Camshaft Oil Seal: Service and Repair
Camshaft oil seal, replacing
Removing and installing camshaft sprocket oil seal
Removing and installing oil seal on Hall sender.
Special tools, workshop equipment, test and measuring appliances and aux. items required
^ 2085 Oil seal extractor
^ 3036 Counter hold tool
^ T10071 Puller
^ V.A.G 1331 Torque wrench (5 to 50 Nm)
^ V.A.G 1332 Torque wrench (40 to 200 Nm)
Removing oil seal on camshaft sprocket
- Remove toothed belt guard-upper part.
- Set camshaft sprocket to TDC No. 1 cylinder by turning the crankshaft. Mark on camshaft sprocket must align with mark on cylinder head cover.
- Remove cylinder head cover.
- Take toothed belt off camshaft toothed belt sprocket.
- Turn crankshaft back slightly.
- Remove camshaft sprocket. When loosening camshaft sprocket bolt counterhold with 3036.
- Screw camshaft sprocket securing bolt-arrow-into camshaft onto stop by hand, to guide seal extractor.
- Unscrew inner part of oil seal extractor 2085 two turns (approx. 3 mm) out of the outer part and lock in position 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 of extractor against camshaft until oil seal has been extracted.
Installing
Note: Gradual introduction of PTFE oil seal (identifying characteristics: no annular spring, sealing lip wider). The sealing lip of this oil ring must not be oiled or lubricated. A plain encased seal of older construction (with annular spring) may be replaced with a PTFE oil seal, but not vice versa.
- Before installing, remove oil remains from camshaft journal with a clean cloth.
- Fit assembly tool T10071/1 onto camshaft journal.
- Slide oil seal over assembly tool onto camshaft journal.
- Press seal in onto stop with press sleeve T10071/3 and bolt T10071/4.
The rest of the assembly is basically a reverse of the disassembling sequence.
When installing toothed belt and adjusting timing.