Yanmar 3TNV88F, Руководство по обслуживанию

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ENGINE
3TNV88F Service Manual 6-33
Crankshaft and Camshaft Components
1 – Cylinder block
2 – Camshaft bushing
3 – Dowel (2 used)
4 – O-ring
5 – Front plate
6 – Gear case cover
7 – Front crankshaft seal
8 – Tappets
9 – Camshaft
10 – Camshaft gear key
11 – Camshaft end plate
12 – Camshaft gear
13 – Idler gear shaft
14 – Idler gear bushing
15 – Idler gear
16 – Oil pickup gasket
17 – Oil pickup
18 – Crankshaft
19 – Crankshaft gear key
20 – Crankshaft gear
21 – Crankshaft pulley
22 – Main bearing inserts
23 – Main bearing cap
24 – Oil pan spacer
25 – Oil pan
26 – Thrust bearings
27 – Ring gear
28 – Flywheel
29 – Connecting rod cap
30 – Connecting rod bearing inserts
31 – Connecting rod
32 – Wrist pin bushing
33 – Circlip
34 – Wrist pin
35 – Piston
36 – Oil ring
37 – Second compression ring
38 – Top compression ring
39 – Crankshaft rear seal housing
40 – Crankshaft rear seal
Disassembly of Engine
Prepare a clean, flat working surface on a
workbench large enough to accommodate the
engine components. Discard all used gaskets,
O-rings and seals. Use new gaskets, O-rings and
seals on reassembly of engine.
NOTICE
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.
If the engine will be completely disassembled, the
following preliminary steps should be performed:
1. Disconnect the battery cables at the battery.
Always disconnect the negative (-) cable first.
2. Remove the throttle cable, electrical
connections, intake and exhaust system
connections, and fuel supply lines from the
engine.
3. Remove the alternator. See Removal of
Alternator on page 11-10.
4. Drain the engine coolant from the radiator and
cylinder block. See Drain, flush and refill cooling
system with new coolant on page 5-20.
Remove the cooling system components from
the engine.
5. Remove the engine from the machine. Mount
the engine to a suitable engine repair stand
having adequate weight capacity.
NOTICE
Be sure to secure the engine solidly to prevent
injury or damage to parts due to the engine falling
during work on the engine.
6. Clean the engine by washing with solvent, air or
steam cleaning. Carefully operate so as to
prevent any foreign matter or fluids from
entering the engine or any fuel system or
electrical components remaining on the engine.
7. Drain the engine oil into a suitable container.
Remove the oil filter.
8. Remove the cylinder head. See Cylinder Head
on page 6-15 .
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