Engine Overview and Common Failures
The weight of the 4B11 engine according to the catalog is 124 kg. The engine number for the 4B11 is located at the junction of the block and oil pan. Oil consumption: This engine is considered very reliable, but at high mileage, it tends to consume oil either due to worn valve seats and guides or piston ring sticking. Elliptical cylinder bores can also be found, as in any aluminum block with an open deck. Timing chain stretch: The second most popular problem is timing chain stretch at 150,000 km mileage. Replacing the timing chain kit is relatively inexpensive, but only if you don't encounter severe wear on the camshaft phasers, the cost of which will not please you. Other drawbacks: It is also common to find complaints about noisy engine operation, regular oil leaks, burnt intake pipe rings, and the appearance of cracks in the exhaust manifold base. And don't forget about adjusting the valve clearances, there are no hydraulic tappets here.