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4. Put the water-sealed moving ring rubber into the inner hole of the water pump blade; put the water-sealed moving ring into
the inner ring of the water-sealed moving ring rubber (the crossed side faces inward, and the smooth s
ide faces outward), and
apply an appropriate amount of silicone oil on the smooth surface of the moving ring;
Screw the water pump impeller assembly into the water pump shaft (apply thread glue), lock it with a 12# sleeve, and correct
the torque with a torque wrench , torque: 20±1.5 N.m.
5. Apply a small amount of engine oil to the water pump shaft and put it into the water pump casing, install it in place and install
the retaining ring for the shaft. (note: apply a proper amount of water-soluble silicone oil on the static ring and moving ring of
the water seal)
6. Take two φ8×14 hollow positioning pins and put them into the corresponding holes, put the
water pump cover sealing ring on
the water pump cover groove (if the O-ring is trimmed or worn, replace
it with a new one), and finally take 4 m6× 22
full-threaded bolts on the hexagonal flange surface (grade 8.8/zinc
)
, one of which is inserted into a 6.3×12×1.6 copper gasket,
and tightened clockwise with a torque wrench (or air batch) and an extended outer
hexagonal sleeve -8# bolt. Torque standard:
12±1.5N·m.
7. Take a m6×10 top pin bolt (zinc
), insert a 6.3×12×1.6 copper gasket, screw the bolt into the threaded hole at the
corresponding position, torque wrench (or wind batch) and extend the outer hexagonal sleeve cylinder
-8# tighten the bolts
clockwise. Torque standard: 10±1 N·m.
(note: the copper gasket is a one-time consumable, and a new gasket is required for
installation)
8. Install the φ36×1.9 acrylate
O-ring and the 18.2×2.4 EPDM O-ring into the corresponding positions.
Cylinder head cover, cylinder head
System components
6
5
4
3
2
20
15
13
14
10
11
21
Refer to the figure for disassembly and
assembly of the valve, the disassembly
structure of the intake valve and exhaust valve
is the same.
12
19
18
17
22
7
8
16
9
