Subaru 2002 Impreza Service Manual page 145

TIMING BELT
a
Mechanical
2. Timing Belt
0
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.
0
The timing belt teeth have a specially designed round profile which contributes to quiet opera-
tion. The timing belt is made of strong and inflexible core cords, wear-resistant canvas and heat-re-
sistant rubber material.
0
A hydraulic automatic belt tension adjuster always keeps the belt taut to the specified tension.
Any manual belt tension adjustment is unnecessary.
NF0040
(1) Timingindicator(FortimingmarkofcrankshaftpuI1ey)
(2) *Piston position mark (9) Idler No. 2
(3) Belt tension pulley (1 0) Timing belt
(4) Automatic belt tension adjuster
(5) Alignment mark
(12)
Idler
(6) **Piston position mark
(8)
Water pump pulley
(11)
Crankshaft sprocket
(1 3) Camshaft sprocket
RH
(7) Camshaft sprocket LH
NOTE:
*:
The #I piston is at TDC when the piston position mark on the crankshaft sprocket is aligned with
the timing mark on the cylinder block.
**:
The
#I
piston is at TDC on the compression stroke when the piston position mark on the cam-
shaft sprocket is aligned with the timing mark on the belt cover.
M E-3