Impreza 2.5 RS Sedan AWD F4-2.5L SOHC (2002)
Timing Belt: Description and Operation
Timing Belt
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A single timing belt drives two camshafts (one in the left bank and one in the right bank). The belt also drives the water pump by its non-toothed
side.
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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.
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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 at Top Dead Center (TDC) when the piston position mark on the crankshaft sprocket is aligned with the timing mark on the
cylinder block.
** The #1 piston is at TDC on the compression stroke when the piston position mark on the camshaft sprocket is aligned with the timing mark on
the belt cover.
