Chery A21 2005, Service Manual, Page: 412 / 475

CHERY A21 SERVICE MANUAL MECHANISM OF 2.0NALC ENGINE
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C: Revise it if the planeness exceeds, and
replace when it exceeds the limit value.
The permitted maximum abrading thickness
between cylinder block and cylinder head is:
2.2.3 Installation
The installing steps are reverse to those for
removal.
Note:
1) Dismantle valve springs into groups.
The 1st and 4th cylinders are in one
group and the 2nd and 3rd ones are in
the other group. Then put the piston to
the upper point of 1st and 4th cylinders
in order to dismantle the valve spring of
1st and 4th cylinders, replace their valve
oil
seal and mount the spring
immediately. And put the piston to the
upper point of 2nd and 3rd cylinders in
order to replace the other valve oil seal.
Those steps prevent from that the valve
falls into cylinder and the unanticipated
trouble occurs.
2) Wipe the engine transmission oil on the
opening of oil seal when mounting the
valve oil seal.
3) Fasten the cylinder bolt as the following
process.
A: Smear some oil on the top and root of
bolt.
B: Fasten to 40
±
5NM in sequence.
C: Fasten 90
±
5 degree clockwise.
D: Fasten 90
±
5 degree clockwise.
2.3 Replace thermostat
2.3.1 Structural diagram
8 4 1 5 9
7 3 2 6 10
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