SsangYong Rexton. Service manual — part 384
DIESEL ENGINE MECHANICAL 1B3-111
SSANGYONG Y200
YAD1BH80
YAD1BH90
YAD1BHA0
YAD1BHB0
Example) Measured value D
= 37.100 mm
Measured value D2 = 37.010 mm
Overlap value ‘U’
= 0.090 mm
If overlap value ‘U’ is out of standard,
machine the basic bore for the valve
seat ring.
8. Turn over the cylinder head.
9. Remove the tensioning head (4) and valve seat
ring (2) with drift (14 mm) and removal tool.
10. Clean the basic bore of valve seat ring.
11. Measure the basic bore diameter (D2) and outer
diameter (D) of the new valve seat ring (standard
size).
12. Calculate the overlap value ‘U’ (D - D2).
- Measure machined basic bore and outer
diameter ‘D’ of valve seat ring (repair size).
- Measure the overlap ‘U’
13. Clamp the cylinder head with clamping device.
14. Machining basic bore for valve seat ring (repair
size).
Notice: Maintain minimum value of ‘B’.
- Machine the basic bore.
Limit
Example) Measured value D
= 37.600 mm
Measured value D2 = 37.480 mm
Overlap U
= 0.120 mm
The basic diameter D2 must be
machined by 0.020 mm in order to get
the required overlap value.
Overlap Valve ‘U’
0.068 - 0.100 mm
Overlap ‘U’ (D - D2)
0.068 - 0.100 mm
Max. D2
Min. B
Intake
Exhaust
40.516 mm
37.516 mm
133.4 mm
SSANGYONG Y200
1B3-112 DIESEL ENGINE MECHANICAL
YAD1BGY0
YAD1BHC0
YAD1BHD0
YAD1BHE0
15. Hang the cylinder head (1) to the lifting device
and heat in a water tank to approx. 80°C(176°F)
with mounting device 115 589 34 63 00.
18. Install the valve guide (3) with a proper drift
(Intake: 8 mm, Exhaust: 9 mm) and assembling
tool.
Notice: The valve guide must be driven in from
the cylinder head cover.
19. Machine the valve seats.
17. Drive in new valve seat ring (2) with a proper
wooden drift.
16. Cool down new valve seat ring (2) into the cooling
box 345 589 00 63 00 with liquid nitrogen.
Notice: Do not touch the cooled valve seat rings
with hand.
DIESEL ENGINE MECHANICAL 1B3-113
SSANGYONG Y200
CAMSHAFT
Preceding Work:
Removal of cylinder head cover
1 Bolt . . . . . . . . . . ... 25 N•m (18 lb-ft)
2 Washer
3 Camshaft Bearing Cap
4 Camshaft
5 Dowel Pin
6 Locking Washer
7 Timing Chain
8 Cylinder Head
9 Oil Pan
10 Camshaft Sprocket
11 Washer
12 12-Sided Bolt (M11)
. . . . . . . . . Check, 25 N•m (18 lb-ft)+ 90°
13 Gasket . . . . . . . . . . . . ... Replace
14 Chain Tensioner . . . . . ... 80 N•m (59 lb-ft)
YAD1BHH0
SSANGYONG Y200
1B3-114 DIESEL ENGINE MECHANICAL
YAD1BC10
YAD1BC30
YAD1BC20
YAD1BC40
Tools Required
602 589 00 40 00 Engine Lock
Removal Procedure
1. Rotate the crankshaft and position the piston of
No.1 cylinder at TDC.
Notice: Do not rotate the crankshaft in the opposite
direction of engine rotation.
3. Remove the starter motor and install the engine
lock 602 589 00 40 00.
2. Place alignment marks on the camshaft sprocket
and timing chain.
In this position, the markings of the camshaft/
camshaft bearing cap (arrow) must be aligned.
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