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| 5h4dy |
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Hi guys,
I see in all the literature it says to torque head bolts to 40nm, then 90 degrees.... But I heard that 40, then 80, then 110 may be better? What say you? 
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| TimmyA |
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There is two different specs depending on the car and I'm not sure what made them change...
These being the genuine ford manual specs... EA-EL (I think) were 40Nm + 90deg AU was 30Nm + 120deg If you are saying 40Nm then to 80Nm then to 110Nm that isn't right? You have no units beside your numbers though so I'm not sure what you're saying? When I fitted the AU VCT head to my falcon I used 30+120 Cheers, Tim
_________________ 93 Red ED 5spd Manual Build Thread Last edited by TimmyA on Sat Jan 05, 2013 7:00 pm, edited 1 time in total. |
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| 5h4dy |
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TimmyA wrote: There is two different specs depending on the car and I'm not sure what made them change... EA-EL (I think) were 40Nm + 90deg AU was 30Nm + 120Nm When I fitted the AU VCT head to my falcon I used 30+120 Cheers, Tim Yes, I have an EBII - so the literature for the thing says 40 + 90 deg, but someone said 40,80,110 gives better results... |
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| TimmyA |
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see above^^^
_________________ 93 Red ED 5spd Manual Build Thread |
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| TimmyA |
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I made an edit...
_________________ 93 Red ED 5spd Manual Build Thread |
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| 5h4dy |
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TimmyA wrote: I made an edit... Yes I mean 40nm, then 80nm, then 110nm - It was suggested to me that those in motorsport circles use those settings instead of the degrees method |
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| TimmyA |
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Na you can't do that with TTY bolts... They don't work like that...
You do them to the correct torque and then you stretch them past their yield point and this can only be measured by the degrees... Not with Torque... For them to do that they must be using Non TTY products maybe that includes such things as stud kits or just high tensile bolts? Cheers, Tim
_________________ 93 Red ED 5spd Manual Build Thread |
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| 5h4dy |
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TimmyA wrote: Na you can't do that with TTY bolts... They don't work like that... You do them to the correct torque and then you stretch them past their yield point and this can only be measured by the degrees... Not with Torque... For them to do that they must be using Non TTY products maybe that includes such things as stud kits or just high tensile bolts? Cheers, Tim Ah I see, this makes sense to me now... so once they start to stretch, the torque values mean nothing. Thanks 
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| Benny D |
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ahh... see in my mechanics guide to cars, the section for headbolts states the specific info of :
for head bolt the exact amount to do them up is f**ken tight. 
_________________ BA XT V8. Ice Mint. 18" Speedys. XR6T LSD. Full Pacemaker twin 2 1/2inch Stainless Steel system. Custom CAI. Black XR interior with white trimming. Powerbond underdrive kit 25%. |
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| TimmyA |
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Benny D wrote: ahh... see in my mechanics guide to cars, the section for headbolts states the specific info of : for head bolt the exact amount to do them up is f**ken tight. That pretty much covers it... Meter long breaker bar plus big bit of thick walled pipe...  Cheers, Tim
_________________ 93 Red ED 5spd Manual Build Thread |
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| mick au2 |
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and an angular torque gauge, super cheap has em for $15, good investment as there are a few other bolts that use TTY fastening.
_________________ My cars don't advertise for Unit, Metal Mulisha, Loosekid Industries, Inverted, Famous stars & straps crap, R.M. Williams, Fusion, DC Shoes or the Transformers. |
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| phongus |
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If you are using a composite head gasket, use 40Nm + 90 degrees. If you use the AU MLS head gasket, use 30Nm + 120 degrees.
_________________ phongus = Post whore 2006 |
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