Yanmar 6LPA-STP2 Service Manual page 264

TURBOCHARGER
7. Apply engine oil to the journal of the turbine
shaft and insert the shaft from the turbine side
of the bearing housing (Figure 9-2, (51)).
NOTICE: Avoid damaging the floating bearing
during assembly to the turbine shaft. Position the
seal ring end on the engine oil inlet side after
centering with the turbine shaft.
8. Install the thrust bearing (Figure 9-2, (2)) on
the turbine shaft (Figure 9-2, (1)).
9. Apply engine oil to the thrust bearing
(Figure 9-2, (22)) and install it into the bearing
housing (Figure 9-2, (51)).
10. Apply Loctite on the threaded portion of M4
TORX T thrust bearing bolt (Figure 9-2, (53))
and torque to: 38 ± 3 kgf·cm, 3.73 ± 0.3 N·m
(32.7 ± 3 lb-in.).
11. Install the bearing housing (Figure 9-2, (51)) to
the turbine housing (Figure 9-2, (41)), aligning
match marks made before disassembly.
Note: When using new replacement bearing or
turbine housing parts, verify alignment of
the oil inlet, oil outlet and exhaust gas
inlet locations during assembly.
12. Torque the M8 TORX bolt (Figure 9-2, (44)) to
285 ±10 kgf·cm, 27.95 ± 1 N·m
(20.7 ± 0.7 lb-ft).
13. Install the seal ring (Figure 9-2, (4)) to the oil
thrower (Figure 9-2, (3)).
14. Insert the oil thrower (Figure 9-2, (3)) into seal
plate (Figure 9-2, (11)).
Note: Position the seal ring end on the oil inlet
side.
15. Apply liquid gasket (Three Bond No. 1207) on
the flange surface of seal plate
(Figure 9-2, (11)) on the turbine side.
• Liquid gasket thickness: 0.1 to 0.2 mm (0.004
to 0.008 in.)
9-18
Figure 9-9
(1)
1 – Apply liquid gasket at this location.
2 – Avoid liquid gasket from leaking from this
location.
16. Install the seal plate (Figure 9-2, (11)) to
bearing housing (Figure 9-2, (51)).
17. Apply Loctite on the threaded portion of M8
TORX bolt (Figure 9-2, (54)) for seal plate
mounting, and torque to 230±10 kgf·cm,
22.56 ± 1 N·m (17 ± 0.7 lb-ft).
18. Install the compressor impeller onto the turbine
shaft (Figure 9-2, (1)).
19. Using a box spanner wrench (14 mm) on the
turbine side end of the turbine shaft
(Figure 9-2, (1)) torque the shaft end nut
(Figure 9-2, (7)) to 80 ± 5 kgf·cm,
7.84 ± 0.5 N·m (69 ± 4 lb-in.).
Note: The shaft end nut uses left-handed
threads.
© 2007 Yanmar Marine International
Turbocharger
(2)
Figure 9-9
6LPA Service Manual
0005249