Toyota Aygo 2005 to 2011 Engine 1KR-FE Timing Chain Diagram

Spacial Tool :

1. Crankshaft pulley holding tool
2. Timing Chain Tensioner locking pin

General precautions

1. Disconnect battery earth lead.
2. Remove spark plugs to ease turning engine.
3. Turn engine in normal direction of rotation (unless otherwise stated).
4. Observe tightening torquas_
5. Iffitted: Mark position of crankshaft position (CKP) sensor before removal.
6. Do NOT turn crankshaft Via camshaft or other sprockets.
7. Do NOT turn crankshaft or camshaft with timing chain removed.

Valve timing procedures

1-Removal/lnstallation of timing chain requires:

2- Engine removal.

3- Sump removal

  • Ensure crankshaft pulley and timing chain cover TDC marks aligned

  • Ensure camshaft sprocket timing marks at 12 0'clock position [2] & [3] : If not, turn crankshaft pulley 360'

4- Lock tensioner in retracted position:

 • Lift pawl upwards [4]

  •Push plunger [6] through tensioner body in direction of arrow.

  •Push pawl downwards [6]

  •Lock tensioner in retracted position With pin [7]

5- Ensure yellow coloured chain link aligned with timing marks on crankshaft sprocket [8]

6- Ensure orange coloured chain links aligned with timing mark on each camshaft sprocket [2] &

7- Remove pin [7] to release timing chain tensioner plunger