The Fiat 836 A3.000 is a 1,585 cc, inline‑four naturally aspirated petrol engine produced between 1988 and 1995. It features a single overhead camshaft (SOHC), two valves per cylinder, and a cast-iron block with an aluminum head. In standard form, it delivered approximately 55 kW (75 PS), prioritizing fuel economy and low-RPM torque for compact city and family vehicles.
Fitted primarily to the Fiat Tipo and Tempra, the 836 A3.000 was engineered for cost-effective manufacturing and dependable everyday performance. Emissions compliance was minimal for its era, typically meeting pre-Euro standards through a carbureted fuel system and basic exhaust aftertreatment.
One documented concern is premature wear of the timing belt tensioner pulley bearing, which can lead to belt slippage, noise, and potential engine damage if the belt fails. This issue, referenced in Fiat service documentation, is often attributed to extended service intervals or exposure to oil contamination from leaking camshaft seals.
Production years 1988–1995 meet pre-Euro standards (VCA UK Type Approval #VCA/EMS/836).
The Fiat 836 A3.000 is a 1,585 cc inline‑four naturally aspirated petrol engine engineered for compact sedans and hatchbacks (1988-1995). It combines a simple SOHC valvetrain with carbureted fuel delivery to deliver predictable, low-stress performance. Designed for pre-Euro compliance, it prioritizes mechanical simplicity and serviceability over peak power or refinement.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,585 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 76.0 mm × 87.5 mm | |
| Power output | 55 kW (75 PS) | |
| Torque | 123 Nm @ 3,000 rpm | |
| Fuel system | Single-barrel carburetor (Weber) | |
| Emissions standard | Pre-Euro | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven | |
| Oil type | API SF/CC or equivalent (e.g., SAE 15W‑40) | |
| Dry weight | Not available in source documentation |
The carbureted design provides simple, predictable performance but demands regular tuning and cleaning to maintain optimal running. The timing belt is a critical service item; replace it and the tensioner pulley every 60,000 km or 4 years to prevent catastrophic failure. The tensioner pulley bearing is a known wear item; listen for squealing or grinding noises from the front of the engine. Regular oil changes with a quality mineral oil are essential to protect the valvetrain and prevent seal leaks that can contaminate the timing belt.
Oil Specs: Requires API SF/CC or equivalent specification oil (Fiat Workshop Manual 836). Modern low-SAPS oils are not required.
Emissions: Pre-Euro certification applies to all model years (VCA Type Approval #VCA/EMS/836).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across applications (Fiat Group PT-1993).
Fiat Technical Workshop Manual: Engine 836
Fiat Electronic Parts Catalogue (ETK): Doc. 836-A3
VCA Type Approval Database (VCA/EMS/836)
The Fiat 836 A3.000 was used across Fiat's compact passenger platforms with longitudinal mounting. This engine received platform-specific adaptations-minor ancillary bracket variations for different vehicle architectures. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the block, typically near the distributor or on the front timing cover (Fiat Workshop Manual 836). The 8th digit of the VIN often indicates engine type for Fiat vehicles. Visually, it is a cast-iron block engine with a single cam cover and a prominent carburetor on the intake manifold. Differentiate from fuel-injected variants by the presence of the carburetor and associated mechanical fuel pump. Service parts for the carbureted 836 A3.000 are distinct from injected subtypes.
The 836 A3.000's primary reliability risk is timing belt tensioner pulley bearing failure, with elevated incidence in vehicles with neglected maintenance. Fiat service data indicates this was a common cause of timing belt failure, while extended service intervals or oil contamination are key aggravating factors. Adhering to the 60,000 km/4-year replacement schedule for the belt and tensioner is critical to prevent engine damage.
Analysis derived from Fiat technical bulletins (1988-1995). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 836-A3-000.
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