View Full Version : Torquing up headbolts
IIRC these have to at some point be done to 25Nm, but all the 1/2" torque wrenches i can find go from 30NM, mine included, can't impagine an extra 5 Nm is gonna make that much of a difference.
Also my T55 bit is 1/2" drive and i can't find any 3/8" drive, whihc the smaller range wrenches seem to be
i blagged mine, bad practice i know but its been safe as houses for six months, and i used a 30nm min torque wrench
thats good enough for me
over tight is better than undertight
i have a 3/8 drive snap-on (oooh check me!) torque wrench for engine building, goes nice and low...its all thats needed.
machinemart do similar at very low cost.
thats good enough for me
over tight is better than undertight
guess what i used for angle wrench bit n all?
u might have trouble getting a 1/2" T55 socket down the hole if the cams are in place. Could only use a 3/8" on mine.
Halfrauds sell a "professional" 3/8 torque wrench that goes from 5-60 iirc, very good and cheap. u could always use it then take it back say it was wrong one lol.
Bit or cardboard??
I have a spinning piecxe of plastci that you hold with your finger
It fits down in there as i removed them with it, cams are still off the head, will just fit them when the head is back on, hard doing everything with the head sat on end so as not to damage the skimmed face
Bit or cardboard??
I have a spinning piecxe of plastci that you hold with your finger
nothing, eyesite n that was it, oh and a solid socket bar! :oops:
LOL, could have made a disc of card and cut a square hole int he middle and marked the degrees round it lol
i have a 3/8 drive snap-on (oooh check me!) torque wrench for engine building, goes nice and low...its all thats needed.
machinemart do similar at very low cost.
what you want is a 1/4 clicker and 3/8 clicker, then a 3/8 dial and 1/2 dial
;)
i have a 3/8 drive snap-on (oooh check me!) torque wrench for engine building, goes nice and low...its all thats needed.
machinemart do similar at very low cost.
Yeah but my T55 socket is 1/2" drive and i'm totally broke
u can get a 1/2-3/8 adaptor for £1-2. check ur local cheapo tool store.
I've found a 1/2" one that will take 3/8" sockets but not t'other way around, will save my £60 that i spent on a Teng torque wrench i think
i just bought a 3/8 torque wrench :D
over tight is just as bad as under tight
check ur haynes manual mate....it tells u what n/m they are and tightening sequence u shud do
the final torque figures are in degrees, i guessed mine and its not used one dop of water in a year! and its had some abuse too!
:roll: each to their own then
as long as all y'all r happy with ur machines :D
yes each to their own i agree, i was just saving tom looking for final torque figures in haynes as they dont exist!
sorry man, i jst remember watchin my dad do it, as soon as u said degrees i remember him getting out that weird degree tool
my bad! :shock:
no need to apologise, i cant help it if i'm good :wink: :lol:
stock head bolts are designed to work with massive stretch figures so that 'idiots' can basically go stupid and not damage anything.
Not saying that anybody is stupid, but its got that safety factor.
When you are working on a shoe string some thigns have to be improvised, can't so spending hundreds of pounds on exactly the right tools
Found a coverter i need now, so will torque tehm up to teh right torque and the right angle as my wrench has a built in angle gauge on teh head
benR and stan do you lube your head bolts and if so with oil or arp lube.
stock head bolts, 30w oil. Using ARP lowers the friction too much and affects the torque reading.
do arp do a stud kit for the f7 yet
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