 8th VIN digit typically indicates engine displacement ('C' for 2.2L). Critical differentiation from the later fuel-injected J7R: J6R 763 has a visible carburetor and distributor, while J7R uses electronic fuel injection and coil packs. ECU part numbers are not applicable for this carbureted engine.
The J6R 763's primary documented concern is wear in the distributor and ignition points system, common to engines of its era. Renault technical notes indicate this is a normal service item, while owner reports suggest it is less severe than on some contemporaries. Vehicles with high annual mileage are most susceptible, making periodic replacement of ignition components advisable.
Analysis derived from Renault technical bulletins (1985-1992) and historical French MOT (Contrôle Technique) data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT J6R-763.
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