Patent ID: 8413326

Claim:
An assembling method for a timing system of an engine to wind a timing chain around a sprocket attached to a crankshaft and a sprocket attached to a camshaft, comprising the steps of: (1) assembling, to an engine body, a tensioner arm adapted to push a loose side of the timing chain; (2) winding the timing chain around the sprockets of the crankshaft and the camshaft, while aligning a reference mark provided on a respective one of the sprockets, with a corresponding one of alignment marks provided on the timing chain in associated relation with the respective ones of the reference marks; (3) preliminarily assembling, to the engine body, a chain guide adapted to be brought into contact with a tight side of the timing chain; (4) positioning the crankshaft at a reference phase position thereof; (5) positioning the camshaft at a reference phase position thereof; and (6) finally assembling, to the engine body, the chain guide preliminarily assembled in the step (3), while bringing the chain guide into contact with the tight side of the timing chain with a given pushing force.