Description
Overview:
The Spring Delivery Valve - Robin Part RB222 63104 08 is a small, durable metal spring used within the delivery valve assembly of Robin/Subaru small engines. Its job is to control and stabilise fluid movement in the system, helping to maintain pressure and prevent reverse flow in fuel or oil circuits. By keeping the delivery valve responsive, it supports smooth running, cleaner metering, and reliable starting. This replacement spring suits a wide range of construction and garden machinery powered by Robin/Subaru engines, including generators, pumps, plate compactors, and tillers. It is a practical service item to restore correct valve function during routine maintenance or when troubleshooting poor performance, rough running, or hard starting caused by weak or fatigued springs.
Key Features:
- Durable metal construction designed for repeated cycling under engine heat and vibration
- Helps maintain steady flow and pressure in fuel or oil delivery circuits
- Supports reliable starting, smoother running, and consistent performance
- Resists deformation and fatigue for longer service intervals
- Straightforward to fit during valve, pump, or carburettor service following the engine manual
- Precise spring rate supports correct valve seating to reduce backflow
- Suitable for many Robin/Subaru engine-powered tools used on site or in the garden
- Compact form factor for easy handling and minimal downtime during replacement
Typical Applications:
Used in the delivery side of small-engine systems on equipment such as portable generators, water pumps, plate compactors, trench rammers, tillers, lawn and garden machinery, and small chippers. Commonly replaced during scheduled servicing, carburettor or pump overhauls, or when diagnosing pressure loss, inconsistent fuel supply, or poor idle that may be linked to a weakened delivery spring.
Also known as:
Delivery valve spring, engine valve spring, pump delivery spring, check valve spring, flow control valve spring, valve return spring for delivery circuit.
Product Specifications
| L&S Part No. | RB222 63104 08 |
|---|---|
| Unit of Sale | 1 |
| Fits Brands | Robin |
| Key Features | - Durable metal construction withstands engine heat and vibration - Maintains steady flow and pressure in delivery circuits - Suitable for Robin/Subaru engine-powered tools - Resists deformation for longer service intervals - Easy to fit during valve or pump service |
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