Assembly overview - sump, oil pump, with balancer shaft module — VW

Assembly overview - sump, oil pump, with balancer shaft module
Note
Metal shavings or a large quantity of small metal particles found during engine repair could indicate that the crankshaft bearings or conrod bearings are damaged. To avoid any subsequent damage, the following work must be carried out following the repair: Carefully clean oil channels and renew oil spray jets, engine oil cooler and oil filter.
For information about oil capacities, oil specifications and viscosity grades refer to
Maintenance tables
.
Oil drain plug
30 Nm
With captive seal rolled onto drain plug
Oil sump
Removing and installing
Chapter
.
Suction line
Clean strainer if soiled.
Bolt
9 Nm
Connection
To oil pump
O-ring
Renew after each removal.
Oil pump
Removing and installing
Chapter
.
Before installing, check that the two dowel sleeves for centring oil pump on balancer shaft module are fitted.
Drive shaft
For oil pump.
Circlip
Must lie in base of groove.
Renew damaged or over-tensioned circlip.
Dowel sleeve
Balancer shaft module
Removing
Chapter
Reinstalling previously run balancer shaft module
Chapter
.
Installing new balancer shaft module
Chapter
.
Before installing, check that the two dowel sleeves for centring balancer shaft module on cylinder block are fitted.
Spur gear
For balancer shaft.
Bolt
Renew after each removal.
20 Nm + turn 90° further
Bolt
With washer.
Renew after each removal.
90 Nm + 90°
Hub
For intermediate gear wheel.
Renew.
Intermediate gear wheel
A coating is applied to the new intermediate gear wheel which sets the correct tooth backlash through wear.
Installation position: Part number must be visible.
Make sure thrust washer is seated correctly
Fig.
.
Renew after each removal.
Thrust washer
For intermediate gear wheel.
Installation position
Fig.
.
To install intermediate gear wheel, secure to balancer shaft module with grease.
Renew after each removal.
Crankcase
With crankshaft
Crankshaft sprocket to drive oil pump
Bolt
Observe tightening sequence.
Installing new balancer shaft module
Chapter
.
Reinstalling previously run balancer shaft module
Chapter
.
Renew after each removal.
M7 = 13 Nm + 90°
M8 = 20 Nm + 90°
Dowel sleeve
Bolt
9 Nm
Oil extraction pipe
Bolt
9 Nm
Bolt
Renew after each removal.
Specified torque and tightening sequence
Fig.
.
Oil sump - specified torques and installation sequence
Note
Renew bolts for oil sump.
Tighten bolts in 3 stages:
Stage
Bolts
Specified torque
1.
1
to
20
Diagonally, 5 Nm
2.
arrows
40 Nm
3.
1
to
20
In diagonal sequence and in stages; final torque 15 Nm
Thrust washer installation position
Caution
Risk of thrust washer slipping behind intermediate gear wheel.
When installing intermediate gear wheel, make sure that thrust washer
A
does not slip out of balancer shaft module indentations
arrows
and subsequently become jammed. If necessary, fix in place with grease on balancer shaft module.