Fitting - Jonsered 2036 Workshop Manual

Cylinder and piston
Dismantle the piston from the connecting
rod.

Fitting

Mod. 2054/2055
Fit the piston on the connecting rod.
Make sure that the arrow on the piston
head points towards the exhaust port.
Inspect the impulse passage and hose
for damage and to make sure that they
are not blocked.
Check that the inlet pipe is not cracked or
loose.
Place a new cylinder base gasket on the
crankshaft's bearing housing and fit the
cylinder.
502 50 70-01
Cover the crankshaft's bearing housing
with a cloth and remove one of the piston
bolt's circlips by using a pair of flat pliers.
Press out the piston bolt from the connect-
ing rod and lift off the piston.
Fitting
Mod. 2054/2055
Before fitting the piston and cylinder refer
to chapters "Cleaning, inspection" and
"Analysis and procedure".
Lubricate the piston bolt's needle bearing
with a few drops of engine oil.
Align the arrow on the piston head to the
exhaust port.
Press in the piston bolt and fit the circlip.
Check that the circlip is fitted completely
down in the groove in the piston by turning
it with the pliers.
Check that the impulse passage in the
cylinder and hose is open and that the
hose is not cracked.
Check also that the rubber inlet pipe is not
damaged, e.g. cracked, or that its clip has
loosened.
Scrape off any remains of the gasket from
the cylinder base.
Scrape clean the crankshaft's bearing
housing from any remains of the old gasket
and place a new cylinder base gasket on
the sealing surface. Position it with grease.
Lubricate the crankshaft bearing and pis-
ton with a few drops of engine oil.
Fit the cylinder by using assembly set
502 50 70-01.
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