The use of chemical anchors also offers remarkable precision and control during installation. Unlike mechanical anchors that require precise drilling depths, chemical anchors can be installed at varying depths, providing flexibility to accommodate different structural requirements. Their installation process is relatively noiseless and cleaner, reducing potential disturbance in sensitive areas Their installation process is relatively noiseless and cleaner, reducing potential disturbance in sensitive areas
Raise the jack to take the weight of the engine off its mountings. Make sure you do not strain the radiator hoses or other connections. If in doubt, drain the radiator and disconnect the hoses (See How to remove a car radiator ).
Rubber type
To ensure correct fit and proper protection against contaminants, the inside diameter of an oil seal must be slightly smaller than the shaft diameter.
PTFE, which is used in the well-known brand Teflon®, is less commonly used, but it is the preferred material for specific rotating seals in the chemical, food and pharmaceutical industries. This material is notable for having a very low frictional resistance and the best chemical resistance. It can also withstand a very wide range of temperatures in these types of seals; -80 ˚C to 200 ˚C. The shafts on which oil seals with PTFE lips are used require a harder and finer finish. Something like an axle sleeve can also be used to meet this requirement.