2500 02 006 Piston & Liner Shim compatible with heavy-duty engines
2500 02 006
Summary
Precision-engineered 0.30 mm thickness shim for cylinder liner adjustment. Features an outside diameter of 166.30 mm and an inside diameter of 160.30 mm, designed to ensure correct liner protrusion in heavy-duty diesel engines.
| EAN Code | 8699031004211 |
|---|
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Description
What does a piston & liner shim do?
This piston and liner shim is a decisive component used to bring liner protrusion in heavy-duty diesel engines into the required target range. By being fitted onto the seating surface of the cylinder liner, it ensures that the cylinder head gasket receives a balanced clamping load, which is essential for preventing gas leaks and repeat gasket failures during engine operation.Engine compatibility and fitment
These components are vital during engine overhauls in heavy commercial vehicles, including trucks and buses. They are designed to work within complex combustion chambers where precise measurements are required to maintain engine reliability. The shim must be selected based on accurate protrusion measurements taken from the block surface.Installation and maintenance guidance
For proper installation, ensure all surfaces are thoroughly cleaned of gasket residue or scale to avoid false protrusion readings. It is recommended to use a single shim of the correct thickness rather than stacking multiple thin pieces. Always follow the manufacturer's specified tightening sequence and torque values when reassembling the cylinder head.Selection and troubleshooting
Consult your authorized distributor to ensure the correct thickness grade for your specific engine requirements.Technical Specifications
| Outside Diameter (D) | 166,30 mm |
|---|---|
| Inside Diameter (d) | 160,30 mm |
| Thickness (s) | 0,30 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, ensuring the cylinder head gasket is clamped correctly to prevent combustion leaks.
Why is precise measurement important when fitting these shims?
Incorrect protrusion due to improper shim thickness can lead to uneven clamping pressure, causing premature head gasket failure.
Can I stack multiple thin shims together?
It is best practice to use a single shim of the correct thickness rather than stacking multiple pieces to maintain structural integrity.
How should I prepare the surfaces before installation?
The block shoulder must be completely free of corrosion, scale, or old gasket residue to ensure an accurate measurement.