How to align the timing belt of BYD F3?
2 Answers
To align the timing belt of BYD F3, follow these steps: 1. Align the camshaft timing mark with the mark on the timing belt cover; 2. Align the crankshaft sprocket timing mark with the mark on the oil pump housing. More details about the timing belt are as follows: 1. The internal components of the engine timing belt consist of 6 parts, namely the timing belt, timing belt tensioner, guide wheel, intake camshaft pulley, exhaust camshaft pulley, and crankshaft pulley; 2. Timing belt transmission produces less noise than chain transmission engines, operates more smoothly, and the maintenance cost of timing belts is much lower than that of chain transmission engines.
Last time I worked on the timing belt of my F3 by myself, and this job requires extra caution. First, rotate the crankshaft to the top dead center position of the first cylinder, aligning the mark on the crankshaft pulley. There are also small dots on the camshaft gears—align both dots to point directly upward. While aligning, prevent the camshaft from rotating on its own by gently holding it in place. After loosening the tensioner, align everything properly before gradually tightening it. Using a specialized tool to lock the tensioner bolt is the most reliable method. Once installed, manually turn the engine two full rotations to check if the marks still align correctly—even the slightest misalignment can cause valve interference. Honestly, beginners shouldn’t attempt this casually; it’s safer to spend some money and let a repair shop handle it. Damaging the engine isn’t worth the risk.
