FSa-155 Cam Cover Replacement - O.S. Engine OS42501100  [OS42501100]

Function and fit of the cam cover

This cam cover is an RC-scale engine accessory listed as O.S. ENGINES CAM COVER FSa-155 and intended for use within the FS Engine parts family. It functions as the external cap for the cam area and is supplied as a like-for-like replacement for the FSa-155 code.

Role in maintenance: the cover prevents ingress of debris to the camshaft and timing region and aids retention of gasket seals during routine work. It is offered as a spare to reinstate correct external assembly and to keep straightforward engine access for tuning and maintenance tasks on FS-series RC engines.

Fitting notes: the description highlights compatibility and intended role rather than installation steps. Match the FSa-155 marking and check mounting alignment prior to reassembly. Use correct fasteners and standard RC workshop practice to secure sealing and maintain clearance tolerances.