What should be done to correct insufficient liner protrusion?
If the new cylinder liner measures less than the engine manufacturer’s specification, you must correct the protrusion height with cylinder liner shims or with an oversized flange height cylinder liner.
What causes liner protrusion?
Not having the proper seal between the head and block can result in catastrophic engine failure. The most common problems from incorrect liner protrusion are leaky head gaskets, damaged pistons, pitted cylinder head decks and cracked liner flanges.
How important is liner protrusion?
The main purpose of cylinder liner or sleeve protrusion is to give you the proper amount of “crush” on your cylinder head gasket. This ensures that once torqued, your cylinder head crushes the gasket evenly and to the correct specification.
What is the purpose of liner protrusion?
What is the purpose of liner protrusion? Liner protrusion is the distance the cylinder liner sticks above the deck surface of the block. The main purpose of cylinder liner or sleeve protrusion is to give you the proper amount of “crush” on your cylinder head gasket.
What is a dropped liner?
A drop-in liner is fabricated from lining material and then shipped to the installation site with the intent of keeping a surface from getting wet or to keep the surfaces moisture-free. A lining is a layer of material on the inner surface of something, usually for protection or decorative appearance.
What is wet cylinder liner?
Wet type cylinder liners are the liner type in direct contact with the engine coolant. The wet liner is usually heavy and thick-walled. They are made of high-quality, alloy cast iron material, similar to the centrifuged casting method, such as dry type liners. They are in direct contact with the engine coolant.
What is the purpose of cylinder liner protrusion?
What is the purpose of liner protrusion? Liner protrusion is the distance the cylinder liner sticks above the deck surface of the block. The main purpose of cylinder liner or sleeve protrusion is to give you the proper amount of “crush” on your cylinder head gasket.
How does the liner protrusion work on a Mack E-7?
Three things to consider when looking at the cylinder liner sleeve installation process for the Mack E-7 reman: Liner protrusion is the measurement the cylinder liner extends above the surface of the engine block. It is supposed to stick above the surface of the block and act essentially as a cushion on the cylinder head gasket.
What are the problems with incorrect liner protrusion?
The most common problems from incorrect liner protrusion are leaky head gaskets, damaged pistons, pitted cylinder head decks and cracked liner flanges. Take a look at the photos, under magnification, of correct and incorrect liner protrusion.
What happens if cylinder liner is not installed?
Not having the proper seal between the head and block can result in catastrophic engine failure. The most common problems from incorrect liner protrusion are leaky head gaskets, damaged pistons, pitted cylinder head decks and cracked liner flanges.