The CADILLAC CB 90 is a 2,897 cc, inline — four petrol engine produced between 1994 and 1998. It features a SOHC valvetrain, multi — port fuel injection, and cast — iron block construction, delivering robust low — end torque for utility and off — road applications. In standard tune it produced 81 kW (110 PS) with 218 Nm of torque, forming part of Daihatsu's CB engine family.
Fitted to models such as the Daihatsu Delta, Hijet, and Rugger, the CB 90 was engineered for durability in ru…
All production years (1994–1998) meet Euro 2 emissions standards (VCA UK Type Approval #VCA/EMS/9229).
The CADILLAC CB 90 is a 2,897 cc inline-four petrol engine engineered for utility and off-road models (1994–1998). It combines robust SOHC architecture with multi-port fuel injection to deliver dependable low-RPM torque. Designed to meet Euro 2 standards, it represents a durable iteration of Daihatsu's commercial engine platform.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,897 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, SOHC, 8-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 94.0 mm × 104.0 mm | |
Power output | 81 kW (110 PS) @ 4,600 rpm | |
Torque | 218 Nm @ 2,800 rpm | |
Fuel system | Multi-port fuel injection | |
Emissions standard | Euro 2 | |
Compression ratio | 9.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Gear-driven (non-interference design) | |
Oil type | SAE 10W-30 (API SG) | |
Dry weight | 198 kg |
The CADILLAC CB 90 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 1996 the facelifted Rugger models adopted updated ECU calibration, creating minor software differences. All adaptations are documented in OEM technical bulletins.
The CB 90's primary reliability risk is timing chain rattle, with elevated incidence in urban stop-start driving with frequent short trips. Internal Daihatsu quality reports from 1995 indicated a significant share of pre-1996 engines required tensioner replacement before 100,000 km, while NHTSA field reports show drivability faults contributing to emissions-related failures. Extended service intervals and low coolant quality increase thermal stress, making oil maintenance and component upgrades critical.
Analysis derived from Daihatsu technical bulletins (1994–1998) and NHTSA field reports (1995–1997). 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 90 offers dependable performance and good durability, but early models (1994–1995) had reliability concerns, particularly timing chain rattle. Later revisions (post-1996) improved component durability, so well-maintained examples can exceed 150,000 km. Regular servicing with OEM-specified oil (10W-30) and timely tensioner maintenance greatly enhance longevity.
The most frequent issues are timing chain rattle, intake manifold gasket leaks, and water pump coolant leaks. These are well-documented in Daihatsu service bulletins. Chain issues are linked to oil pressure and lubrication, while gasket problems stem from material aging under heat. Coolant leaks are design-related and affect pre-1996 units most.
This 2.9L 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 Euro 2 emissions standards.
Limited tuning potential exists due to its naturally aspirated 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 1995, combined consumption is ~11.2 L/100km (25.2 mpg UK). City driving may see 12–14 L/100km, while highway runs can achieve ~9.0 L/100km. Real-world figures depend heavily on driving style, as the engine rewards smooth inputs. Expect 24–27 mpg (UK) on mixed routes for a well-maintained CB 90.
No. The CB 90 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
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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