Board logo

black top zetec torque settings
mr zefect - 14/5/09 at 07:41 PM

Can anyone help i need torque settings for head bolts and cam caps thanks.

prelude1980 - 14/5/09 at 07:49 PM

I have the below from a haynes manual for a silver top, would imagine they are going to be the same possibly

Cylinder head bolts

Stage 1 - 25 Nm
Stage 2 - 45 Nm
Stage 3 - Angle tighten a further 150 degrees

Camshaft bearing cap bolts


Stage 1 - 10 Nm
Stage 2 - 19 Nm

[Edited on 14/5/09 by prelude1980]

Danozeman - 14/5/09 at 08:16 PM

From autodata. ST170 engine

Head bolts
Stage 1 20nm
Stage 2 40nm
Stage 3 90'

Sequence
belt end 10 4 2 6 8 flywheel end.
---------------7 5 1 3 9


Cam caps 15nm

[Edited on 14/5/09 by Danozeman]

[Edited on 14/5/09 by Danozeman]

mr zefect - 14/5/09 at 08:47 PM

Many thanks for your help.

dhutch - 17/8/20 at 07:51 AM

quote:
Originally posted by prelude1980
I have the below from a haynes manual for a silver top, would imagine they are going to be the same possibly

Cylinder head bolts

Stage 1 - 25 Nm
Stage 2 - 45 Nm
Stage 3 - Angle tighten a further 150 degrees

Camshaft bearing cap bolts

Stage 1 - 10 Nm
Stage 2 - 19 Nm

For the silvertop, elsewhere I have seen 105deg, rather than 150. Incase anyone else if following this.

dhutch - 17/8/20 at 07:58 AM

quote:
Originally posted by Danozeman
From autodata. ST170 engine

Head bolts
Stage 1 20nm
Stage 2 40nm
Stage 3 90'

Cam caps 15nm

For the blacktop I have seen 20Nm, 40Nm, 90deg and on one site 15Nm, 40Nm, 90deg, so that sounds good.
For bearing caps again, I have seen 10+19Nm for blacktop as posted for the Silver.

Head removal and tightening sequence; start in the middle and work out in a star shape.
https://2img.net/h/i63.photobucket.com/albums/h146/hardhouseheaven_uk/100d4076.jpg

Cam removal; start one from the non-pulley end, then middle, then end, then work toward pulley.
https://2img.net/h/i63.photobucket.com/albums/h146/hardhouseheaven_uk/bearingcapsleckening.jpg
Cam refitting; start at the non-pulley end and just work in a line work to the pulley end.
https://2img.net/h/i63.photobucket.com/albums/h146/hardhouseheaven_uk/bearingcaptightening.jpg

Tiny bit of sealant on the outside edge of pulley end cam-cap next to the oil seal.


Daniel