Valve Lappers - Grinders

Valve Lappers - Grinders

Valve lapping is a process used to remove small amounts of material from the valve face and seat to create a smooth, even surface. This is done in order to improve the sealing between the valve and the seat, which can help to improve engine performance and efficiency.

Valve lapping grinders are used to perform this process. They are typically powered by either an electric motor or a pneumatic motor, and they have a rotating abrasive wheel that is used to grind the valve face and seat.

The type of valve lapping grinder that is used will depend on the size of the valves and the type of engine. For smaller valves, a hand-held valve lapping grinder may be used. For larger valves, a bench-mounted valve lapper may be used.

Types of Valve Lappers

  • Hand-held valve lapping grinders
  • Bench-mounted valve lapper

Benefits of Valve Lapping

  • Improved sealing between the valve and the seat
  • Improved engine performance and efficiency
  • Reduced emissions
  • Longer engine life

How to Use a Valve Lapper

  1. Clean the valve face and seat thoroughly.
  2. Apply a small amount of valve lapping compound to the valve face.
  3. Insert the valve into the valve lapper and start the grinder.
  4. Move the valve back and forth across the abrasive wheel until the valve face and seat are smooth.
  5. Repeat steps 2-4 until the desired results are achieved.

Tips for Valve Lapping

  • Use a light touch when lapping the valves.
  • Apply only a small amount of valve lapping compound.
  • Lap the valves until they are smooth, but not shiny.
  • Be careful not to overheat the valves.
  • Clean the valves thoroughly after lapping.

Valve Lappers - Grinders are an essential tool for any automotive mechanic. They are used to improve the sealing between the valve and the seat, which can help to improve engine performance and efficiency.

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