Headbolt torque??

[Dancliovalver]

just fitted my headbolts to my engine but i cant find in the haynes manual the torque setting to tighten them!!!

anyone no it??

cheers guys

[BigBoreBri]

Starting from the inside and working clockwise in sequence follow:

3daN.m : 1st Stage
5daN.m : 2nd Stage

Wait for a minimum of 3 minutes... Then loosen all bolts completely...

Following that retightn to 2.5daN.m and angle tighten to 107 Deg.

[BigBoreBri]

Thats for an F7R BTW... assume its the same for a F7P :?

[Coops]

shud be on the box the head bolts come in, i used that

[Rich]

tis same on f7p yeah

[bass_direct]

Starting from the inside and working clockwise in sequence follow:

3daN.m : 1st Stage
5daN.m : 2nd Stage

Wait for a minimum of 3 minutes... Then loosen all bolts completely...

Following that retightn to 2.5daN.m and angle tighten to 107 Deg.

isn't the last stage 120 degree's, seem to remember one place saying 107, another saying 120

[MAXIBOY]

mr haynes says stage one 30 nm stage two angle tighten 51 degrees +- 4 degrees stage three wait three minutes minimum stage four loosen all bolts completely stage 5 25 nm stage six angle tighten 108 +- 3 degrees. lightley oil bolt threads

[MatBrown]

The Williams workshop manual says:

1st tightening - 30Nm
2nd tightening - 50Nm
Wait 3 mins and loosen completely
1st retightening - 25Nm
2nd reightening - 107' +- 2'

Just noticed, must be reading the same thing as Bri. :roll:



Mat.