Removing
1. To improve access to the vacuum pump, remove the air supply pipe to the air filter.
2. Loosen the clamp and disconnect the vacuum hose from the pump.
3. Unscrew bolts/nuts of fastening of the pump to the left forward side of a head of the block of cylinders.
4. Remove the pump from the engine. On engines with a volume of 1.9 liters, the pump has 2 sealing rings, on engines with a volume of 2.1 liters - 1 ring. O-rings must be replaced.
Installation
1. Install a new o-ring (arrows) into the pump opening.
2. Align the protrusion on the pump shaft with the groove of the camshaft and install the pump on the cylinder head. Do not dislodge the O-ring (protrusion and groove are indicated by arrows).
3. Secure the pump with bolts/nuts.
4. Connect the vacuum hose to the pump and secure it with a clamp.