Valve seals precisely control the amount of oil entering the valve stem system, making them critical components in maintaining your engine’s compression levels. Having a valve stem seal that works correctly within any of your applications can save you time and money by eliminating the need for lengthy engine repairs and replacements. But how to install valve stem seals, please see below.

Installation diagram

The installation procedure

1. Clean the sealing ring and assemble it into a complete set, and clean the groove，so the groove is clean without any rust.

2. Grease the inner and outer lip of the seal and the valve rod, the valve rod must be coated with grease to facilitate installation.

3. Put the lip of the seal in the direction of the pressure to the valve.

4. Press the seal into the groove evenly.

5. Install the seal completely into the groove (so that the gland can be locked).

6. Lock the gland finally.

The low friction design features of JST's high pressure valve stem seals can be incorporated into all available seal designs without any changes to existing installation equipment.

Features:

• Optional lip design feature to provide lowest friction and power loss

• Development to specific customer requirements

• Consistent oil metering

• Excellent resistance to oils/fuels and high temperatures

Benefits:

• Long term emissions control

• Long service life

• Optimum valve lubrication

• Minimum valve guide wear for maximum valve train life