If you are wondering about whether you need a new viscous coupling, here is how to tell: 1. According to the manufacturer of the viscous couplings, the VC is only built to last 100,000kms (about 65,000 miles).he symptom that would cause you to know that your VC is too aggressive is usually that when you enter a paved parking lot and you make tight turns after a period of highway driving that the vehicle seems to want to stop as though you had put the brakes on--the vehicle simply hates tight turns.
Answer 1: oxygen and carbon in the air :-). Answer 2: Depends on what type of corrosion you are referring to. Rust and corrosion are typically used interchangeably. Rust is one type of corrosion.Corrosion is essentially the disintegration of a engineered material. Rust is a chemical reaction, but there are other chemical reactions that cause corrosion of steel (typically acids).Other types of corrosion include fretting, erosion, cavitation, and galvanic reactions. There are many methods to prevent corrosion.nswer 1: oxygen and carbon in the air :-). Answer 2: Depends on what type of corrosion you are referring to. Rust and corrosion are typically used interchangeably. Rust is one type of corrosion.
Iron and steel rust when they come into contact with water and oxygen: this is a form of corrosion. Both water and oxygen are needed for rusting to occur. Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust.Here is the word equation for the reaction: iron + water + oxygen â hydrated iron(III) oxide. In the experiment below, the nail does not rust when air-containing oxygen-or water is not present:ron and steel rust when they come into contact with water and oxygen: this is a form of corrosion. Both water and oxygen are needed for rusting to occur. Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust.