GC8 StI Torque settings

[ginganinja]

Hey there,

 

Does anyone know where to find all torque specs for 1999 wrx STI?

 

After specs for subframe bolts, diff mount bolts, etc. Basically all chassis bolts and sway bar mounts, and also engine torque specs too. E.g. exhaust and intake manifolds, clutch, flywheel etc.

 

Be glad if someone can point me in the right direction.

 

Cheers 

[Loren]

These are some notes I have emailed to myself in the past that I can find easily... doesn't cover everything you want though.

 

Rear suspension

Big lateral link bolt = 100 ft-lb
Strut to knuckle = 162 ft-lb
Trailing arm to body = 85ft-lb
Trailing arm to knuckle =66 ft-lb
Lateral links to crossmember = 74 ft-lb

 

Con Rod Big End Caps = 44.6 N.m (4.55kgf-m, 33 ft-lb)

Block Bolts:
12mm Head = 25 N.m (2.5 kgf-m, 18 ft-lb)
14mm Double Hex = 47 N.m (4.8 kgf-m, 34.7 ft-lb)
Sump Baffle Plate = 6.4 N.m (0.65 kgf-m, 4.7 ft-lb)
Oil Pick Up Pipe = 10 N.m (1 kgf-m, 7 ft-lb)
Sump Pan = 5 N.m (0.5 kgf-m, 3.6 ft-lb)

Cylinder Head Bolts:
The text refers to bolts A,B,C etc, they are as follows:
A = Top Middle
B = Bottom Middle
C = Top Left
D = Bottom Right
E = Bottom Left
F = Top Right

When removing Cyl head bolts, they should be undone in the following order. F E D C B A
Refitting Cyl Heads:

(1) Apply a coat of engine oil to washers and
bolt threads.
(2) Tighten all bolts to 29 N•m (3.0 kgf-m, 22 ftlb)
in alphabetical sequence.
Then tighten all bolts to 69 N•m (7.0 kgf-m, 51 ftlb)
in alphabetical sequence.
(3) Back off all bolts by 180° first; back them off
by 180° again.
(4) Tighten bolts (A) and (B) to 34 N•m (3.5 kgfm,
25 ft-lb).
(5) Tighten bolts (C), (D), (E) and (F) to 15 N•m
(1.5 kgf-m, 11 ft-lb).
(6) Tighten all bolts by 80 to 90° in alphabetical sequence.
CAUTION:
Do not tighten bolts more than 90°.
(7) Further tighten all bolts by 80 to 90° in alphabetical
sequence.

CAUTION:
Ensure that the total “re-tightening angle” [in
the two previous steps] do not exceed 180°.


Camshaft Caps
M8 Bolts = 20 N.m (2.0 kgf-m, 14.5 ft-lb)
M6 Bolts = 10 N.m (1.0 kgf-m, 7.2 lb-ft)

Cam Cover = 10 N.m (1.0 kgf-m, 7.2 lb-ft)
Camshaft Timing Wheels = 98 N.m (10 kgf-m, 72.4 ft-lb)
Timing Belt Idlers = 39 N.m (4.0 kgf-m, 28.9 ft-lb)
Timing Belt Tensioner Bracket 25 N.m ( kgf-m, 18 ft-lb)
Timing Belt Tensioner = 39 N.m (4.0 kgf-m, 28.9 ft-lb)
Timing Belt Covers = 5 N.m (0.5 kgf-m, 3.6 ft-lb)
Crankshaft Pulley = 177.m (18kgf-m, 130 ft-lb


Oil Cooler Modine = 55 N.m (5.5 kgf-m, 40 ft-lb)
Water Pump = 12 N.m (1.2 kgf-m, 8.7 ft-lb) – Must be done diagonally and re-checked
Oil Pump = 6.4 N.m (0.65 kgf-m, 4.7 ft-lb)
Inlet Manifold = 25 N.m (2.5 kgf-m, 18 ft-lb)
Exhaust Manifolds = 35 M.m (3.6 kgf-m, 26 ft-lb)
Flywheel = 72 N.m (7.3 kgf-m, 52.8 lb-ft)

[ginganinja]

Thanks that's helpful. That's most of it.

 

Anyone else know what subframe to chassis bolts specs are?