Yanmar 3TNV82A-B, Руководство по обслуживанию

Страница: 168 / 394

ENGINE
6-36
TNV DI Service Manual
2-Valve Cylinder Head
Disassembly of 2-Valve Cylinder
Head
Prepare a clean, flat working surface on a
workbench large enough to accommodate the
cylinder head assembly. Discard all gaskets,
O-rings and seals. Use new gaskets, O-rings and
seals on reassembly of the cylinder head.
1. Drain the coolant from the engine into a suitable
container. See Drain, Flush and Refill Cooling
System With New Coolant on page 5-36.
2. Disconnect the electrical wire from the intake air
heater (Figure 6-3, (1)).
Figure 6-3
3. Disconnect the coolant hoses from the cold
start device (Figure 6-4, (1)) on the fuel
injection pump.
Figure 6-4
4. Remove the intake manifold bolts
(Figure 6-5, (1)). Remove the intake manifold
(Figure 6-5, (2)). Discard the intake manifold
gasket (Figure 6-5, (3)).
Figure 6-5
5. Remove the exhaust manifold bolts
(Figure 6-5, (4)) and nuts (Figure 6-5, (5)).
Remove the exhaust manifold (Figure 6-5, (6))
and the exhaust manifold gasket
(Figure 6-5, (7)).
6. Remove the coolant pump. See Disassembly of
Engine Coolant Pump on page 8-10.
7. Remove the high-pressure lines and fuel
injectors from the cylinder head. See Removal
of Fuel Injectors on page 7-35.
CAUTION
Identify all parts and their location using
an appropriate method. It is important
that all parts are returned to the same
position during the reassembly process.
0000080en
(1)
0002087A
(1)
(5)
(4)
(5)
(2)
(6)
(7)
(3)
(1)
0001682
TNV_DI_SM_A4.book 36 ページ ２００７年１２月６日 木曜日 午前９時２３分