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When installing a 38x52x7 oil seal, it is important to ensure that the seal is properly lubricated and aligned with the shaft. This will help to minimize friction and wear, and extend the life of the seal. It is also important to regularly inspect the seal for any signs of damage or wear, and replace it if necessary to prevent oil leakage.
First disconnect the battery earth terminal , to avoid the risk of a short circuit while the fuel pipes are disconnected.
Purpose of an Oil Seal
Rotary Wheel Of Auto Parts
A typical oil seal consists of three common parts: an outer ring, the sealing element, and a spring. The exterior metal ring component provides strength and rigidity to the oil seal in the bore or recessed groove. Attached to that ring is the sealing element. This flexible interior component of the oil seal, the O-ring, prevents any fluid leaks between the shaft and housing. A spring ensures the constant pressure that deforms the O-ring, creating a reliable seal while maintaining radial force on the shaft.
Without spring Rubber O.D. wall Metal O.D. wall

2.0 tsi valve cover gasket.0% TSI engine running smoothly. Signs of a failing gasket include oil leaks around the valve cover, a burning smell coming from the engine, or a drop in oil pressure. If any of these symptoms are present, it is crucial to replace the gasket as soon as possible to prevent further damage to the engine.
Figure 4: Shaft end chamfer
Oil seals are used in a great many machines.