Volvo Penta D65A MS Workshop Manual page 183

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Group 25 Inlet and Exhaust System
Install shaft & turbine wheel and bearing
1. Install the bearing housing, the snap rings and
the bearing on the turbine side, and the snap ring
on the compressor side.
NOTE! Use only snap ring pliers to install snap rings.
After installing the snap ring, rotate it with a finger to
make sure it rotates smoothly.
NOTE! Apply engine oil to the outside and inside sur-
faces of the bearing before installation.
2. Place the bearing housing on the compressor
cover, and install the turbine backplate.
3. Insert the piston ring into the groove on the shaft
& turbine wheel
4. When installing the shaft & turbine wheel mount-
ed with the piston ring in the bearing housing, po-
sition the ring on the shaft so that there is a small
space (A) at the ring end gap side (B) and a large
space (C) on the other side. Then insert the shaft
& turbine wheel while rotating.
IMPORTANT! Do not expand the piston ring ex-
cessively or twist the ends when installing on
the shaft & turbine wheel.
IMPORTANT! Do not apply excessive forte with-
out tentering the shaft properly during the instal-
lation of the shaft & turbine wheel.
NOTE! After installing the piston ring in the ring
groove, apply Moly Disulfide to the ring before as-
sembly.
5. Hold the shaft end and tum the assembly over so
the compressor side faces up. Install the bearing
on the compressor side and then mount the bear-
ing housing in the turbine housing and fasten the
v-clamp temporarily.
183