Thread: Head bolts, tension etc, help! Urgent .

88Nm is correct

Thats is correct setting
cheers Woz

Originally Posted by LandyBen

Hi folks, in true Land Rover style, I am trying to rebuild a series 3 petrol engine, (2.25 litre) in readiness for work tomorrow!, it's 8.39pm and slight drizzle up here in the Blue Mountains! unfortunately no car port or garage! The head has a burnt valve replaced and has been skimmed, and is all set for installing, just like to check settings for my torque wrench, which uses newton metres, the good old Haynes manual suggests 65 lbf ft, so would I be correct in converting this to nm's, by the following, 65 lbf ft X 1.356 = 88.14nm. If this sounds OK, could someone please advise, also, should I start off tightening the head by doing 'a circuit' of all head bolts say half the required torque first, then another round with end result torque, any pointers much appreciated, thank you all.

Correct figure and I would do the bolts in the order stated in the book at about half the figure, then go round in the same order to bring them up to the 88, then repeat to make sure they are all correct. Important to retension after 1000km or so, although not as much as with an alloy head.

John

Thanks everyone for your help, much appreciated, Ben.

Here is the bolt sequence also. Big bolts (1/2' UNF) are 65lb ft and the small bolts (5/16") are 18lb ft.

Thanks again Slunnie, regards, Ben.