A piston ring compressor is a tool used to compress piston rings, allowing them to be easily installed onto a piston for engine assembly. The dimensions provided, 165*175, likely refer to the size of the compressor, with 165mm being the diameter and 175mm being the height. Here’s an overview of the features and uses of a piston ring compressor:

Features of a Piston Ring Compressor:

Cylindrical Design: The compressor typically has a cylindrical shape with an open-ended design, allowing it to slide over the piston and compress the rings evenly around its circumference.
Split Construction: Many piston ring compressors have a split construction, allowing them to expand or contract to accommodate pistons of different sizes. This split design also makes it easier to remove the compressor from the piston after the rings are installed.
Adjustable Band: Some compressors feature an adjustable band or clamp mechanism that allows for precise control over the compression of the piston rings. This ensures that the rings are compressed evenly and securely onto the piston.
Durable Material: Piston ring compressors are typically made from durable materials such as steel or aluminum to withstand the forces involved in compressing piston rings without bending or deforming.
Smooth Interior Surface: The interior surface of the compressor is often smooth and polished to prevent damage to the piston rings during installation. This helps ensure that the rings slide smoothly over the piston without catching or binding.

Uses of a Piston Ring Compressor:

Engine Assembly: Piston ring compressors are essential tools for engine assembly, allowing mechanics and technicians to install piston rings onto pistons quickly and efficiently.
Automotive Repair: They are commonly used in automotive repair shops and engine rebuilding facilities for installing piston rings during engine overhaul or repair procedures.
Small Engine Repair: Piston ring compressors are also used in the repair and maintenance of small engines, such as those found in motorcycles, ATVs, lawnmowers, and chainsaws.
Performance Engine Building: Enthusiasts and professional engine builders use piston ring compressors when assembling high-performance or racing engines to ensure precise ring installation and optimal engine performance.

How to Use a Piston Ring Compressor:

Select the Correct Size: Choose a piston ring compressor that matches the diameter of the piston you are working with. Ensure that the compressor is appropriately sized to fit over the piston and compress the rings.
Position the Rings: Place the piston rings onto the piston grooves, ensuring that they are properly aligned and seated in the correct position.
Slide on the Compressor: Slide the piston ring compressor over the piston and rings, ensuring that it covers the rings completely and is positioned evenly around the circumference of the piston.
Adjust Compression: If the compressor has an adjustable band or clamp mechanism, adjust it to apply gentle pressure and compress the rings evenly around the piston.
Install the Piston: With the rings compressed, carefully install the piston into the engine block or cylinder bore, taking care not to disturb the rings as you lower the piston into place.
Remove the Compressor: Once the piston is installed, carefully remove the compressor from the piston by separating the split halves or loosening the adjustable band.
Check Ring Alignment: After removing the compressor, visually inspect the piston rings to ensure that they are properly aligned and seated in the grooves.
Proceed with Assembly: Continue with the engine assembly process, following manufacturer guidelines for piston and ring installation, cylinder lubrication, and other relevant procedures.

Conclusion:

A piston ring compressor is a valuable tool for engine assembly and repair, allowing for the efficient installation of piston rings onto pistons without causing damage. With its durable construction, adjustable features, and smooth interior surface, this tool ensures precise ring compression and secure installation, contributing to the overall performance and reliability of the engine. Whether in automotive repair, small engine maintenance, or performance engine building, a piston ring compressor is an essential tool for mechanics, technicians, and enthusiasts alike.