FS-95V Valve Spring Seat OS40960300 Upgrade for RC Engine Servicing by O.S. Engine  [OS40960300]

O.S. ENGINES VALVE SPRING SEAT FS-95V
Price:
AUD$5.30
Brand:
O.S. Engine
Model:
OS40960300
GTIN:
4531028148536
Condition:
Brand New
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What the valve spring seat does

This O.S. Engine OS40960300 valve spring seat is supplied as a replacement for the FS-95V engine and is aimed at RC enthusiasts performing rebuilds or tuning sessions. The description stresses fit and functional role rather than claiming performance gains.

Compatibility is determined by the FS-95V code in the product title; confirm OS40960300 against your engine reference or service manual before fitting. The seat secures the valve spring to the cylinder head and is a key contact point in the valve train during setup and tuning operations.

When replacing the seat, check valve keepers, springs, and guides for wear and correct seating. Accurate contact surfaces and correct installation help preserve valve timing and reduce the risk of binding that can affect tuning consistency on the track.

Will fitting a new seat change valve timing?

A correctly installed OS40960300 seat itself does not alter timing, but improper seating or worn mating parts can affect valve geometry. Ensure clean surfaces and correct assembly to maintain timing settings.

Any special steps when fitting during a tuning session?

During tuning, verify valve train clearances after installation and re-check compression and idle as required. Small seating errors can influence tuning behavior, so double-check alignment and spring seating.

Should I re-evaluate other parts after installing the seat?

Yes. Inspect springs, keepers, and guides and replace any items that could compromise performance. Maintaining the entire valve train helps keep tuning predictable and reliable.

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