- The Impact of 794 00055a Spark Plug on Automotive Performance
- Innovations in material science have led to the development of advanced gasket materials, enhancing their durability and sealing capabilities. These advancements, coupled with precision manufacturing techniques, have significantly reduced the likelihood of gasket failure, contributing to the overall reliability of modern engines.
- Energy savings
Rotary Wheel Of Auto Parts
Another type of seal design has the metal encased in rubber (Figure 2.11).
Maintenance and Inspection of Oil Seals
Areas of application of this rubber are suggested by its outstanding temperature resistance (-55 °C to +200 °C), although this must not be applied to hot water or steam. Although silicone rubber almost matches NBR in oil resistance, it does not match the latter's physical and mechanical properties.

oil tank gasket.
There is a British Standard laid down for the control of synthetic rubbers. BS 3574 (1989) helps to determine shelf life – for instance, Nitrile (NBR) and Polyacrylic (ACM) are Group ‘B’ rubbers and have a 7-year life, whilst Silicone (VMQ) and Fluoroelastomers (Viton®) are Group ‘C’ rubbers and have a 10-year shelf life. PTFE and Leather do not come into this category but like the others should be kept in the original packing for as long as possible away from direct light, dust, and humidity. Ozone, which can also be produced by battery-driven forklift trucks has a very bad effect on synthetic rubbers. Finally, protect the sealing lip – DO NOT hang the seals on nails, wire etc.