Renewing crankshaft sealing flange - belt pulley end — VW

🧭 Before you start

Fits: platform codes 1C1, 1Y7

• Timing position: the crankshaft or camshaft is set and locked during this job

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• Once sealing flange has been removed, clean removal wedge3409 as this is designed for removing parts of the interior equipment.
• Do not additionally oil or grease the sealing lip of the sealing flange.To prevent the sealing lip of the sealing flange from folding over during installation, the following work steps must be strictly adhered to.
• The crankshaft sealing flange -belt pulley side- must be installed within 5 minutes of the sealant being applied.

🔧 Engine codes this applies to

📋 Procedure

1. Remove poly V-belt for air conditioner compressor .
2. Lock crankshaft .
3. Unbolt pulley from crankshaft.
4. Remove tensioning element (1).
5. Remove bolts (2).

6. Starting at dowel sleeves (arrows), start levering off sealing flange (1) with a suitable screwdriver (A).
7. Use removal wedge3409 to support screwdriver so that damage to sealing surface of cylinder block is prevented.
8. Press off sealing flange completely. [Note: Once sealing flange has been removed, clean removal wedge3409 as this is designed for removing parts of the interior equipment.]
9. ⚠ To avoid injury from swarf, wear eye protection and protective clothing. — Remove sealant residue from cylinder block using a rotating plastic brush, for example.
10. ⚠ Be sure that no sealant residue gets into the engine. — Clean sealing surface of cylinder block and crankshaft journals. These must be free of oil and grease. [Note: Do not additionally oil or grease the sealing lip of the sealing flange.To prevent the sealing lip of the sealing flange from folding over during installation, the following work steps must be strictly adhered to.]
11. Spread sealing lip of new sealing flange, as shown, using assembly sleeve T03004.
12. After a short time, remove assembly sleeve T03004, turn it 180° and insert it in seal.
13. Cut off nozzle on tube at front marking (∅ of nozzle approx. 2 mm). [Note: The crankshaft sealing flange -belt pulley side- must be installed within 5 minutes of the sealant being applied.]
14. Apply sealant bead (A), as shown, in groove of sealing flange.
15. Place sealing flange with assembly sleeve T03004 on crankshaft journal and press onto cylinder block evenly.
16. Tighten bolts (A) evenly in diagonal sequence.

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