Installation - Yanmar 6LPA-STP2 Service Manual

Turbocharger
12/05
20. Apply liquid gasket (Three Bond No. 1207) to
the compressor side flange surface of seal plate
(Figure 9-2, (11)).
• Liquid gasket thickness: 0.1 to 0.2 mm (0.004
to 0.008 in.)
21. Assemble the compressor housing
(Figure 9-2, (31)) to the bearing housing
(Figure 9-2, (51)), aligning the match marks
made before disassembly. NOTICE: When
using new replacement bearing or compressor
housing parts, verify alignment of the oil inlet,
oil outlet and exhaust gas inlet locations during
assembly.
22. Tighten the M8 TORX bolt (Figure 9-2, (33)) to
230 ±10 kgf·cm, 22.56 ± 1 N·m
(17 ± 0.7 lb-ft).
23. Install the hose clip (Figure 9-2, (64)) on the
center of boost hose (Figure 9-2, (63)).
24. Install the boost hose (Figure 9-2, (63)) to the
compressor housing (Figure 9-2, (31)) and
waste gate actuator (Figure 9-2, ((61)).
25. Move the hose clip (Figure 9-2, (64)) to the
nipple of the compressor housing
(Figure 9-2, (31)) and waste gate actuator
(Figure 9-2, (61)), to prevent the boost hose
(Figure 9-2, (63)) from disconnecting.
26. Measure the turbine shaft end play. See
Inspection of Turbine Shaft Play on page 9-11,
if turbine shaft play is not within specifications,
identify the cause of the excessive movement
and correct the problem.
• Turbine shaft axial play:
Service standard: 0.06 to 0.09 mm (0.002 to
0.004 in.)
• Turbine shaft radial play:
Service standard: 0.10 to 0.17 mm (0.004 to
0.007 in.)
6LPA Service Manual

Installation

NOTICE: When installing the turbocharger on the
engine or handling the turbocharger after
installation, follow all instructions below. NEVER
allow debris or foreign matter into the turbocharger.
Lubrication path
1. Add new engine oil through the oil inlet port
before installation on the engine, then manually
turn the turbine shaft to lubricate the floating
and thrust bearings.
2. Flush the oil inlet pipe from the engine and
outlet pipe, and check for damage to the pipe or
dirt, foreign matter or restrictions in the pipes.
3. Connect the pipes securely to avoid oil leaks at
the joints.
Intake path
1. Check the intake line for foreign matter or dirt.
2. Connect securely to prevent air leaks at the
joints with the intake duct and air cleaner.
Exhaust path
1. Check the exhaust system for dirt and foreign
matter.
Note: Heat resistant steel nuts and bolts are
2. Connect the exhaust pipes securely to prevent
exhaust gas leaks at each pipe joint.
© 2007 Yanmar Marine International
TURBOCHARGER
used for the turbocharger installation,
never use ordinary nuts and bolts.
Always apply an anti-seizure compound
to the threads before tightening. Use
only heat resistant bolts for the turbine
housing.
9-19