MS
Refit all pipes and wires, and the air cleaner. Start the engine and check for oil leaks.
8. Sealing correctly
Table 2 b): Common types of oil seals (without spring)


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Black spark plugs are one of the most important components in an internal combustion engine. They play a crucial role in igniting the fuel-air mixture that powers the engine, allowing the vehicle to start and run smoothly.
The range of uses of peroxydically cross-linked EPDM includes in hot water and steam seals. EPDM is also very resistant to ageing and ozone. Compared with the usual types of synthesis natural rubber it has good resistance to cold temperatures. EPDM is not resistant to aliphatic or aromatic hydrocarbons or mineral oil products. Resistance to chemicals, and also to oxidising agents, is very good. Temperature range from -50 °C to +140 °C depending on type.
Remove the key and keep it safe until ready to refit the pulley.
When the total eccentricity is excessive, the sealing edge of the seal lip cannot accommodate shaft motions and leakage may occur.
Total eccentricity is the sum of shaft runout and the housing-bore eccentricity.
Total eccentricity, shaft runout and housing-bore eccentricity are generally expressed in TIR (Total Indicator Reading).
When selecting the oil seal that is right for your machine, it is important that the oil seal be appropriate for the requirements of the usage environment and that it be easily acquired for replacement.
In this month's column, How to select the right oil seal, we conveyed the following points:
1) Oil seal shape and material should be selected based on the housing, substance to be sealed, pressure, rotational speed, total eccentricity, and air-side conditions.
2) Oil seals can show good sealing performance in combination with properly designed shafts and housings.
3) Oil seal performance is affected by not only the type and material of the selected oil seal, but also a variety of other factors, such as operating conditions, total eccentricity, rotational speed, the substance to be sealed, and lubrication conditions. For this reason, diligent care is required in oil seal selection.
Standard springs are made of carbon steel. We use stainless-steel springs for our GR and GRST oil seals made from FKM rubber. In some rare cases, an O-ring is even used as a spring element. Standard PTFE lip seals are not fitted with springs.
Nitrile (also known as Buna N)
Look at the end of the sump. If you cannot see clearly whether you need to remove the engine, consult a car service manual or dealer.

You have to consider the speed at which the shaft will be moving, the housing bore, and the runout. These are important to make sure that you choose an oil seal that will not be exposed to unconducive abrasions.
Automotive gaskets encompass a wide range of sealing components used in vehicles, including exhaust gaskets, intake manifold gaskets, and more. These gaskets are available in various materials, such as rubber, silicone, and metal, each offering specific properties suited for different applications. The selection of high-quality automotive gaskets is crucial for ensuring reliable sealing solutions that contribute to the overall performance and safety of the vehicle.