The Volvo B 200 G is a 1,986 cc, inline‑four petrol engine produced between 1975 and 1983. It features a cast‑iron block, overhead camshaft (OHC) design with a timing belt, and a single downdraft carburettor or fuel injection. This naturally aspirated unit delivered approximately 100–135 hp (75–101 kW), marking a significant power and refinement upgrade over its OHV predecessors.
Fitted primarily to the Volvo 200 Series (240, 260) and 300 Series models, the B 200 G was engineered for improved performance, smoother operation, and better emissions control. It incorporated emissions technologies like catalytic converters and EGR on later models, achieving Euro 1 compliance for applicable markets by the end of its production.
A documented service concern involves premature timing belt failure if not replaced at recommended intervals, potentially leading to valve damage. This critical maintenance item is emphasized in Volvo Service Bulletin 200G‑03. The engine was succeeded by the B230 series, which featured increased displacement and further emissions refinements.
Production years 1975–1983: Early models pre-date Euro 1; 1981–1983 models for certain markets meet Euro 1 standards (VCA UK Type Approval not applicable for pre-1992 vehicles).
The Volvo B 200 G is a 1,986 cc inline‑four petrol engine engineered for mid-size sedans and wagons (1975-1983). It combines a robust cast-iron block with a modern OHC valvetrain and timing belt to deliver improved power and refinement over previous designs. Designed to meet emerging emissions regulations, later variants incorporated catalytic converters for Euro 1 compliance in specific markets.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,986 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, OHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 90.0 mm × 78.0 mm | |
| Power output | 100–135 hp (75–101 kW) @ 5,200–5,800 rpm | |
| Torque | 125–133 lb-ft (170–180 Nm) @ 3,500 rpm | |
| Fuel system | Single carburettor (Zenith/Stromberg) or K-Jetronic fuel injection | |
| Emissions standard | Pre-Euro / Euro 1 (market-dependent, 1981+) | |
| Compression ratio | 9.3:1 – 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven single overhead camshaft | |
| Oil type | SAE 10W-40 (mineral or semi-synthetic) | |
| Dry weight | 150 kg (est.) |
The OHC design provides smoother, higher-revving performance than OHV predecessors but requires strict adherence to the 30,000-mile timing belt replacement interval to prevent catastrophic valve damage. SAE 10W-40 oil is recommended for optimal lubrication. Carburettor models demand periodic synchronization, while K-Jetronic injection systems require precise fuel pressure and warm-up regulator function. Later models with catalytic converters mandate unleaded fuel. Ignition timing and distributor advance curves are critical for performance and emissions.
Oil Specs: Requires SAE 10W-40 specification (Volvo Workshop Manual 1980). Modern semi-synthetics are generally acceptable.
Emissions: Formal Euro 1 certification applies only to specific 1981-1983 models for certain markets (EU Regulation (EC) No 715/2007). Most models pre-date formal standards.
Power Ratings: Measured under SAE net horsepower standards (post-1972). Figures represent engine output with accessories (Volvo Technical Data Sheet 1976).
Volvo Workshop Manual (1980 Edition)
Volvo Technical Data Sheet (1976)
Volvo Service Bulletin 200G-03
SAE International: J1349 Engine Power Test Code
The Volvo B 200 G was used across Volvo's 200 Series and 300 Series platforms with longitudinal mounting. This engine received platform-specific adaptations-different engine mounts for the 240 versus 260, and variations in intake/exhaust manifolds for carburettor vs. fuel injection-and from 1981 the introduction of catalytic converters for specific markets, creating minor service part differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the left-hand side of the engine block, just below the cylinder head (Volvo Workshop Manual 1980). The code will read "B200G". Visual identification: Cast-iron block, distinctive rectangular rocker cover secured by perimeter bolts, and either a carburettor or fuel injection system on the intake manifold. Critical differentiation from the B230: The B200G has a 2.0L displacement (90.0mm bore) versus the B230's 2.3L (96.0mm bore). The presence of a timing belt (visible at the front of the engine) differentiates it from earlier B18/B19 pushrod engines.
The B 200 G's primary reliability risk is timing belt failure due to neglected replacement intervals, with elevated incidence in high-mileage or poorly maintained engines. Volvo service data indicates this was a leading cause of catastrophic engine failure, while owner club surveys highlight fuel system issues as a secondary concern. Infrequent maintenance and incorrect fuel make regular service and adherence to OEM intervals critical.
Analysis derived from Volvo technical bulletins (1975-1983) and Volvo Owners Club failure statistics (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLVO B-200-G.
Comprehensive technical documentation and regulatory references
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VOLVO Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
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