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How to Replace timing chain in cylinder head on VW Golf 4 1.8 T

Special tools

  • Camshaft sprocket holding tool – Tool No.3036.
  • 1,8 engine: Chain tensioner/camshaft adjuster retaining tool – Tool No.3366.
  • 2,0 engine: Chain tensioner/camshaft adjuster retaining tool – Tool No.T10092.

General precautions

  • Disconnect battery earth lead.
  • Remove spark plugs to ease turning engine.
  • Turn engine in normal direction of rotation (unless otherwise stated).
  • Observe tightening torques.
  • If fitted: Mark position of crankshaft position (CKP) sensor before removal.
  • Do NOT turn crankshaft via camshaft or other sprockets.
  • Do NOT turn crankshaft or camshaft with timing chain removed.
How to Replace timing chain in cylinder head on VW Golf 4 1.8 T
How to Replace timing chain in cylinder head on VW Golf 4 1.8 T

Valve timing procedures

  • Removal/refitting requires:
      • Remove timing belt.
  • Engine at TDC on No.1 cylinder [1] or [2] .
  • Ensure timing marks on camshaft rear sprockets aligned [3] .
  • Remove camshaft front sprocket. Use tool No.3036.
  • Fit chain tensioner/camshaft adjuster retaining tool. Tool No.3366 or T10092 [4] or [5] .

    NOTE: DO NOT overtighten chain tensioner/camshaft adjuster retaining tool as damage may occur.

  • If reusing timing chain: Mark chain links with paint against timing marks on sprockets [6] & [7] .NOTE: Chain link on exhaust camshaft sprocket slighty offset from camshaft sprocket timing mark [6] .
  • Ensure camshaft timing marks separated by 16 link rollers, with link rollers 1 and 16 aligned with timing marks as shown [6] & [7] .
  • Remove and refit chain tensioner/camshaft adjuster complete with camshafts.
  • Tighten chain tensioner/camshaft adjuster bolts. Tightening torque: 10 Nm.

NOTE: Allow 30 minutes after installing camshafts before starting engine to prevent engine damage.

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