The hydraulic tensioner is installed in the front part of the cylinder head (on the right side) under the outlet pipe of the cooling jacket
The tensioner is spring-hydraulic: the preliminary tension of the chain (with the engine off) is provided by the spring, the working tension (after starting the engine) is provided by the oil pressure, which is supplied through a steel tube from the adapter under the emergency oil pressure sensor.
Using a special 10 mm split key (covering five faces), unscrew the nipple of the oil supply pipe to the hydraulic tensioner (for clarity, the hoses of the cooling jacket outlet pipe are disconnected).
Move the pipe away from the tensioner.
Using a 10 mm socket, unscrew the two nuts securing the tensioner to the cylinder head
Remove the tensioner.
Remove the sealing gasket
To remove the oil supply line to the hydraulic tensioner, use a 10 mm open-end wrench to unscrew the tube nipple and move it away.
Using a 21 mm open-end wrench, unscrew the cylinder block nipple and remove the nipple and pipe with sealing copper washers.
We install the hydraulic tensioner of the camshaft drive chain and its tube in the reverse order.
We change the sealing gasket of the hydraulic tensioner to a new one