Installing The Compressor Impeller; Installing The Turbine Housing; Installing The Compressor Housing; Connecting The Boost Hose - Yanmar 6LY3 series Service Manual

Assembling the Turbocharger
12/05
Figure 9-14
(1)
(2)
(3)
Figure 9-14
1 – Fluid Sealant Application Spots
2 – No Sealant
3 – Avoid allowing sealant to overflow in this
area.
6. Place the seal plate on the bearing housing.
Secure the seal plate with TORX T machine
bolts and tighten to the specified torque value.
Seal Plate Bolt Torque
38 ± 3 kgf·cm (32.9 lb-in)

Installing the Compressor Impeller

1. Place the compressor impeller on the turbine
rotor shaft.
2. Tighten the turbine rotor shaft end nut to the
specified torque value. NOTICE: The turbine
rotor shaft end nut has left-hand threads.
Turbine Shaft Nut Torque
80 ± 5 kgf·cm (6.9 lb-in)

Installing the Turbine Housing

NOTICE: ALWAYS align the index marks when
assembling the turbocharger unit.
1. Make sure the oil inlet, oil outlet and air outlet
are in their correct positions.
6LY3 Service Manual
2. Position the turbine pressure plates and tighten
the M8 hexagon bolts to the specified torque
value.

Installing the Compressor Housing

1. Apply Three Bond
compressor-side flange face of the bearing
housing.
2. Align the index marks and join the compressor
housing to the bearing housing.
3. Make sure the oil inlet, oil outlet and air outlet
are in their correct positions.
0005902
4. Attach the compressor pressure plates and
tighten the M8 hexagon bolts to the specified
torque.

Connecting the Boost Hose

1. Place the clips to the center of the boost hose.
2. Install the boost hose from the compressor
housing to the wastegate actuator (Figure 9-1).
3. Install clips to the boost hose nipples.

Post-Assembly Inspection

1. Measure the rotor axial play and compare to the
specified limits. If the rotor play exceeds the
limits, disassemble and reassemble the
turbocharger. See Checking the Rotor Axial
Play on page 9-10.
2. Measure the rotor radial play and compare to
the specified limits. If the rotor play exceeds the
limits, disassemble and reassemble the
turbocharger. See Checking the Rotor Radial
Play on page 9-11.
Maintenance Standard: 0.11 - 0.18 mm (0.004 - 0.007 in.)
© 2007 Yanmar Marine International
TURBOCHARGER
Turbine Housing Bolt Torque
285 ± 10 kgf·cm (24.7 lb-in)
®
No. 1207 sealant to the
Thickness of Sealant
0.1 - 0.2 mm (0.003 - 0.007 in.)
Compressor Housing Bolt Torque
230 ± 10 kgf·cm (19.9 lb-in)
Rotor Axial Limits
0.06 - 0.09 mm (0.002 - 0.003 in.)
Rotor Radial Limits
9-21