speed.46

changed the head gasket so had to take the cams out,please can anyone help with the torque setting

scoobynewbie72

iTrader: (1)

18 - 22 Nm on autodata fella

speed.46

that brill mate, thank you very much

Tucker82

iTrader: (7)

I think its 10nm... I would ask around. I ended up buying 2 new heads as 3 bolts snapped over tightening.

Pavlo

auto data is wrong!

7-10nm for all the bolts on a 93-96 car.

20nm for the cam cap bolts under the cover, 7-10 for the front caps on newer cars.

scoobynewbie72

iTrader: (1)

sorry for my miss info, i took it from autodata as said, humble pie eaten.

172sport

iTrader: (6)

Be aware some are 8mm and some are 6mm, you will strip threads or snap bolts if you use the wrong torque

Tucker82

iTrader: (7)

I learn't the hard way! I read somewhere it was 17Nm.. Ended up snapping a few bolts, then drilled and Heli coiled them. Re-built and whilst cranking, camshaft shifted, ceased and tore through the cambelt... Engine back out and a pair of new heads... Never missed a beat since tho

speed.46

thats great everyone thanks,we did'nt even know the cams had to come off to do the head gaskets.

i got this for the head . dose it look right.

Head bolt torque

Tighten in the following stages

1. 29Nm

2. 69Nm

3.Slacken bolts by 180 degrees

4. Slacken bolts a further 180 degrees

5. Bolts 1 and 2 to 34Nm

6.Bolts 3-6 to 15Nm

7. Tighten all bolts by 90 degrees

8. tighten a further 90 degrees

Sequence

5 2 4

3 1 6

3 1 6

5 2 4

Bolts 5 3 3 5 are the flywheel side of the engine

scoobysmiff

iTrader: (2)

Impreza Engine Build Information


Belt cover 4.9NM
Belt tensioner 30NM
Cam pulleys 78NM
Idler pulleys 35NM
Front pulley (crank) 98NM
Cam cover bolts 10NM
Cam caps to head 10NM (M6) 20NM (M8
Head bolts stage 1 29NM or 22lb's/ft
stage 2 69NM or 51lb's/ft
stage 3 Back Off 180 deg
stage 4 Back Off a further 180 deg
stage 5 RE-TOQUE 29NM or 22lb's/ft
stage 6 80 deg to 90 deg (do not go over 90 deg)
stage 7 40deg to 45 deg (do not go over 45 deg)
stage 8 no1 and no2 40 deg to50 deg further (do not go over 50 deg)





Note! Oil and grease threads and washers







Baffle plate 10NM (thread lock)
Pick up pipe 10NM
Crank case bolts (outer upper) 25NM
Crank case bolts (Inner) 47NM
Water pump 10NM
Bungs for gugeon pin 69NM
Oil pump bolts 10NM
Sump 10NM
C/Sunk bolts 10NM
Std big end bolts 46NM
H section uprated con rod big end bolts 43ft/lbs or 58.3NM
Flywheel 75NM
Clutch cover 20lb's/ft
Inlet valves 8'' cold
Exhaust valves 10'' cold
this should help

speed.46

thats great mate thanks