How to replace timing chain on Vauxhall/Opel Agila B 1.0 Twinsport

Special tools

• Crankshaft pulley holding tool (K10B) – No.KM-6347.
• Crankshaft pulley holding tool handle (K10B) – No.KM-956-1.
• Crankshaft pulley holding tool (K12B) – No.KM-6047.
• Crankshaft pulley puller (K10B) – No.KM-161-B.
• Crankshaft pulley puller (K12B) – No.KM-210-3.
• Crankshaft pulley puller adapter (K10B/K12B) – No.EN-49150.

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.

Valve timing procedures

• Removal/installation of timing chain requires:
  • Sump removal.
• Ensure crankshaft keyway aligned with cylinder block notch [1] .
• Ensure camshaft sprocket timing marks aligned [2] .
• Remove timing chain tensioner [3] .
• Remove tensioner rail and chain guide.
• Remove timing chain and crankshaft sprocket as an assembly.
• Align coloured chain links with timing mark on each camshaft sprocket [4] .
• Align coloured chain link with timing mark on crankshaft sprocket [5] .
• Install new chain guide [6] . Tightening torque: 11 Nm.
• Install new tensioner rail [7] . Tightening torque: 25 Nm.
• Ensure coloured chain links aligned with timing mark on each sprocket [4] & [5] .
• Install new tensioner assembly [3] . Tightening torque: 11 Nm.
• Turn crankshaft 2 turns clockwise to TDC on No.1 cylinder.
• Ensure crankshaft keyway aligned with cylinder block notch [1] .
• Ensure timing marks on camshaft sprockets aligned [2] .