JAC J2 User Manual



Maintenance Manual for J2 Sedan
Mechanical Part of Engine
83
mark side.
g. Screw in the guide sleeves, clearance
between
the two sleeves should be 3mm plus the
calculated L in Step 2.
h.
With
the
front m
ark
facing
downwards
,
install piston and connecting rod on mounting
base of piston pin.
i.
Install
piston pin
by
the
press.
Attention:
■
If the
pressing
load
exceeds
specified
value,
replace
the pis
ton pin
and
piston
assembly
and/or
the connecting rod.
Standard value: 108±54N·m
⑦
 Install piston
pin.
Attention:
■
When
mounting
the
piston
ring,
do
not
damage
the
piston.
■
Do
not
damage
the
piston
ring
due
to
the
excessive
expansion.
a.
Install
oil
ring
a)
Install oil
ring lini
ng ring
into the
piston rin
g groove.
Then inst
all t
he uppe
r and
lower blades.
Attention:
■
Lining
ring
and
blade
can
be
installed
in
two
directions
。
。。
。
 There is no difference between
upper and lower blades.
■
Lining
ring
and
blade
size
coloring
scheme.

Table of lining ring and blade size coloring scheme

Size Color
Standard Colorless
Extended
by
0.50mm
Blue
Extended
by
1.00mm
Y
ellow
b)
To
install the b
lade, install one
end of
blade into the
groove (as shown in
the diagram) before
pressing the oth
er areas to
place.
Attention:
■ Do
install
blades
by
using
piston
ring
expander, otherwise, they may break.
c)
After
installation of
the
blades,
check whether
they can move
smoothly in both directions.
Fig.1.1.073
Fig.1.1.074
Guide
Sleeve B
Guide
Sleeve A
Piston Ring
Expander


JAC J2 Specifications

General

Brand	JAC
Model	J2
Category	Automobile
Language	English