Exploded view - oil pump, sump - engines with balance shaft assembly — AUDI

Exploded view - oil pump, sump - engines with balance shaft assembly
Seal
Renew
Oil drain plug
30 Nm
Sump
Removing and installing
Chapter
Bolt
9 Nm
Suction pipe
Clean strainer if dirty
O-ring
Renew
Oil pump
Removing and installing
Chapter
Before installing, check that the two dowel sleeves for centring oil pump are fitted onto balance shaft assembly
Drive shaft
For oil pump
Circlip
Must fit securely in groove
Renew circlip if damaged or stretched
Spur gear
For balance shaft
Bolt
Renew
20 Nm + turn 90° further
Thrust washer
For idler gear
Renew
Installation position
Fig.
When installing idler gear, apply grease to hold washer on balance shaft assembly
Idler gear
For balance shaft assembly
If the bolt for the idler gear has been slackened or the spur gear on the crankshaft or the crankshaft itself have been renewed, you must install a new idler gear with the appropriate coating. Procedure for installation
Chapter
“
Installing a new balance shaft assembly
”
To achieve the correct backlash a suitably thick coating is already applied to the new idler gear; the required clearance is achieved as the coating is worn down
Installation position: Part No. must be visible.
Make sure thrust washer is properly seated
Fig.
Bolt
With washer
Renew
If the bolt for the idler gear has been slackened or the spur gear on the crankshaft or the crankshaft itself have been renewed, you must install a new idler gear with the appropriate coating. Procedure for installation
Chapter
“
Installing a new balance shaft assembly
”
90 Nm + turn 90° further
Hub
For idler gear
Renew
Spur gear
Pulling spur gear off crankshaft and shrink-fitting new spur gear
Chapter
Dowel sleeves
For centring balance shaft assembly on cylinder block
Balance shaft assembly
Removing
Chapter
Before installing, check that the two dowel sleeves for centring balance shaft assembly are fitted on cylinder block
Installing new balance shaft assembly
Chapter
Re-installing "old" balance shaft assembly
Chapter
Bolt
Renew
Tightening torque and sequence
Fig.
Dowel sleeves
Bolt
9 Nm
Oil intake pipe
Bolt
9 Nm
Seal
Renew
Oil level and oil temperature sender
G266
Removing and installing
Chapter
Bolt
Self-locking
Renew
9 Nm
Bolt
Tightening torque and sequence
Fig.
Sump - tightening torque and sequence
Tighten bolts in 3 stages as follows:
Stage
Bolts
Tightening torque
1.
1 … 20
5 Nm in diagonal sequence
2.
arrows
40 Nm
3.
1 … 20
Tighten in stages and in diagonal sequence; final torque 13 Nm
Installation position of thrust washer
Caution
Thrust washer can slip out of position behind idler gear.
Make sure that thrust washer
A
does not slip out of the recesses in the balance shaft assembly
arrows
when fitting the idler gear. If this is neglected, the thrust washer can become trapped. If necessary, apply grease to hold washer on balance shaft assembly.
Balance shaft assembly - tightening torque and sequence
Note
Renew the bolts tightened with specified tightening angle.
Tighten bolts in 5 stages in the sequence shown:
Stage
Bolts
Tightening torque/angle specification
1.
1 … 6
Screw in hand-tight in this sequence
2.
1 … 6
Pre-tighten bolts in this sequence to 6 Nm
3.
1 … 4
Tighten to 20 Nm
4.
5 and 6
Tighten to 13 Nm
5.
1 … 6
Use rigid wrench to turn 90° further in this sequence