The timing marks on an Opel Corsa 1.4 8 valve engine are located on the camshaft sprocket and the crankshaft pulley.
Camshaft Sprocket
* The camshaft sprocket has two timing marks.
* The first timing mark is a small notch located on the upper edge of the sprocket.
* The second timing mark is a larger notch located on the lower edge of the sprocket.
Crankshaft Pulley
* The crankshaft pulley has one timing mark.
* The timing mark is a small notch located on the upper edge of the pulley.
Aligning the Timing Marks
To align the timing marks, follow these steps:
1. Remove the valve cover.
2. Rotate the crankshaft until the piston in cylinder number one is at top dead center (TDC).
3. Check that the notch on the camshaft sprocket is aligned with the notch on the crankshaft pulley.
4. If the notches are not aligned, rotate the crankshaft one full turn and check again.
Installing the Timing Belt
Once the timing marks are aligned, you can install the timing belt. To do this, follow these steps:
1. Place the timing belt around the camshaft sprocket and the crankshaft pulley.
2. Tension the timing belt using the tensioner.
3. Reinstall the valve cover.
Checking the Timing
Once the timing belt is installed, you should check the timing to make sure that it is correct. To do this, follow these steps:
1. Remove the spark plug from cylinder number one.
2. Insert a piston stop into the cylinder.
3. Rotate the crankshaft until the piston stop comes into contact with the piston.
4. Check the timing marks on the camshaft sprocket and the crankshaft pulley.
5. If the notches are not aligned, adjust the timing belt as necessary.
