2500 02 007 0.40 mm Piston & Liner Shim
2500 02 007
Summary
Precision 0.40 mm thickness Piston & Liner Shim designed for heavy-duty engine overhauls. Featuring a 166.30 mm outside diameter and a 160.30 mm inside diameter, this component ensures correct liner protrusion and optimal head gasket clamping pressure in heavy commercial vehicle engines.
| EAN Code | 8699031004228 |
|---|
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Description
What does a piston and liner shim do?
This piston and liner shim is a critical adjustment component used to set the liner protrusion within the precise range required by the engine block. By providing a controlled thickness between the cylinder liner and the seating surface, it ensures the cylinder head gasket experiences balanced clamping pressure, which is vital for maintaining a high-pressure seal in heavy-duty diesel engines.Technical specifications and fitment
This specific shim is designed for use in heavy commercial vehicle engines where precise liner positioning is mandatory during an overhaul or liner replacement. The component features an outside diameter of 166.30 mm and an inside diameter of 160.30 mm, with a thickness of 0.40 mm to meet exact technical requirements.Installation and maintenance guidance
During installation, technicians must ensure that the seating surface is clean and free of debris to allow for accurate protrusion measurement. Selecting the correct shim thickness is decisive for preventing gas leaks and preventing premature gasket failure under high combustion pressures.Ensuring correct liner protrusion
For reliable engine performance, always verify the measured protrusion against the manufacturer's service manual to confirm this shim provides the necessary height adjustment.Technical Specifications
| Outside Diameter (D) | 166,30 mm |
|---|---|
| Inside Diameter (d) | 160,30 mm |
| Thickness (s) | 0,40 mm |
| Number of Packages | 10 |
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FAQ
What is the purpose of a piston and liner shim?
A shim is used to adjust the liner protrusion height, ensuring the cylinder head gasket receives the correct clamping force for a reliable seal.
How is the thickness of this shim determined?
The 0.40 mm thickness is selected based on measurements taken during engine overhaul to compensate for liner seating variations.
What are the dimensions of this component?
This specific shim features an outside diameter of 166.30 mm, an inside diameter of 160.30 mm, and a thickness of 0.40 mm.
Why is precise liner protrusion important?
Correct protrusion prevents gas leakage and ensures that the head gasket can withstand high combustion pressures without failing.