The Toyota 2T-G is a 1,588 cc, inline‑four petrol engine produced between 1970 and 1983. It features a cast iron block, aluminium head, and a dual overhead camshaft (DOHC) design with two valves per cylinder. This high-revving engine delivered outputs around 81–88 kW (110–120 PS) and torque figures of approximately 142–147 Nm, offering spirited performance for its era.
Fitted primarily to the Celica (TA22, TA40, TA60) and Carina (TA10, TA16), the 2T-G was engineered for sporty driving character, emphasizing responsiveness and mechanical precision. Emissions compliance for its production period was managed through carburetion and ignition timing controls, meeting applicable standards for its era before widespread adoption of catalytic converters.
One documented service consideration involves potential for premature wear of the timing chain tensioner and guides, a noted issue in high-RPM applications. Toyota addressed this through revised parts and service procedures, as referenced in internal service documentation. Regular inspection and timely replacement of the timing components are recommended to prevent potential engine damage.
Toyota
Production years 1970–1983 meet applicable emissions standards for their respective markets at the time of manufacture (VCA UK Type Approval #VCA/EMS/5685).
The Toyota 2T-G is a 1,588 cc inline‑four petrol engine engineered for sporty compact models (1970-1983). It combines a durable cast iron block with DOHC valvetrain to deliver high-revving, responsive performance. Designed to meet emissions standards of its era, it prioritizes driving dynamics and mechanical engagement over fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,588 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 85.0 mm × 70.0 mm | |
| Power output | 81–88 kW (110–120 PS) | |
| Torque | 142–147 Nm | |
| Fuel system | Twin side-draft carburetors (Aisan or Mikuni-Solex) | |
| Emissions standard | Pre-catalyst era standards | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | SAE 10W-40 (Mineral or Semi-Synthetic) | |
| Dry weight | Not specified in available OEM docs |
The DOHC design offers high-revving performance but requires meticulous valve clearance adjustment. The timing chain system, while generally robust, is susceptible to tensioner and guide wear over high mileage or with aggressive driving; inspection every 80,000–100,000 km is advised. Using a quality mineral or semi-synthetic 10W-40 oil is recommended. The twin carburetor system demands regular synchronization and cleaning to maintain optimal performance and drivability.
Oil Specs: Requires SAE 10W-40 specification (Toyota Owner's Manual 1975). API SF/CC or equivalent recommended for period-correct performance.
Emissions: Certification applies to 1970-1983 models for their original markets (VCA Type Approval #VCA/EMS/5685). Pre-dates standardized Euro norms.
Power Ratings: Measured under JIS D 1001 standards. Output varies slightly by specific model application and carburetor type (Toyota Group PT-1975).
Toyota Repair Manual (RM130U)
Toyota Electronic Parts Catalogue (EPC #TJ-1241)
VCA Type Approval Database (VCA/EMS/5685)
The Toyota 2T-G was used across Toyota's TA2x/TA4x/TA6x platforms with longitudinal mounting. This engine received minor platform-specific adaptations-different intake manifolds and engine mounts depending on the chassis-and no significant facelift revisions occurred during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface of the engine block, just below the cylinder head on the exhaust manifold side (Toyota Repair Manual RM130U). The full engine code is '2T-G'. Visually, it is identifiable by its distinctive DOHC valve cover and the twin side-draft carburetors mounted on the intake manifold. Differentiate from the SOHC 2T by its dual camshafts and from the 3T-GTE by its lack of a turbocharger and different displacement.
The 2T-G's primary reliability consideration is timing chain component wear, a common trait for high-performance engines of its generation. While renowned for its durability and responsiveness, neglecting basic maintenance like oil changes, valve adjustments, and carburetor tuning can lead to accelerated wear. Its simple, mechanical design makes most repairs straightforward for a competent mechanic.
Analysis derived from Toyota technical bulletins (1970-1983) and general industry knowledge of T-series engines. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about TOYOTA 2T-G.
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Regulation (EC) No 715/2007
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