Crankshaft And Crankcase - Husqvarna 331RB Workshop Manual

5. Attach the G snap rings.
6. Make sure that the pulse channel in the cylinder is
open.
7. Put a new cylinder base gasket on the crankcase.
8. Lubricate the piston and the large end bearing with
some drops of two-stroke oil.
9. Use the piston ring compressor and carefully move
the cylinder into position.
CAUTION: Do not turn the cylinder. The
piston rings break easily.
10. Tighten the 4 screws diagonally to the correct
Servicing data on page 6 .
torque. Refer to
11. Assemble the remaining parts of the cylinder and
piston in the opposite sequence to how they were
disassembled. Refer to
and piston on page 30 .
1281 - 001 -
To disassemble the cylinder

7.10 Crankshaft and crankcase

7.10.1 To disassemble the crankshaft and
crankcase
To get access to the crankshaft and crankcase, you
must remove all components of the product. Refer to the
manual section for each component for instructions.
1. Remove the starter. Refer to
starter on page 12 .
2. Remove the ignition system. Refer to
disassemble the ignition system on page 25 .
3. Remove the muffler. Refer to
the muffler on page 15 .
4. Remove the carburetor. Refer to
and assemble the carburetor on page 20 .
5. Remove the cylinder and piston. Refer to
disassemble the cylinder and piston on page 30 .
6. Remove the key for the flywheel.
7. Remove the 4 screws (A) from the crankcase cover
(B).
B
8. Remove the crankcase cover (B). Remove the
crankshaft (C) from the crankcase (D). Remove the
crankcase gasket (E).
E
D
To disassemble the
To
To remove and install
To disassemble
To
A
B
C
Repair instructions - 33