Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
25
p. Remove the cylinder head bolts by several times as per
the specified sequence (front circle drawing method).
q. The failure to disassemble by several times as per
specified sequence will damage the cylinder head and
impair the deflection of lower surface of cylinder
head*.
r. Remove the damping pulley.
Remove the fixing bolts of water pump, remove the
water pump, and check the water pump blades for
presence of cracking and corrosion and check the
blade shaft for presence of wear.
s. Disassemble the fixing bolts of timing gear chamber
cover and remove the timing gear chamber cover and
cover gasket.
t. Remove the engine left bracket.
u. Loosen the bypass rubber hose clamp, loosen the
fixing bolts of water inlet pipe weldment, and remove
the water inlet pipe weldment.
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