Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
39
b. Install the tappet anti-drop tool.
3. Install the piston connecting rod
assembly.
a. Spray one film of oil onto the cylinder bore.
b. Spray oil onto the piston skirt, install the piston into
the piston taper sleeve, insert into the cylinder bore,
and use nylon bar and guide jig to install the piston.
Notice: (The connecting rod and bolts shall not
come into contact with the cylinder bore and the
large end bore of connecting rod shall be
orthometric with the crankshaft journal.)
c. After installing the large end cap of the connecting
rod, tighten the large end nut of connecting rod to
20N· m and 85N· m by two times.
d. Use a feeler gauge to check the side play of large end
of connecting rod. The side play range for large end
of connecting rod: 0.175-0.29mm.
e. After the installation of pistons for 1
st
and 4
th
cylinders, rotate the crankshaft for 180º and install
the pistons for 2
nd
and 3
rd
cylinders.
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