Selta Taiwan 2pc Valve Lapper Set Hand Lapping/Grinding Duel (19x22 & 22x32mm) Neoprene Suction Cup

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We, Mighty 8 Stores, are the sole agent of Selta in Australia!

Selta brand, original from Taiwan, professional tools.

For hand grinding flat head, unslotted vales.

Synthetic neoprene rubber vacuum cups are resistant to oil, grease, gasoline and are replaceable.

This valve lapping kit comes with two lapping tools. Each tool has two different size suction cups to accommodate different size valve heads. The size are:

smaller one: 19x22mm
bigger one: 22x32mm

The seal between the valve and valve seat is crucial. If the valve is closed and the seal is not tight you will lose compression, thus losing power. This is a great procedure to use on all types of engines. When rebuilding an engine, lapping the valves can restore their seal to the valve seat. The purpose of lapping is to slightly grind off some valve seat material until the valve and the seat make an air-tight fit.

Using Instructions FYI

Begin by removing the cylinder head and valves;
Spin the valve lapper tool handle between the palms of your hands until the two surfaces are smooth. Clean all of the compound off of the valve and valve seat. Repeat this process with fine grit compound. Spin the lapping tool until the gritty sound has gone away and the desired finish has been achieved;
When finished, you will have a shiny, smooth surface on both the valve and valve seat. After lapping both valves, you must thoroughly clean the lapping compound off of all the surfaces.