Chery QQ Service Manual 465 Engine Mechanical System
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Chery Automobile Co., Ltd
III Repair of valve seat
:
If the valve seat cannot touch the valve
equably or touch width is not in standard
scale, the valve and valve seat must be
repaired by grinding, cutting and polishing.
1 Exhaust valve seat: Use the taper rymer
to cut 3 times as shown in figure. First
cut at a angle of 15°,Then 75°and then
45°to create ideal touch width
2 Angle of exhaust valve seat
3 Intake valve seat: cutting sequence is the
same as the sequence of exhaust valve
seat, but cutting angle is different, shown
as the following illustration:
IV Procedures of installation
1 Install valve.
2 Install valve stem seal.
3 Install spring.
4 Install valve spring damper.
5 Install valve lock.
6 Install cylinder head as the following
illustration.