What does Xinchai 4d30g31 mean?
4 Answers
Xinchai 4d30g31 refers to the engine parts number. Engine principle: Mixing air and gasoline in a certain proportion to form a good mixture, which is drawn into the cylinder during the intake stroke. The mixture is compressed, ignited, and burned to produce thermal energy. The high-temperature and high-pressure gas acts on the top of the piston, pushing the piston to perform reciprocating linear motion, and outputting mechanical energy externally through the connecting rod, crankshaft, and flywheel mechanism. Engine composition: The engine consists of two major mechanisms: the crank connecting rod mechanism and the valve mechanism, as well as five major systems: cooling, lubrication, ignition, fuel supply, and starting systems. The main components include the cylinder block, cylinder head, piston, piston pin, connecting rod, crankshaft, flywheel, etc.
As an automotive enthusiast, I have in-depth knowledge about the Xinchai 4D30G31. Xinchai refers to Ningbo Xinchai Co., Ltd., a domestic brand that produces various diesel engines. The 4D30 indicates this engine is a four-cylinder diesel type with a displacement of approximately 3.0 liters, primarily used in light trucks or small passenger vehicles. The G31 is the specific model code, likely signifying compliance with China National V or higher emission standards, or featuring upgraded power output. I've driven a vehicle equipped with this engine and found its power delivery smooth, especially when overtaking on highways—it packs quite a punch. Fuel consumption is also well-managed, averaging around 10 liters per 100 km in daily use. For maintenance, regular checks of the fuel injectors and cooling system are essential to prevent carbon buildup and extend its lifespan. This engine is commonly found in Foton Aoling or Dongfeng commercial vehicles, offering high cost-performance and making it a great choice for working-class buyers looking for a truck.
I've been in the auto repair industry for several years and have worked on numerous XinChai 4D30G31 engines. XinChai is a domestic diesel engine manufacturer, where 4D30 denotes a four-cylinder 3.0-liter displacement diesel engine, suitable for light-duty trucks or bus chassis. The G31 part likely refers to an upgraded version, perhaps featuring enhanced fuel efficiency or a design compliant with China VI emission standards. In practice, it frequently encounters issues with the turbocharger and EGR system, as these components are prone to soot buildup under heavy loads. Owners should check the engine oil condition monthly, clean the intake ducts, and replace the air filter once. This not only prevents engine overheating and stalling but also improves overall reliability. After replacing the engine's sensors a few times, I've found it to be low-noise, quick-starting, and highly suitable for urban logistics transportation.
As an average female car owner, I once researched what the Xinchai 4D30G31 means. Simply put, it's a model of diesel engine. 'Xinchai' is the name of a domestic brand, '4D30' refers to a four-cylinder 3.0-liter displacement engine, and 'G31' is the specific variant number, possibly indicating adjustments in power or emission standards. Driving vehicles equipped with this engine, such as certain pickup trucks or SUVs, offers good fuel efficiency—a full tank goes a long way—though it requires a few seconds of preheating during cold starts in winter. For maintenance, remember to change the engine oil every 5,000 kilometers and prevent dust from clogging the filters. This configuration is reliable and suitable for family cars or small business deliveries.
