A simple shortcut to lapping valve seats. I've never had luck with those silly suction cup sticks. This method is much more efficient!Demonstrating on a Su...

The primary purpose of valve lapping is to achieve a good, if not perfect, seat for the valves. The process will produce finer surfaces, correct minor imperfections, produce closer fits and close or tight tolerances between the engine valves and their corresponding valve seats.

Jul 13, 2015 · Instructional video on how to lap or re-seat valves in a cylinder head. Step by step, easy to follow instuctions of lapping valves in your home workshop to restore lost power. Where to buy...

Aug 15, 2011 · Valve lapping is not a substitute for machining. It is the final step of a valve job, and needs to be done with a light touch and only just enough to achieve a band of valve to seat contact area that goes all the way around the valve and seat, NOT to mate the entire surface.

Get a basic understanding of valve lapping tools and compounds in this blog post by the Goodson Techxperts. Okay, you’ve already cut or ground your valve seats to the correct angles; you’ve ground the valve face in your valve refacer.

Mar 21, 2018 · Available in Australia: http://bit.ly/2DLoEfv NZ: http://bit.ly/2IH37sf Valve lapping is an essential part of an engine rebuild, and must be performed even when installing new valves – to match...

Using a valve lapping tool, spin the valve in a back and forth circular motion while applying downward pressure onto the valve. Pull the valve up and look for a complete impression of the Prussian blue all the way around valve seat.

Nov 14, 2024 · Gathering the necessary materials, such as the valve lapping tool and grinding compound, is the first essential step to ensure a smooth valve lapping process. A preliminary inspection of the valve and its seat lays the groundwork for the subsequent steps, identifying any major imperfections early on.

The purpose of grinding valves is to have the valve and valve seat make an air-tight fit. The purpose of lapping valves is to see if that was done correctly. When done, you want to have an even band of contact area that goes all the way around the valve and seat.

Valve lapping is a fine grinding process that we apply to valve edges and valve slots. By using a fine tool, we create a very good surface between the seating surfaces. So, it is a very important process that we apply to the exhaust and intake valves.