Asked by: Tiny Gozzi
asked in category: General Last Updated: 28th April, 2020

What is Valve lapping compound?

Valve lapping compound is an abrasive. As you rotate the valve and apply pressure towards the seat, you are wearing both valve contact face and valve seat at the same time.

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Similarly, you may ask, what does lapping valves mean?

Valve Lapping is basically sanding down the surface of the Valves (which allow fuel and air to flow in, and exhaust to flow out) and the Head (Holds the Camshafts and valves) where they make contact with each other.

Secondly, how do you apply lapping compound?

  1. Apply the lapping compound to the surface that is to be ground.
  2. Place the polishing surface on top of the lapping compound, pressing down to even out the lapping compound and flow excess compound out of between the item to be polished and the polishing surface.

Then, what is lapping compound?

Lapping paste is a mixture of hard abrasive particles in a suitable base. The base can be oil-based like grease or water soluble lubricant. The hard particles used are carborandum, aluminum oxide, silica or silicon carbide, glass, boron carbide, etc. The lapping paste are graded from extra coarse to extra fine.

What is the difference between lapping and polishing?

The main difference between the lapping and polishing processes is obvious in glass lens manufacturing. Lapping produces a rough surface processed with coarse abrasives and a hard plate tool, while polishing produces a mirror-like surface processed with fine particle abrasives and soft pads.

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