Crankshaft seal (pulley side) - replace — VW

🧭 Before you start

Fits: platform codes 5U3, 5UC, 5UB

• Timing position: the crankshaft or camshaft is set and locked during this job
• Renewed: self-locking nuts

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• Always replace self-locking nuts and screws subject to angular torque — Remove toothed belt .
• It is not necessary to lubricate the new sealing lip with clean engine oil.
• The notched surface of the crankshaft sprocket (arrow) must be seated in the notched surface of the crankshaft.
• The contact surface between the crankshaft pulley and the crankshaft sprocket must be free from oil.

🔧 Engine codes this applies to

📋 Procedure

1. ⚠ Always replace self-locking nuts and screws subject to angular torque — Remove toothed belt .
2. Remove the sprocket (1) from the crankshaft, in the direction of (arrow).
3. ⚠ Risk of compromising the engine.To prevent modifications in distribution times, the crankshaft must not be moved from the TDC while the crankshaft pulley is removed. — Remove the seal with the Puller T20143/2 in the direction of the (arrow).
4. Clean the sliding and sealing surfaces. [Note: It is not necessary to lubricate the new sealing lip with clean engine oil.]
5. Fit the Assembly sleeve T10485/2 and the Assembly sleeve T10485/3 in the direction of the (arrow).

6. Pass the seal with the lip facing the narrow part of the sleeve cone, in the direction of the (arrow) in the Assembly sleeve T10485/2.
7. Remove the Assembly sleeve T10485/3 in the direction of the (arrow).
8. Install the Assembly sleeve T10485/2 with the sealant (1) onto the crankshaft web.
9. Install the Fitting tool T10485/1 with the crankshaft pulley (vibration damper) fastening bolt (2), installing the seal until reaching the stop.
10. Install the crankshaft sprocket as indicated (arrow).
11. The notched surface of the crankshaft sprocket (arrow) must be seated in the notched surface of the crankshaft.
12. The contact surface between the crankshaft pulley and the crankshaft sprocket must be free from oil.
13. Install toothed belt .

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