Cylinder - Pressure Testing; Crankcase And Crankshaft - Husqvarna 357XP/G Workshop Manual

Cylinder – pressure testing
• Loosen the carburettor bolts so that the carbu-
rettor can be moved back about 4 mm. Insert
cover plate 502 54 11-02 between the carburet-
tor and the carburettor flange. Tighten the
carburettor bolts to a torque of 1–1.5 Nm.
• Loosen the silencer bolts so that the silencer
can be moved back about 4 mm. Insert cover
plate 502 54 11-02 between the silencer and the
exhaust flange on the cylinder flange. Tighten
the silencer bolts to a torque of 8–10 Nm.
• Unscrew and remove the spark plug. Screw in
pressure test nipple 503 84 40-02. Connect tool
502 50 38-01 to the nipple. The decompression
valve must be closed. For instructions on testing
the decompression valve see "Decompression
valve - pressure testing".
• Pump up the pressure to 80 kPa (0.8 bar).
• Wait 30 seconds.
• The pressure should not be less than 60 kPa
(0.6 bar).
• Remove the cover plates from the silencer and
carburettor, tighten the bolts to the specified
torque. Remove the pressure test nipple 503 84
40-02 and refit the spark plug.
WARNING!
After pressure testing the cylin-
der, check that the inlet manifold
is seated correctly, otherwise the
saw may be damaged.
Crankcase and crankshaft –
dismantling
1
Remove the following:
• guide bar and chain
• clutch cover
• cylinder cover
• starter assembly, see "Starter assembly -
removal"
• ignition system, see "Ignition module/flywheel -
removal"
• generator, see "Replacing the generator"
• centrifugal clutch, see "Centrifugal clutch -
removal"
• oil pump, see "Oil pump - removal"
• bark rest
• chain tensioner
• throttle pushrod
• carburettor, see "Carburettor - removal"
• carburettor base
• silencer, see "Silencer - removal"
• piston and cylinder, see "Piston and cylinder -
removal"
• fuel tank, see "Fuel tank - removal"
NOTE!
Take care to prevent dirt or foreign parti-
cles getting into the bearings.
2
Unscrew the 6 bolts that hold the crankcase
together.
Repair instructions
43
English –