Timing Belt: Description and Operation

Timing Belt





^ A single timing belt drives four camshafts (intake and exhaust camshafts on each bank). The belt also drives the water pump by its non-toothed side.
^ The timing belt teeth have a specially designed round profile which contributes to quiet operation. The timing belt is made of strong and inflexible core cords, wear-resistant canvas and heat-resistant rubber material.
^ A hydraulic automatic belt tension adjuster always keeps the belt taut to the specified tension. Any manual belt tension adjustment is unnecessary

NOTE:
^ The #1 piston is set at the Top Dead Center (TDC) when the piston-position mark on the crankshaft sprocket is aligned with the mark on cylinder block.
^ The #1 piston is set at TDC on the compression stroke when the piston-position mark on the camshaft sprocket is facing directly upward.