Subaru STi TIMING BELT User Manual

STi TIMING BELTINSTRUCTIONSThank you for your purchase of SPT Performance Parts.The following instructions have been provided to you as a courtesyof S

9Install the timing beltCrankshaft and camshaft sprocket alignment(1) Align mark (A) on the crankshaft sprocketwith mark on the oil pump cover at cyli

10and exhaust camshaft sprockets are aligned.)(4) Align single line mark (A) on left-hand exhaustcamshaft sprocket with notch (B) on beltcover by turn

11engine can be independently rotated with thetiming belts removed. As can be seen from thefigure, if the intake and exhaust valves are liftedsimultan

12intake and exhaust valves to lift simultaneously,resulting in interference with their heads.7) Installation of timing belt:Align the alignment mark

138) Install the belt idlers.Tightening torque:39 N·m (4.0 kgf-m, 28.9 ft-lb)CAUTION:Make sure that the marks on the timing belt andsprockets are alig

14(11) Tighten the remaining bolts.Tightening torque:9.8 N·m (1.0 kgf-m, 7.2 ft-lb)

15Install the timing belt cover1) Install the front belt cover (C).Tightening torque:5 N·m (0.5 kgf-m, 3.6 ft-lb)2) Install the right-hand belt cover

16Tightening torque:5 N·m (0.5 kgf-m, 3.6 ft-lb)3) Install the left-hand belt cover (A).Tightening torque:5 N·m (0.5 kgf-m, 3.6 ft-lb)Install the cran

17CAUTION:If the tightening angle of crankshaft pulley boltis less than 45 degrees, the bolt should be damaged.In this case, the bolt must be replaced

18Tightening torque:Lock bolt through bolt:25 N·m (2.5 kgf-m, 18 ft-lb)Slider bolt:8 N·m (0.8 kgf-m, 5.5 ft-lb)17) Install the belt cover.

1STi PERFORMANCE TIMING BELTTiming Belt Installation InstructionsRemove the serpentine beltsALTERNATOR / POWER STEERING BELT1) Remove the belt cover.2

23) Remove the A/C belt.4) Remove the A/C belt tensioner.Remove the crankshaft pulley1) Remove the crankshaft pulley bolt. To lockcrankshaft, use:ST 4

32) Remove the right-hand belt cover (B).3) Remove the front belt cover (C).Remove the timing belt1) Remove the timing belt guides. (MT vehicle)

42) If the alignment mark and/or arrow mark (whichindicates rotation direction) on timing belt fadeaway, put new marks before removing the timingbelt

5Z1: 54.5 tooth lengthZ2: 51 tooth lengthZ3: 28 tooth length3) Remove the belt idler (A).

64) Remove the timing belt.CAUTION:After the timing belt has been removed, neverrotate the intake and exhaust, camshaft sprocket.If the camshaft sproc

7Install the automatic belt tension adjuster assembly and beltidlerCAUTION:• Always use a vertical type pressing tool tomove the adjuster rod down.• D

84) Install the automatic belt tension adjuster assembly.Tightening torque:39 N·m (4.0 kgf-m, 28.9 ft-lb)