P
r
o
t
e
c
t
e
d
b
y
c
o
p
y
r
i
g
h
t
.
C
o
p
y
i
n
g
f
o
r
p
r
i
v
a
t
e
o
r
c
o
m
m
e
r
c
i
a
l
p
u
r
p
o
s
e
s
,
i
n
p
a
r
t
o
r
i
n
w
h
o
l
e
,
i
s
n
o
t
p
e
r
m
i
t
t
e
d
u
n
l
e
s
s
a
u
t
h
o
r
i
s
e
d
b
y
V
o
l
k
s
w
a
g
e
n
A
G
.
V
o
l
k
s
w
a
g
e
n
A
G
d
o
e
s
n
o
t
g
u
a
r
a
n
t
e
e
o
r
a
c
c
e
p
t
a
n
y
l
i
a
b
i
l
i
t
y
w
i
t
h
r
e
s
p
e
c
t
t
o
t
h
e
c
o
r
r
e
c
t
n
e
s
s
o
f
i
n
f
o
r
m
a
t
i
o
n
i
n
t
h
i
s
d
o
c
u
m
e
n
t
.
C
o
p
y
r
i
g
h
t
b
y
V
o
l
k
s
w
a
g
e
n
A
G
.
4 Pistons and conrods
⇒ “4.1 Assembly overview - pistons and conrods”, page 56 .
⇒ “4.2 Checking piston and cylinder”, page 57 .
⇒ “4.3 Piston and cylinder dimensions”, page 61
4.1 Assembly overview - pistons and conrods
1 - Piston rings
❑ Offset gaps by 120°
❑ Use piston ring pliers to
remove and install.
❑ “TOP” faces towards
piston crown.
❑ Checking ring gap
⇒ page 57 .
❑ Checking ring-to-groove
clearance ⇒ page 57 .
2 - Piston
❑ Checking ⇒ page 58
❑ Mark cylinder number
and installation position
relative to conrod.
❑ The two deep valve
pockets in the piston
crown point to the centre
of the cylinder block.
❑ Installing piston
⇒ page 58 .
3 - Retaining ring
❑ Ensure firm seating
4 - Connecting rod
❑ Renew as set only.
❑ Mark cylinder number
-B-
❑ Installation position:
marks -A- must be
above one another.
5 - Bearing shell
❑ Observe installation po‐
sition
❑ Do not interchange used bearing shells.
❑ The lugs on bearing shells must fit tightly in the recesses.
❑ Axial clearance new: 0.05 to 0.31 mm; wear limit: 0.40 mm
❑ Measure radial clearance using Plastigage; new: 0.02 to 0.07 mm; wear limit: 0.10 mm. Do not rotate
crankshaft when checking radial clearance.
6 - Conrod bearing cap
❑ Mark cylinder number -B-
❑ Installation position: marks -A- must be above one another.
7 - 40 Nm +
1
/
4
turn (90°) further
❑ Renew
❑ Oil threads and contact surface
Touareg 2010 ➤ , Touareg 2015 ➤
6-cylinder direct-injection engine (3.6 l engine, 4V) - Edition 12.2019
56 Rep. gr.13 - Crankshaft group
To Next Page
Loading...
