Oil Pump Drive Chain

Oil Pump Drive Chain

• This procedure is only possible when the transmission has been removed!

Special tools, testers and auxiliary items required

• Camshaft Bar (T10068 A)

• Counterhold Tool (T10172)

• Torque Wrench (5-50 Nm) (V.A.G 1331)

• Torque Wrench (40-200 Nm) (V.A.G 1332)

• Adjustment Tool (T10363)

• Silicone Adhesive Sealant (D 176 501 A1)

Conditions:

• The transmission is removed

• The flywheel is removed

• The oil pan is removed

• The sealing flange is removed

• The cylinder head cover is removed

Removing

- Remove the camshaft timing chain. Refer to => [ Camshaft Timing Chain ] Camshaft Timing Chain.

- Loosen the chain sprocket bolt - arrow - approximately 1 turn. Counter hold the vibration damper using the counterhold tool (T10172) when doing so.






- Lock the chain tensioner with tensioning rail using a 3 mm hex wrench - A -.






- Remove the chain tensioner with tensioning rail bolt - arrows - and tensioning rail.

- Remove the chain sprocket with the oil pump timing chain.

Installing






- Position the crankshaft at Top Dead Center (TDC).

• The ground down tooth, must be aligned with the main bearing cap joint - arrow A -.

- Rotate the oil pump shaft - 1 - until the flat side - arrow - is horizontal to the mark - 2 - on the oil pump.






- Install the timing chain onto the guide rail and mount it onto the crankshaft.

- Insert the large sprocket in the timing chain so that the mark - arrow B - is aligned with the mark on the oil pump.






- Place the chain sprocket on the oil pump shaft and install the bolt hand tight.

• If the chain sprocket cannot be installed, rotate the oil pump shaft slightly.

• Note the rotation direction of the used timing chain. Refer to => [ Identifying the timing chain ] Timing Chains Overview.

- Install the chain tensioner with tensioning rail and bolts - arrows -. Tightening specification, see - item 15 - in the => [ Timing Chains Overview ] Timing Chains Overview.






- Remove the 3 mm hex wrench - A -.

- Check the adjustment marks.






• The ground down tooth, must be aligned with the main bearing cap joint - arrow A -.

• The mark - arrow - must be aligned with the mark on the oil pump.

- Tighten the new chain sprocket bolt - arrow - to specification, see - item 7 - in the => [ Oil Pan/Oil Pump Overview ] Oil Pan/Oil Pump Overview. Counter hold the vibration damper using the counterhold tool (T10172) when doing so.






• Replace the chain sprocket bolt.

- Install the camshaft timing chain. Refer to => [ Installing ] Camshaft Timing Chain.