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Yanmar 4JH4E - Page 188

Yanmar 4JH4E
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4. Disassembly and reassembly
168
Note:
In case of 4-valve head the fuel inlet of the
fuel nozzle must align the pipe seal, which is
installed to the rocker arm cover. Replace the
used pipe seal with new one.
2) Tighten the fuel nozzle retainer bolt to the
specified torque. (Do not apply lube oil to the
bolt.)
(24) Mounting the fresh water pump
1) Thoroughly coat both sides of the gasket with
adhesive.
2) Replace the O-ring for the connecting part of
the pump, which is inserted in the cylinder
block, and tighten the fresh water pump to the
specified torque.
(25) Mounting the intake manifold
Thoroughly clean the inside of the intake
manifold, and mount the gasket packing and
intake manifold.
(26) Mounting the fuel injection pipe and fuel
return pipe
1) Mount the fuel injection pipe and then
assemble the fuel injection pipe retainer to
prevent the pipe vibration.
Note:
Lightly tighten the pipe joint nuts on both ends
of the fuel injection pipe. Completely tighten
after adjusting the injection timing.
Tightening torque Nm (kgf•m)
Fuel nozzle retainer bolt 24.4-28.4 (2.49-2.90)
Tightening torque Nm (kgf•m)
Fresh water pump 6.9-11 (0.7-1.1)
Standard tightening torque Nm (kgf•m)
Fuel injection pipe joint nut 29.4-34.4 (3.00-3.51)
Pipe seal
Fuel injection valve retainer
Fuel injection nozzle
Retainer flange bolt
Cylinder head
Retainer pedestal
014211-00E
4-valve head
Cylinder head
Gasket
Fresh water
pump
O-ring
010385-00E

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