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Removing and installing camshaft > < Reworking exhaust valve

Golf Mk3

Renewing camshaft oil seal
   
Renewing camshaft oil seal
Special tools and workshop equipment required
t  Assembly tool -T10071-
t  Counterhold tool -3036-
t  Oil seal extractor -2085-
t  Torque wrench -V.A.G 1331-
t  Torque wrench -V.A.G 1332-

  Note
   
t  A PTFE oil seal is being gradually introduced (Teflon) -2- in place of oil seal with internal circular spring -1-. This has a wider sealing lip. PTFE oil seals are installed free of oil and grease.
t  An older design radial shaft seal (with coil spring) may be replaced by a PTFE seal, but not the other way around.
Removing
–  Remove upper toothed belt guard.
–  Loosen camshaft pulley (using counterhold tool -3036-).
–  Set camshaft pulley to TDC No. 1 cylinder by turning crankshaft.
Engine codes AAM, ABS, ADZ, ANN, ANP
  A15-0578
Marking on camshaft pulley must align with arrow on toothed belt guard.
  V15-0849
Engine codes 2E, ADY, AGG, AKR
A - Cylinder head cover installed
Arrow on cylinder head cover must align with marking on camshaft pulley.
B - Cylinder head cover removed
Marking on camshaft pulley must align with cylinder head.
Continuation for all engine codes
–  Loosen tensioning roller and remove toothed belt.
–  Pull off camshaft pulley.
–  Remove Woodruff key from camshaft.
–  Screw camshaft pulley securing bolt with washer into camshaft to stop.
–  Screw inner part of oil seal extractor -2085- two turns (approx. 3 mm) out of outer part and lock with knurled screw.
  V13-1234
–  Lubricate threaded head of oil seal extractor -2085-, place in position and exerting firm pressure, screw it as far as possible into oil seal.
–  Loosen knurled screw and turn inner part against camshaft until the oil seal is pulled out.
–  Clamp flats of oil seal extractor in vice. Remove oil seal with pliers.
Installing:
Install PTFE oil seals “dry”.
Lightly oil coil spring oil seals.
–  Clean camshaft journals with a clean cloth.
–  Position seal using assembly tool -T10071- and press in onto stop using press sleeve -T10071/1- and bolt -T10071/2-.
–  Insert Woodruff key in camshaft.
–  Fit camshaft pulley and tighten to 80 Nm (using counterhold tool 3036).
–  Install toothed belt and tension (adjust valve timing) → Chapter.
  V15-0623

Removing and installing camshaft > < Reworking exhaust valve