The oil filter must not be tightened with any tool. Either use your hands directly or use professional tools. But in reality, the young worker will tighten it with his hands, and then tighten it tightly with tools. In this way, everything is wrong! Delphi Express Repair Chain professional maintenance workers said: The spin-on oil filter (with iron shell) must not be tightened with tools casually, let alone tightened tightly!
The reasons are as follows:
1. Don't tighten it too much
The sealing ring will easily fold due to the tight installation of the oil filter. There will be a gap between the sealing ring and the engine base at the folded place, causing oil leakage.
2. Don't use tools casually
During the installation process, the metal of the tool should be prevented from squeezing into the iron shell of the oil filter, and the iron sheet will become thinner easily. After the iron sheet becomes thin, it is easy to burst in the operation of high-temperature and high-pressure oil, which is very dangerous.
3. There are two ways to tighten the oil filter: 1. Directly use your hands; 2. Professional set tools
In actual work, there are not many vehicles where the oil filter can be installed by hand, and all of them are used with set tools.
4. Use standard installation actions:
1. Check if the oil filter has any bumps.
2. Refresh the oil on the seal.
3. Use your hands to rotate the oil filter until the oil filter seal contacts the engine base (that is, when you start to tighten it).
4. Rotate it another 3/4 turn (mark it with a line).