FS Engine Cam Shaft FSa-155 Compatible with FS Series - OS42562000 by O.S. Engine  [OS42562000]

O.S. ENGINES CAM SHAFT FSa-155
Price:
£20.34
Brand:
O.S. Engine
Model:
OS42562000
GTIN:
4531028148031
Condition:
Brand New
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Overview of the FS cam shaft

The FSa-155 cam shaft is a replacement part for FS series engines from O.S. Engine, performing the essential role of controlling valve timing in nitro RC engine units. It is supplied for use during maintenance, rebuilds, or tuning operations where timing accuracy is important.

Fitting is typically done by removing the engine head and timing assembly to access the cam shaft journal, aligning timing marks, and checking valve timing with measured run-in procedures; use proper tools and care to avoid disturbing adjacent components.

When used for tuning, the cam shaft influences valve timing curves that interact with carburetor settings and needle adjustments; after installation of the OS42562000 cam shaft, monitor running behaviour and temperature while making small tuning changes to achieve the desired engine character.

Specifications

  • Item: Cam shaft FSa-155
  • Model Number: OS42562000
  • Brand: O.S. Engine
  • Compatibility: FS engine series

Install this cam shaft when restoring correct valve timing during rebuilds or replacing worn timing components, and adhere to standard FS engine service procedures for optimal results.

Which FS models accept the FSa-155 cam shaft?

The part is listed for FS series engines; check your engine's parts list and confirm the OS42562000 reference to ensure the FSa-155 matches your specific FS variant before ordering.

Should I replace related timing components at the same time?

It is good practice to inspect and, where necessary, replace worn timing gears, bearings, and seals when fitting the cam shaft to ensure a reliable overall timing system.

How precise must timing marks be during setup?

Align timing marks accurately to service specifications and perform measured run-in procedures; small misalignments can significantly affect running characteristics and may require retuning.

What inspection checks are recommended post-installation?

After initial runs, recheck valve timing, fastener torque, and look for unusual noises or temperature rises; address any anomalies promptly to prevent damage.

Does replacing the cam shaft affect maintenance intervals?

If a worn cam shaft caused performance loss, fitting a new FSa-155 can restore normal operation but continue to follow recommended FS maintenance intervals to monitor future wear.

Any tips for sourcing the correct part number?

Confirm the OS42562000 model number and FSa-155 designation against your engine documentation or parts diagrams to avoid ordering incorrect components.

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