How do the engine harness aging?

Basic knowledge of engine harness

Common internal engine harness generally consists of multi-strand copper cord, the appearance of plastic wrap. The temperature of the cabin is very high during the day, and the plastic of the harness will release the chemical substances such as plasticizers. The material will react with the copper wire inside the wiring harness, which will lead to the decrease of the plastic strength and the rise of the copper wire resistance. The risk of short circuit. Rubber hoses in the cabin are unsaturated polymer hydrocarbons, rubber aging is also prone to oxidation caused by vehicle spontaneous combustion.

Engine harness protection agent

Engine harness protection agent Many people have used, the market price of these products is very cheap, a bottle also dozens of dollars. The working principle of such products is in the engine wire / battery connector, wiring harness surface to form a protective film, isolated moisture to avoid oxidation.

As the spray itself is resistant to high pressure, insulation characteristics, it can also delay the nacelle rubber, plastic pipe aging and cracking, to prevent the wiring harness due to aging caused by leakage. Also spray this layer of protective film is not easy to stick ash, easy to wipe can be a long time to keep the cabin clean.

Harness protection agent DIY operation

Harness protection agent does not use too much technical content, hands-on ability of users can DIY operation, most of the 4S shop and beauty care shop can also complete the project construction. DIY and 4S shop construction is the biggest difference between the tools, high pressure air guns and guns are DIY do not have.

Next for everyone to show the spraying harness protection agent of the steps and precautions, conditional users can also refer to this DIY operation.

Step 1: Clean the engine compartment

First, remove the sludge generated by the engine operation and the oil sludge caused by the evaporation of the oil. It is recommended that you choose a well-ventilated place construction and protection for the vehicle, the most important do not forget to wear their own masks and gloves. After the full cleaning, then use the water for the engine rinse.

The second step: low pressure water rinse dry

It should be noted that the current design of the engine compartment has been the beginning of the wiring harness has a simple waterproof treatment, small equipment, low pressure water bottles or mineral water bottles will not damage the line of water resistance. Of course, so cleaning also need to avoid wiring harness, sensor joints and other sensitive areas.

For those who use a long life and can not regularly maintain the harness of the vehicle, the low-pressure water rinse should be careful, the most secure way to the repair shop or use a professional dust gun cleaning.

The third step: spray wire harness protection agent dry

So how long does it use a harness protector? When do you need to replace the harness?

Affected by the local climate, wind and rain and the actual situation of personal vehicles and other factors, in principle, there is no strict cycle restrictions, usually recommended that you wash the engine once a year to a year can be cleaned at the same time the way for the engine harness and rubber pipes Conservation. For the new car can be selected according to the car environment after 2 years for the first conservation. In accordance with the experience of regular maintenance will extend the engine nacelle harness at least 5 years of service life.