Description
Overview:
The Villiers C12/F12 Governor Spring Adjuster (Manufacturer Part Number E4869) is a genuine metal adjustment component for classic Villiers engines. It allows precise setting of governor spring tension, helping to keep engine speed steady under changing loads. Made from durable metal, it is suitable for workshop servicing and long-term restoration of vintage equipment powered by Villiers engines such as the C12 and F12. As unused old stock, it may show light tarnish or storage marks, but remains fully serviceable. This adjuster is a simple, dependable way to restore smooth governor operation, reduce hunting, and maintain consistent performance on period machinery used in horticulture, light construction, and general small-plant applications.
Key Features:
- Genuine Villiers part for assured compatibility and reliability (MPN E4869)
- Designed to fine-tune governor spring tension for stable engine speed
- Durable metal construction for longevity in workshop and field use
- Fine, incremental adjustment allows accurate governed speed setting
- Helps address speed hunting or overspeed due to mis-set or tired springs
- Unused new old stock; cosmetic ageing does not affect function
- Straightforward to fit with common hand tools; no modification required
- Suitable for both full rebuilds and routine maintenance
- Compatible with a range of Villiers C‐series, F‐series and MK‐series engines
- Supplied as a single adjuster for one engine position
Typical Applications:
Used during restoration or service of the governor linkage on older Villiers stationary engines found on mowers, rotavators, small generators, pumps, cement mixers, and compact site plant. Ideal after carburettor work or spring replacement to set final governed speed accurately and maintain reliable performance on vintage machinery.
Also known as:
Governor spring adjuster, governor adjuster screw, spring tension adjuster, governor linkage adjuster, speed control adjuster, regulating screw, throttle governor spring screw, engine governor tuning screw.
Fits Models:
C12, C25, F12, F15, MK10, MK12, MK15, MK25
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