Opel Z30DT engine
Content
A powerful, diesel V-shaped six can become the pride of any auto industry, so GM simply had to make a similar power unit that could withstand the criticism of experts from around the world. Although it was not without problems during the implementation of these tasks, in general, this manufacturer achieved its goals. The Z30DT unit replaced the analogue previously produced by the Japanese company Isyzu.
In the GM classification, it was marked Y30DT and had a lot of significant flaws. The main one was considered overheating, which was accompanied by the complete destruction of the piston system. In addition, Euro-3 environmental standards were clearly insufficient for this time, and in 2006 Opel introduced its own development of the Z30DT, which was designed to eliminate all the shortcomings of its predecessors.
Characteristics and parameters of Opel Z30DT engines
| Z30DT | |
|---|---|
| Volume, cc | 2958 |
| Power, hp | 184 |
| Torque, N*m (kg*m) at rpm | 400 (41) to 2700 |
| Type of fuel | Diesel fuel |
| Consumption, l / 100 km | 7.7 |
| engine's type | V-shaped, 6-cylinder |
| Additional Information | turbocharged direct injection |
| Cylinder diameter, mm | 87.5 |
| Number of valves per cylinder | 4 |
| Power, hp (kW) at rpm | 184 (135) to 4000 |
| Compression ratio | 17.5 – 18.5 |
| The piston stroke, mm | 82 |
| CO2 emission in g / km | 189 – 208 |
Common faults Z30DT
Although the work of the designers from Keizerslautern is commendable and most of the design flaws of the predecessor have been eliminated, there are still some problems in the operation of this diesel six.
The most common malfunctions that can be encountered while actively using this motor are:
- synchronization error. The problem arises as a result of poor-quality reading of information about the speed of the rays of the crown and camshaft petals. The result is error P0346 and the inability to start the car. You can partially solve the problem by disconnecting the sensor, but the malfunction indicator will continue to be displayed on the panel;
- malfunction of the mass fuel flow sensor DMRV. The result is a decrease in traction, the engine troit and diesel;
- The weak point of the turbine is the geometry vacuum actuator. Repair is carried out in a specialized car service or by replacing a worn part;
- like all diesel engines, the EGR valve remains a problem here. As a result of its clogging with soot, it jams, and the further operation of the car becomes unstable;
- insufficient engine lubrication. The oil level of these motors must be constantly maintained at the MAX mark. Due to the high location of the oil intake, a decrease in fuel and lubricants leads to poor lubricity and increased load on the piston;
- The Denso fuel system is very sensitive to fuel quality. The failure of this mechanism leads to the need to search for a specialized car service and adjust the fuel system at the stand.
Applicability of the Z30DT engine
The main car on which these internal combustion engines were installed was the third generation Opel Vectra C. Somewhat later, the same unit was installed on the new Signum model. These are the most powerful and productive diesel engines in the Opel line, so those who want to increase the number of horses will have to resort to tuning.
The simplest solution is chip tuning, which can add 20-30 hp. In addition, the installation of bored manifolds, a lightweight flywheel and a modified turbine with an intercooler can be an excellent solution. All this can add up to 100 hp to your car. and provide excellent acceleration dynamics.
For those who decide to replace the power unit with an analogue, you must carefully consider checking the license plates of the unit. It must be clear and even and fully match the one specified in the accompanying documentation. In motors of the Z30DT series, the plate with the number is located on the left in the back behind the dipstick, under the oil filter.
