Piston Assembly - Husqvarna CR 50 / 2011 Workshop Manual

Ed. 01-09-2010
ENGINE

Piston assembly

- Secure connecting rod with the wooden support.
- Oil connecting rod small end bearing, and install it inside connecting rod
small end.
- Lay down piston, the arrow on piston crown indicates exhaust groove direc-
tion.
- Manually slide piston pin inside connecting rod small end, and fit piston pin
retaining ring with the open side facing down.
- Turn piston ring so as to make antitorsional piston ring engage inside piston
ring opening (1).
- Fit cylinder bottom gasket, compress piston ring by hand, and install oiled
cylinder onto piston.
If neither piston, nor cylinder, crankshaft, engine crankcase have been
changed, you can use a gasket having the same thickness as be-
fore.
- Working crossways, tighten flanged nuts (2) at cylinder bottom to a torque
of 18 Nm / 1.8 Kgm / 13.28 ft/lb.
- Install new O-rings (4) inside grooves.
F.21