Is the wobbling of the EA888 intake camshaft gear normal?
2 Answers
ea888 intake camshaft gear wobbling is normal. Here is the relevant content introduction: 1. Valves: It has a total of 16 valves, which provide greater torque and power compared to general engines. 2. Meaning of DOHC: Double Overhead Camshaft, with two overhead camshafts placed on the cylinder block. 3. Overhead camshaft: The first one is used to drive the intake valves, and the second one is used to drive the exhaust valves. 4. Basic configuration: The car engine consists of the valve train, cooling system, fuel system, lubrication system, electrical system, and engine block, with nearly a thousand parts of various sizes. Among them, the most representative is the camshaft. 5. Four-cylinder: 16 valves, if it is a four-cylinder car, each cylinder has 2 intake and 2 exhaust valves.
I've seen quite a few EA888 engines, and the camshaft gear should absolutely not wobble under normal circumstances. That thing is secured tighter than a bolt. If you feel it wobbling, nine times out of ten it's either the mounting bolts coming loose or severe wear on the gear teeth. Don't delay fixing this issue, because any misalignment in the timing system will immediately cause the engine to misfire and make strange noises. In severe cases, it can even bend the valve stems, which will hurt your wallet when it comes to repairs. I recommend checking the condition of the chain tensioner right away, and also take a look at the chain guides while you're at it—these are parts that often develop problems together. The common issue with this generation of EA888 engines lies in the timing system. If the bolts aren't torqued correctly during disassembly and reassembly at the repair shop, the problem is likely to recur.
