A Quick Lesson for How to Measure Cylinder Sleeves Protrusion

What is liner protrusion, and how do you measure it? It’s very important to measure liner protrusion or else you will suffer from an engine failure. Following, we are giving you a quick guide for how to measure and maintain accurate liner protrusion.

Measure Cylinder Sleeves Protrusion

What is Liner Protrusion?

Cylinder Sleeves protrusion is the distance of cylinder liner that sticks above deck surface of block. It gives enough crush on cylinder head gasket. This makes sure once torqued, the cylinder head crushes gasket properly.

How to Measure it?

It is crucial to measure liner proton in different locations around every cylinder. It helps to learn the spec a variation of protrusion. This suggests that measuring one cylinder in different places needs you to remain will .001-.005m rang.

This helps you to remain consists around every hole, and from one cylinder to another. If you fail to remain consistent, then head gasket crushes and breaks cylinder liner seals.

When you use o-rings, you better use dry fit liners. If you don’t have O-Rings, then you should measure the protrusion after install the block. O-rings can pop liner out of hole, therefore you have to clamp the liner in place.

Dry sleeves are thick, and it is better to measure them with a micrometer at first. Note down these measurements and subtract the values, the final value will be your protrusion. This final sum allows the liner to sit in block.

Why Measure before Installation?

You better take your measurements before installation as it will help you to use sleeve installer according to the size of cylinder, and thickness of Cylinder Sleeves.  It’s important you careful measure everything because removing a sleeve is very difficult.

For best results, you better measure the protrusion once again after installation to ensure everything is as it should be.

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