Volvo Penta TD520GE Workshop Manual page 45

Group 21
29. Position the piston ring gaps 120° apart.
30. Use piston ring compressor 999 8687 and push
the piston (complete with connecting rod) into the
engine block.
IMPORTANT! Be careful, the piston rings are
frail and can easily be damaged.
The piston ring compressor may not be opened
after the piston has been placed in the tool,
since the piston rings then can be damaged.
Always push out the piston before the tool is
opened.
NOTE! The flywheel symbol (punched into the top of
the piston and the guide pins on the connecting rod)
must point towards the flywheel.
31. Lightly oil the crank pin. Press the connecting rod
onto the crank pin. Fit the big end bearing cap (in
accordance with the marking).
32. Tighten the new big end bearing screws as fol-
lows:
Initial torque: ............................. 30 Nm (22 lbf ft)
1 st tightening angle: ........................................ 60°
2 nd tightening angle: ....................................... 60°
NOTE! You should renew the big end screws every
time you remove them.
33. Turn the crankshaft to check that the connecting
rods are running freely on the connecting crank
pins.
Assembly, complete engine
55