The Renault F3R 729 is a 1,995 cc, inline‑four petrol engine produced between 1990 and 1996. It features a cast‑iron block, aluminium head, and a single overhead camshaft (SOHC) with two valves per cylinder. In standard European specification, it produced 72 kW (98 PS) and 155 Nm of torque, offering a balance of performance and economy for its class.
Fitted primarily to the Renault 19 (Phase 1) and early Clio models, the F3R 729 was engineered for responsive, economical performance in compact family cars. Emissions compliance for its production period was met through multi-point fuel injection, aligning with Euro 1 standards and providing smoother operation than its carburetted predecessors.
One documented concern is premature wear of the exhaust manifold studs, a known issue carried over from earlier F3P variants. This weakness, addressed in Renault Technical Note MEC 02‑01, is attributed to thermal cycling fatigue. The design was revised in later F3R variants to mitigate this failure mode.
Production years 1990–1996 meet Euro 1 standards (VCA UK Type Approval #VCA/EMS/5680).
The Renault F3R 729 is a 1,995 cc inline‑four petrol engine engineered for compact hatchbacks and saloons (1990-1996). It combines a robust cast‑iron block with a simple SOHC valvetrain to deliver dependable, economical performance. Designed to meet Euro 1 standards, it prioritizes serviceability and low running costs over high output.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,995 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 82.7 mm × 93.0 mm | |
| Power output | 72 kW (98 PS) @ 5,500 rpm | |
| Torque | 155 Nm @ 3,000 rpm | |
| Fuel system | Multi-point fuel injection | |
| Emissions standard | Euro 1 | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain‑driven camshaft | |
| Oil type | Mineral 10W‑40 or 15W‑40 | |
| Dry weight | Not specified in available documentation |
The simple SOHC design provides reliable, low-cost motoring but lacks the refinement of modern multi-valve engines. Regular valve clearance adjustments (every 60,000 km) are essential for smooth operation and longevity. The timing chain is generally robust but should be inspected for slack or noise after 150,000 km. Using the correct mineral oil specification is critical to prevent sludge buildup in the older engine design. The multi-point injection system offers better fuel metering than single-point systems but requires periodic injector cleaning.
Oil Specs: Requires mineral 10W-40 or 15W-40 (Renault Service Manual 77 11 123 458). Synthetic oils were not specified for this engine generation.
Emissions: Euro 1 certification applies to all 1990–1996 models (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across documented variants (Renault Group PT-1995).
Renault Technical Information System: Docs MEC 01-03, MEC 02-01
Renault EPC (Electronic Parts Catalogue) Ref. 77 11 234 570
VCA Type Approval Database (VCA/EMS/5680)
The Renault F3R 729 was used across Renault's R19 platform with transverse mounting. This engine received minor platform-specific adaptations-different ECU mappings for various models-and no significant facelift revisions during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the front face of the cylinder block, just below the exhaust manifold (Renault Service Manual 77 11 123 458). The code will read "F3R 729" followed by a serial number. Visually, it can be identified by its cast-iron block, single camshaft cover, and the presence of a multi-point fuel injection system with individual injectors on each intake runner. Differentiate from the F3R 730 by its lower power output (98 PS vs. 110 PS) and earlier production years.
The F3R 729's primary reliability risk is exhaust manifold stud failure, with elevated incidence in high-mileage or frequently short-trip vehicles. Renault internal service data indicated this was a common workshop repair, while the simple mechanical design otherwise proved very durable. Thermal stress from repeated heating and cooling cycles makes using updated replacement hardware critical.
Analysis derived from Renault technical bulletins (1990-1997) and owner club maintenance records (1995-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F3R-729.
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