ARP Tapered Piston Ring Compressor - 84.0 mm Diameter
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eBayARP Tapered T6 Billet Alloy Piston Metric Ring Compressor - 84.0 mm Dia
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ARP Tapered T6 Billet Alloy Piston Metric Ring Compressor - 84.0 mm DiameterFree delivery in 1–3 days£83.36Visit shop →
Product Information
Full details
This ARP Tapered Piston Ring Compressor, specifically the 84.0 mm diameter model, is designed for engine builders, from beginners to professionals, who need a reliable tool for piston installation. Its primary benefit is ensuring a precise and safe insertion of pistons into cylinders by effectively compressing piston rings. A potential caveat is the need to select the exact diameter for optimal fitment. The compressor is manufactured from 6061-T6 billet aluminum with a 'true radius' design, anodized for durability, and available in various metric and imperial sizes.
All features
| Model Part Number | 901-8400 |
|---|---|
| Brand | ARP |
Extended Product Information
FAQs
What is the main purpose of a tapered piston ring compressor?
Its purpose is to safely and effectively compress the piston rings into their grooves, allowing the piston assembly to be smoothly inserted into the engine cylinder bore without damaging the rings or the cylinder wall.
How do I choose the correct size piston ring compressor?
You must select the compressor diameter that exactly matches your cylinder bore diameter. For example, use the 84.0 mm compressor for an 84.0 mm cylinder bore.
What material is the ARP Tapered Piston Ring Compressor made from?
It is manufactured from 6061-T6 billet aluminum for strength and durability.
Is this compressor suitable for all types of piston rings?
It is designed for most common piston ring installations. However, always ensure the rings are properly seated in their grooves and compatible with the compressor's tapered design.
What does the anodized finish do?
The anodized finish provides a durable, corrosion-resistant surface that enhances the longevity of the tool and offers a professional appearance.
Can a beginner engine builder use this tool?
Yes, the design is user-friendly and intended to make piston installation easier and safer for builders of all experience levels.
How should I clean and maintain the compressor?
Clean with a soft cloth after use to remove debris and oil. Store in a dry place. Avoid abrasive cleaners.
Troubleshooting
Piston is difficult to insert into the cylinder.
Ensure the correct compressor diameter is being used. Verify that the piston rings are fully seated in their grooves and that the compressor is aligned correctly on the piston. Apply consistent, even pressure. Check that the cylinder bore and piston skirts are adequately lubricated.
Piston rings are not compressing sufficiently.
Confirm the compressor diameter is correct and that the tapered edge is properly engaging the top piston ring. Ensure no debris is obstructing the rings or compressor. Apply firm, steady pressure.
Damage to piston rings or cylinder walls during installation.
This usually indicates an incorrect compressor size, improper alignment, or excessive force. Always use the exact size compressor for the bore and ensure smooth, controlled pressure. Re-inspect piston and rings for damage if this occurs.
Pros and Cons
Pros
- Ensures accurate and precise piston installation.
- Durable construction with anodized finish for longevity.
- Tapered design simplifies piston ring compression.
- Wide availability of sizes for various engine applications.
- Suitable for both novice and experienced engine builders.
Cons
- Requires precise diameter selection for optimal performance.
- May not be suitable for all specialized piston/ring combinations without careful consideration.
- Requires manual force for compression.
Setup, Compatibility & Care
Setup:
- Ensure the piston rings are correctly installed in their respective grooves on the piston. Apply a small amount of engine oil to the piston skirts and the cylinder bore.
- Select the ARP Tapered Piston Ring Compressor that precisely matches the cylinder bore diameter (e.g., the 84.0 mm model for an 84.0 mm bore).
- Place the compressor over the piston, aligning it with the piston crown. The tapered edge should be contacting the top ring.
Compatibility:
This 84.0 mm diameter compressor is designed for cylinders with a bore size of exactly 84.0 mm. It is compatible with a wide range of piston and piston ring combinations typically found in performance and racing engines, provided the rings sit flush within their grooves and the overall piston diameter fits within the compressor's internal diameter without interference.
Care:
- After each use, clean the compressor with a soft cloth to remove any oil or debris.
- Store in a clean, dry environment to prevent corrosion or damage.
- Avoid using abrasive cleaners or tools that could scratch the anodized finish.
- Periodically inspect the tapered edge for any signs of damage or wear.