Impreza WRX Wagon F4-2.0L DOHC Turbo (2002)
a. Preparation for installation of automatic belt tension adjuster assembly.
b. Crankshaft and camshaft sprocket alignment.
1. Align mark (A) on the crankshaft sprocket with mark on the oil pump cover at cylinder block.
2. Align single line mark (A) on the right-hand exhaust camshaft sprocket with notch (B) on belt cover.
3. Align single line mark (A) on the right-hand intake camshaft sprocket with notch (B) on belt cover. (Make sure double lines (C) on intake
camshaft and exhaust camshaft sprockets are aligned.)
4. Align single line mark (A) on left-hand exhaust camshaft sprocket with notch (B) on belt cover by turning the sprocket counterclockwise
(as viewed from front of engine).
5. Align single line mark (A) on left-hand intake camshaft sprocket with notch (B) on belt cover by turning the sprocket clockwise (as viewed
from front of engine). Ensure double lines (C) on intake and exhaust camshaft sprockets are aligned.