The difference between Chai Weiyu, Chai Xichai
(1), Wei Chai: Steyr series old products (280-420), Deutz T226B( 180-220), mainly heavy-duty, mainly equipped with heavy trucks and construction machinery.
(2) Yuchai: There are 13 series, single cylinder machines, double cylinder machines and even three cylinder machines. There are many products, mainly light and medium-sized, and heavy-duty ones reach 390 horsepower.
(3) Xichai: Series 7, with displacement of 2. 16L to 13L, and 46 HP to 500 HP. The main products are Jiefang Aowei, namely CA6DL, 7.7 liters and 8.6 liters, which mainly match Jiefang J5 heavy trucks, 1 1 liter and 13 liters mainly match J6 heavy trucks. The machine performance is absolutely top-notch in China.
2. The power problem of the same tonnage car (don't talk about Yuchai, because it is not in the comparison range)
(1) In fact, power and fuel consumption are inversely proportional. If you want power, you must consume more fuel, but there is also a comparative interval.
(2) Generally speaking,? Wei Chai 336 vs Xichai 350, Wei Chai 375 vs Xichai 390, which is the correct strategy of the manufacturer? In this way, Xichai's machines are a little more maneuverable than Wei Chai's, but they are basically the same. Don't worry about this.
Extended data
maintain
1, depending on the season, maintenance is different. Before starting the vehicle, the diesel engine of heavy truck must be filled with enough coolant to avoid water shortage. Don't add cold water when the body temperature is too high to avoid cracking of the cylinder.
2. Pay attention to drainage (or add antifreeze) when parking outdoors at low temperature in winter to prevent the cylinder from freezing and cracking; Vehicles must run at the specified temperature, and cooling water is essential to prevent the engine from being too cold or too hot. Engine maintenance should strictly follow the operating procedures to avoid improper man-made damage.
3. When the flatness error of the cylinder plane exceeds the limit, the cylinder gasket will not be pressed tightly, resulting in water leakage, air leakage, oil leakage and ablation.
4. If the flatness error of the cylindrical surface exceeds the limit, it must be repaired. If it is a local bump, it can be polished with an oilstone or a fine file; A slightly larger depression can be repaired by grinding or milling, but the machining allowance should not be too large, otherwise the compression ratio will increase and it will suddenly explode.
Reference source: Baidu Encyclopedia-Diesel Engine