Volkswagen Workshop Service and Repair Manuals > Polo Mk5 > Power unit | 4-cyl. injection engine with timing chain | Enginecrankshaft group, pistons | Cylinder block, sealing flange | Renewing crankshaft oil seal

Renewing crankshaft oil seal - belt pulley end

Special tools and workshop equipment required

t	Oil seal extractor -3203-

t	Torque wrench (40...200 Nm) -V.A.G 1332-

t	Assembly tool -T10117-

Removing

–	Remove front right wheel housing liner → General body repairs; Rep. Gr.66.

–	Remove poly V-belt → Chapter.

–	Now remove pulley securing bolt. Hold pulley with counterhold tool -3415- and -3415/1-.

–	Remove centre bolt and remove crankshaft pulley.

–	Unscrew inner part of oil seal extractor -3203- three turns (approx. 5 mm) out of outer part and lock with knurled screw.

–	Lubricate threaded head of oil seal extractor, place it in position and exerting firm pressure screw it into oil seal as far as possible.

–	Loosen knurled screw and turn inner part against crankshaft until the oil seal is pulled out.

–	Remove bearing bush from crankshaft journal and clean contact surfaces of crankshaft chain sprocket and bearing bush.

Installing

Note

Note that belt pulley contact surfaces, securing bolt, bearing bush and crankshaft chain sprocket must be free of oil and grease.

–	Fit sleeve -T10117- onto bush and slide oil seal onto bush.

–	Remove sleeve -T10117- from bush.

–	Drive oil seal into control housing as far as it will go using assembly tool -T10117- and striking evenly with a hammer.

Further assembly is basically the reverse of the dismantling procedure.

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