The CADILLAC CB 22 is a 2,188 cc, inline — four petrol engine produced between 1988 and 1993. It features a SOHC valvetrain, carburetted fuel delivery, and cast — iron block construction, delivering dependable power for utility and light commercial applications. In standard tune it produced 66 kW (90 PS) with 160 Nm of torque, forming part of Daihatsu's CB engine family.
Fitted to models such as the Daihatsu Delta, Hijet, and Rugger, the CB 22 was engineered for durability in…
All production years (1988–1993) meet early Euro 1 emissions standards (VCA UK Type Approval #VCA/EMS/9228).
The CADILLAC CB 22 is a 2,188 cc inline-four petrol engine engineered for utility and off-road models (1988–1993). It combines robust SOHC architecture with carburetted fuel delivery to deliver reliable low-RPM torque. Designed to meet early European emissions standards, it represents a durable iteration of Daihatsu's commercial engine platform.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,188 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, SOHC, 8-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 85.0 mm × 96.0 mm | |
Power output | 66 kW (90 PS) @ 4,800 rpm | |
Torque | 160 Nm @ 2,800 rpm | |
Fuel system | Single-barrel carburettor | |
Emissions standard | Euro 1 | |
Compression ratio | 8.8:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Gear-driven (non-interference design) | |
Oil type | SAE 10W-30 (API SG) | |
Dry weight | 178 kg |
The CADILLAC CB 22 was used across Daihatsu's DXx and Rx platforms with longitudinal mounting and shared under partnership with Holden for Australasian market applications. This engine received platform-specific adaptations-shortened intake manifolds in the Delta and revised cooling routing in the Hijet-and from 1991 the facelifted Rugger models adopted updated ECU calibration, creating minor software differences. All adaptations are documented in OEM technical bulletins.
The CB 22's primary reliability risk is carburettor icing and mixture imbalance, with elevated incidence in cold-weather driving with frequent short trips. Internal Daihatsu quality reports from 1990 indicated a significant share of pre-1991 engines required carburettor adjustment before 80,000 km, while NHTSA field reports show drivability faults contributing to emissions-related failures. Extended service intervals and low coolant quality increase thermal stress, making cooling system maintenance and component upgrades critical.
Analysis derived from Daihatsu technical bulletins (1988–1993) and NHTSA field reports (1990–1992). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The CB 22 offers dependable performance and good durability, but early models (1988–1990) had reliability concerns, particularly carburettor icing. Later revisions (post-1991) improved component durability, so well-maintained examples can exceed 150,000 km. Regular servicing with OEM-specified oil (10W-30) and timely carburettor maintenance greatly enhance longevity.
The most frequent issues are carburettor icing, intake manifold gasket leaks, and water pump coolant leaks. These are well-documented in Daihatsu service bulletins. Carburettor issues are linked to cold-weather operation and intake design, while gasket problems stem from material aging under heat. Coolant leaks are design-related and affect pre-1991 units most.
This 2.2L petrol engine was used in Daihatsu's utility and off-road models under the CADILLAC engineering designation. It powers the Delta, Hijet, and Rugger variants. It is part of the CB engine family and is designed for longitudinal applications. All applications meet early Euro 1 emissions standards.
Limited tuning potential exists due to its carburetted design and SOHC valvetrain. ECU remaps are not feasible due to analog control systems. Supporting modifications like intake/exhaust upgrades offer minimal returns. The engine is built for durability rather than performance, and stock internals are not designed for high boost. Most owners prioritize preservation over modifications.
Moderate for a utility engine. In a Delta from 1989, combined consumption is ~9.8 L/100km (28.8 mpg UK). City driving may see 11–13 L/100km, while highway runs can achieve ~7.5 L/100km. Real-world figures depend heavily on driving style, as the engine rewards smooth inputs. Expect 27–32 mpg (UK) on mixed routes for a well-maintained CB 22.
No. The CB 22 uses a non-interference gear-driven design. This means if the timing gear fails, the pistons will not contact the valves, preventing catastrophic internal damage. However, any timing fault still requires immediate attention to avoid engine stalling and secondary issues. The gear drive is durable but should be inspected periodically.
Specifies SAE 10W-30 API SG oil meeting Daihatsu specification. This formulation protects the hydraulic lifters and camshaft. Change intervals should not exceed 15,000 km or 6 months. Using incorrect oil can accelerate lifter wear and reduce engine lifespan. Always use high-quality petrol to support engine longevity.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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