Cylinder Head Bolts M12 x 110mm 1.5mm pitch for the Volvo Engine High quality 12.9 te

[Mikeb185]

i have bought myself a set of these and was wondering how people torque these up? cheers

[James5]

Don't forget to add so peeps know that you are using these in an F7r turbo engine

:laugh:90nm matey, in increments though make sure block threads are clean and nothing in them:agree:

http://www.rtoc.org/boards/showthread.php?t=22520&highlight=OS8472+oil+problem&page=2


http://www.rtoc.org/boards/showpost.php?p=226850&postcount=64

[Mikeb185]

cheers mate some of the people over on clio 16 valver are just insulting!!

[Mikeb185]

and has he had no problems with it?? just out of interest

[James5]

cheers mate some of the people over on clio 16 valver are just insulting!!


Hopefully a couple more peeps will post on here to confirm what they use like Oli aka OS8472 or TNT handy with what they use:agree:

[James5]

and has he had no problems with it?? just out of interest


:laugh:Oli always has probs but nothing related to head bolts:laugh:

[Mikeb185]

cool beans! who would have thought head bolts could cause such grief! LOL:(

[Coops]

always bound to be massive indescrepancies in info as people see different results from different approaches and will always swear by whats worked

as said over on c16v, I have never used none standard bolts so wasn't really in a position to say anything otherwise but i'd still say 90nm sounds very loose compared to the standard 25nm then 108 degrees that I use on the standard bolts :smokin:

[Mikeb185]

what i need is tried and tested answers, come on the people that have used them!:) and cheers again coops ;)

[Os8472]

:laugh:Oli always has probs but nothing related to head bolts:laugh:

Oi:mad:

Yes these bolts are fine on F7p/r engines and are good for 90nm

[Mikeb185]

thanks matey!:D

[Tutuur]

always bound to be massive indescrepancies in info as people see different results from different approaches and will always swear by whats worked

as said over on c16v, I have never used none standard bolts so wasn't really in a position to say anything otherwise but i'd still say 90nm sounds very loose compared to the standard 25nm then 108 degrees that I use on the standard bolts :smokin:

When i tightened my headbolts i used a digital torque wrench. Came out at +-90nm when tightening 24+108degrees :)

Bought oe Renault ones as i was in a hurry, will deffo never do that again. Fecking 100quid for headbolts :mad:

[Mikeb185]

they do know how to charge!! lol

[Os8472]

When i tightened my headbolts i used a digital torque wrench. Came out at +-90nm when tightening 24+108degrees :)
:

Further to that, Ive got the megane Haynes manual, it states OE head bolts go to 80nm instead of all this 25nm and 108degree stuff

[Mikeb185]

Cool, so do I go 80mn or 90mn....?

[James5]

Further to that, Ive got the megane Haynes manual, it states OE head bolts go to 80nm instead of all this 25nm and 108degree stuff


Oli any chance of a quick pic of that or scan we could then attach to this thread and move it to the f7p / f7r section:agree: