Engine Overview and Common Failures
The weight of the 6B31 engine according to the catalog is 170 kg. The engine number 6B31 is located at the junction of the block and the gearbox. For engines produced in the early years, there was a recall for replacement of the intake manifold flaps. The engine often suffers from leaks, usually due to cracks in the valve covers. The timing belt's lifespan can be significantly reduced to 90,000 km if it comes into contact with oil. The most dangerous problem occurs when the oil pump's performance drops at around 120,000 km. Initially, the hydraulic lifters make noise, and if not addressed, the engine will seize. At mileage over 200-250 thousand km, the camshafts and their bearings are usually worn out. The supports of the power unit last up to 50,000 km, and the catalytic converter starts to deteriorate after 150,000 km.