Description
Overview:
The Insulating Bush (Amal Type 379) is a genuine Villiers component for Amal 379 carburettors, used on classic small-capacity engines such as the Villiers F.07 and BSA 65CC. Made from a heat- and fuel-resistant insulating composite (phenolic), it acts as a thermal barrier between the carburettor and the engine, helping stabilise fuel temperature and running. It also provides accurate spacing and support at the carburettor mounting, maintaining alignment and reducing vibration transfer. Supplied as unused old stock vintage parts, some units may show minor cosmetic ageing with no effect on performance. OEM reference is 30274 for easy identification and replacement. This bush is a practical, authentic solution for maintaining reliable operation on period engines fitted with Amal 379 carburettors.
Key Features:
- Genuine Villiers part (OEM 30274) for assured compatibility and fit
- Designed specifically for Amal 379 carburettors on BSA 65CC and Villiers applications
- Heat insulation helps reduce heat soak and fuel vapour lock, aiding hot starting and consistent idle
- Non-conductive, fuel-resistant phenolic composite for long service life
- Maintains correct carburettor spacing and alignment on the intake manifold
- Direct replacement; straightforward to fit with standard hand tools
- Stable under engine temperatures and vibration for reliable sealing and performance
- Suitable for restorations where originality and correct specification matter
- Supplied as unused old stock; minor shelf tarnish possible without affecting function
Typical Applications:
Used between the Amal 379 carburettor and the inlet manifold on vintage engines to limit heat transfer, improve running after prolonged idling, and reduce hot soak issues. Ideal for routine servicing, full rebuilds, and sympathetic restorations of classic small motorcycles and stationary or light industrial engines that use Amal 379 carburettors.
Also known as:
Amal 379 spacer, carburettor insulator sleeve, carb spacer bush, manifold insulator, heat isolator bush, carburettor mounting bush, phenolic carb spacer ring, carb insulator washer (Amal Type 379).
Fits Models:
BSA 65CC, BSA65CC
Alternate Part Numbers:
30274
Product Specifications
| L&S Part No. | 30274 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | 30274 |
| Unit of Sale | 1 |
| Applications | BSA 65CC, BSA65CC |
| Machine Type | Engines |
| Fits Brands | Villiers |
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