Cleanliness and care
An automobile engine is a combination of many turned, honed, polished and lapped surfaces to tolerances measured in ten-thousandths of an inch. Cleanliness and care are important when servicing internal engine parts. During assembly, a thick layer of engine oil is applied to the rubbing surfaces to protect and lubricate the surfaces during the initial period of operation. Proper cleaning and protection of machined surfaces and friction parts is part of the repair procedure. It is considered standard repair shop practice, even if not specifically stated. Once the valve train components have been removed for service, they must be maintained in good order. They should be installed in the same places and with the same mating surfaces as before dismantling. Disconnect the battery cables before carrying out major work on the engine. If the cable is not disconnected, cable harnesses or other electrical parts may be damaged.
Maintenance without dismantling from the engine
Attention! Disconnect the negative battery cable before removing or installing any electrical components, or if tools or equipment may come into contact with exposed electrical terminals. Disconnecting the cable will help to avoid injury and mechanical damage. It is also necessary that the ignition key is in the position "B", unless otherwise specified.
Note: When removing the air filter, the intake port must be covered. This measure will protect against accidental entry of foreign material that can enter the cylinder through the intake port and cause severe damage when the engine is started.