Replacement Of Valve Guide - Chery QQ Service Manual

Chery QQ Service Manual
3.3.3

Replacement of valve guide.

3.3.3.1 Heat the cylinder head with hot water to 80-100
℃.
3.3.3.2 Take out the valve guide from one side of
combustion chamber with special tool, as can be seen from
the right picture.
Notice: The removed valve guide may not be reused.
The intake valve guide and the exhaust valve guide may
not be mis-installed.
3.3.3.3 Mount the new valve guide with special tool at
the place as can be seen from the right picture.
Notice: strike the conduit slowly to the position in the
cylinder head; do not strike too far and be careful for size.
The height of the part of valve guide struck into the
cylinder head:
Type
Item
Height (mm）
3.3.3.4 Rub the inside diameter with reamer to reach the
standard clearance value.
3.3.4 Assorted surface of valve
3.3.4.1 Spread with red lead on the assorted surface of
valve. Do not rotate the valve but press lightly and check
the assortment and width.
EF
GL, ZL, RL, GS, ZS
IN 13.71±0.25
EX 12.11±0.25
Mechanical Part of SQR 472Engine
IN Use
26
EX Use