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To time the camshafts you will need to remove the 2 blanking plugs on the gearbox end of the cylinder head. You will have prize them out. Rotate the engine until the 2 offset slots in the ends of the cam shafts are below the centre line of the upper and lower cylinder head and insert the timing tool.
There is a blanking bolt to the right of the dipstick which you remove to insert the TDC
You shouldn***8217;t need to undo the cam shaft sprockets if replacing the belt. It***8217;s best to buy a complete belt kit with tensioner and guide roller as the rollers can also fail. You should get 2 new blanking plugs with the kit. It might also be worth changing the water pump at the same time as this is also driven by the timing belt.
You will have to remove the drivers side engine mounting and jack the engine up and down.