Disassembly - Yanmar 6LPA-STP2 Service Manual

TURBOCHARGER
• Turbine Shaft Radial Play
• Service Standard: 0.10 to 0.17 mm (0.004 to
0.007 in.)
• Wear Limit: 0.205 mm (0.008 in.)
Note: Move the turbine shaft in a radial
direction while moving simultaneously to
the left and right sides (Figure 9-5, (4)).
Figure 9-5
(3)
Figure 9-5
1 – Oil Inlet
2 – Dial Indicator
3 – Magnet Base
9-12
(2)
(1)
0005238
© 2007 Yanmar Marine International

Disassembly

Component Identification (RHE6W
Turbocharger)
Inspection Before Disassembly
Before disassembly check the turbine and
compressor impellers for interference with their
housings. The turbine shaft should rotate smoothly.
Measure the turbine shaft play. See Inspection of
Turbine Shaft Play on page 9-11.
Turbine shaft axial play
Wear limit: 0.110 mm
(0.004 in.)
Disassembly
(4)
NOTICE: As mounting angles of the turbine
housing, bearing housing and compressor housing
of the turbocharger are determined according to
their mounting status on the engine, make match
marks before beginning disassembly.
1. Move the hose clip (Figure 9-2, (64)) to the
center of the boost hose (Figure 9-2, (63)).
2. Disconnect the boost hose (Figure 9-2, (63))
from the compressor housing (Figure 9-2, (31))
and waste gate actuator (Figure 9-2, (61)).
3. Remove the M8 TORX T screw bolt
(Figure 9-2, (33)) using a torque wrench
(TT40).
4. Remove the compressor housing
(Figure 9-2, (31)).
Note: Liquid gasket is applied to the
compressor housing (Figure 9-2, (31))
and seal plate (Figure 9-2, (11))
mounting surfaces.
Note: Avoid damaging the compressor
impellers when disassembling the
compressor housing.
Turbocharger
Turbine shaft radial play
Wear limit: 0.205 mm
(0.008 in.)
6LPA Service Manual