5mm headgasket

[filh]

hello,
I need some confirmation :
I'm fitting a 5mm TRD headgasket . In workshop manual torque is set to
6,6Mkg . It's seems so low to me !

Can anyone confirm that ?If somebody has tried a higher torque , any advices and experiences welcome!
Filh

[Ivan141]

Those steel headgaskets usually have some pretty specific torque settings (higher than stock I believe).
You should look up TRD's specs if you can find them somewhere.. Maybe ask thomas (the Doctor) if he can take a peak in the TRD bible for you?

[filh]

Found this on TRD USA : 650cm/kg

http://www.trdusa.com/partscatalog.cfm?subcategory=14

That's pretty similar to stock one .
Finding that strange ....
Investigating Further
Filh

[Ivan141]

Maybe it's because the stock headgasket is already a metal one?

[Denmark]

It need oe torque,
it´s if you use other headbolts,that it needs to be different,
If you take tha oe bolts to a higher torque , you will just stretch the bolts,


So oe torque, that´s what will work


/Skassa

[filh]

I've finally set it to 7Mkg .hope it will last long....
As you said Ivan , I think that a metal gasket doesn't get as much distortion at tightening than a metal one .
Thanks for helping
Filh

[Apolan]

Just an OT; are u sure you fitted a 5mm headgasket? seems a bit thick?

[robokill]

it will prolly be a 0.8mm or a 0.6 mm standard are 1 mm !

[Apolan]

TRD i think is 0.8 mm. DO they have 0.6 too?

[parrot]

TRD do a 0.5. i have a 0.8 in mine but am thinking of changing to the 0.5mm