What is the reason for the delayed intake camshaft position in Haval H6?

[DeSabrina]

The reasons for the delayed intake camshaft position in Haval H6 are as follows: Excessive timing gear backlash: There is a slight noise when the car is idling; the noise becomes obvious at medium speed; the noise becomes chaotic or disappears at high speed; the noise reappears during rapid acceleration, and in severe cases, the timing gear cover vibrates. This indicates excessive timing gear backlash. Insufficient timing gear backlash: After major repairs or replacement of the timing gear, there is a continuous noise, which becomes louder as the speed increases, and is particularly noticeable during rapid acceleration. This indicates insufficient timing gear backlash. Uneven timing gear meshing: A rhythmic noise can be heard at idle, which increases with the rise in speed. This indicates uneven timing gear meshing.