Description
Overview:
The Valve Spring Top Collar is a genuine Villiers component for the BSA 65cc engine, identified by OEM No. 87 39. Made from durable metal, it locates and supports the top of the valve spring, helping to maintain the correct spring tension for smooth, reliable valve operation. Correct tension reduces the risk of valve bounce and keeps timing stable under heat and vibration. This part is suitable for servicing, rebuilding, or restoring Villiers BSA 65cc engines found in vintage machinery. As unused old stock, the collar may show minor tarnishing from storage, but this does not affect function. Choosing the original Villiers specification helps ensure a precise fit and consistent performance in classic engines where accuracy and durability matter.
Key Features:
- Genuine Villiers part for assured compatibility and fit (OEM No. 87 39).
- Robust metal construction to withstand heat, load, and engine vibration.
- Helps maintain correct valve spring tension for stable valve operation.
- Direct replacement for worn or damaged collars in BSA 65cc engines.
- Suitable for maintenance, rebuilds, and restoration of vintage equipment.
- Unused old stock; cosmetic tarnish may be present but performance is unaffected.
- Designed to work with original valve train components for straightforward fitting.
- Supports consistent timing and reliable running when installed to spec.
Typical Applications:
Used during cylinder head overhauls, routine maintenance, or full restorations of Villiers BSA 65cc engines. Ideal when a top collar is missing, worn, or distorted, or when renewing valve gear as a set. Suitable for home workshops, trade garages, and restoration specialists aiming to retain original specification and dependable operation in classic engines used across small machinery and similar applications.
Also known as:
Valve spring retainer, valve spring cap, upper valve spring collar. These terms are commonly used for the component that locates the top of the valve spring and keeps the spring seated under load in the valve train assembly.
Fits Models:
Villiers BSA 65cc engine
Product Specifications
| L&S Part No. | 87 39 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| Unit of Sale | 1 |
| Machine Type | Engines |
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