2500 02 008 Liner Shim 0.50 mm for Engines

This precision-engineered component plays a critical role in the cylinder assembly of heavy-duty diesel engines by setting the correct liner protrusion. By filling the gap between the cylinder liner and the block seating surface, it ensures that the head gasket receives the exact clamping load required to prevent gas leaks and repeated gasket failures.

This specific shim features an outside diameter (D) of 166.30 mm and an inside diameter (d) of 160.30 mm, with a thickness (s) of 0.50 mm. Such precise dimensions are essential for maintaining the required protrusion levels in heavy commercial vehicle engines.

For a successful installation, technicians should ensure all seating surfaces are thoroughly cleaned of residue or corrosion to avoid false readings. It is recommended to use a single shim of the correct thickness rather than stacking multiple thin pieces, and to measure each cylinder individually to account for block wear variations.

Proper maintenance includes inspecting shims for any signs of deformation before fitting and ensuring that liner seals are renewed if the liner has been removed from the block.