Description
Overview:
Valve Tappet Shims for BSA 320cc and 420cc Engines are essential components used to ensure the correct clearance in the valve system. Each shim measures .014 inches in thickness, providing precise adjustment to optimise engine performance and valve operation. Made by BSA, these Genuine OEM parts with part number 86 2142 are sourced from unused old stock. They may exhibit cosmetic signs of age such as tarnishing or dirt due to prolonged storage. Despite being vintage, they maintain their functionality for fitting BSA engines.
Key Features:
- Genuine BSA OEM part
- Thickness: .014 inches (0.355 mm)
- Suitable for precise valve clearance adjustment
- Engineered for BSA 320cc and 420cc engines
- Unused old stock vintage parts
- May show signs of age such as tarnishing or general dirt from storage
Typical Applications:
Used in BSA 320cc and 420cc engines, valve tappet shims play a critical role in adjusting valve clearance to ensure optimal engine performance. They are vital in maintaining efficient engine operation and longevity.
Also known as:
Valve clearance shims, tappet adjustment shims, engine shims, BSA 86 2142 shims.
Product Specifications
| L&S Part No. | 86 2142 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | BSA |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Models | BSA 320CC |


