Dismantling - Husqvarna 326 E Workshop Manual

6
The cylinder and the piston are two of the components exposed to most strain in the engine. They must withstand, for
example, high speeds, large temperature swings and high pressure. Moreover, they must be resistant to wear. Despite
these tough working conditions, major piston and cylinder failure is relatively uncommon. The reasons for this include
new coatings in the cylinder bore, new types of oil and grease and refi ned manufacturing techniques.
When servicing these components, cleanliness is of the utmost importance.
Before dismantling or other actions are performed on the cylinder block and valve mechanism it is recommended that a
compression test is made to easily determine whether any faults exist, for example, leaking valves, leaking valve guides,
damaged piston rings or a damaged piston.
50
Cylinder and piston

Dismantling

Dismantle all parts around the cylinder
incl. the distance piece with attached
carburettor.
502 50 18-01
NOTE!
Ensure that the nut in the nut recess on the distance piece is not lost.
Remove the bolts holding the cylinder.
Alternative
Dismantling
Dismantle the following parts:
Cylinder cover, muffl er grille, muffl er with
heat guard plate, starter and spark plug.
Move the fuel tank.
Now remove the 2 screws holding the
distance piece against the crankcase and
the screw next to the fuel pump.
Remove the distance piece with the at-
tached carburettor.
Remove the 4 bolts holding the cylinder
against the crankcase.
Pull the cylinder straight up without turning
it. There is a risk that a piston ring may
break.
Alternative
Lift off the cylinder with the crankshaft
from the crankcase.
Then pull out the crankshaft and the
piston (without twisting it as there is a risk
that the piston ring can break) from the
cylinder bore.