timbob

Can any body help me out with torque setting for Bov. Y-pipe bolts and rocker cover need to put some new gaskets on its for a 2004 impreza sti thanks

ditchmyster

iTrader: (7)

i know the rocker cover is supposed to be 5nm but if you do them to that there's a good chance they'll snap, so you have to do them by feel and don't go mental, just nip them up until they feel tight don't swing on them or you'll be in a world of hurt involving helicoils, drill bits and swarf in the engine.

timbob

Thanks mate i be careful

edsel

iTrader: (2)

If you cant be arsed to download one of the manuals. here's a cut and paste from a doc I had lying around...


Ooops .... assume yours is new age this is for classic


Torque settings between Sti & Uk are the same.


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)