Os-engines 18TM Revo Manuale Utente Scaricare il pdf (Pagina 7)

ENGINE CONSTRUCTION

With this engine, the piston will

feel tight at the top of its stroke

(TDC) when the engine is cold.

This is normal. The cylinder bore

has a slight taper. The piston

and cylinder are designed to

achieve a perfect running

clearance when they reach

operating temperature.

Cylinder Liner

When the engine is cold. When the engine-is hot.

Near TDC

Piston

Crankshaft

Slight taper

6

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