<E30> M3 intake manifold Torx bolt torque specs?

[Josh <eurosprt@xxxxxxxxxxxx>]

My BMW factory tightening torque micro fiche is showing the torque values
as follows:

Intake manifold to head

Engine type (all)

M8  22 Nm
M7  15 Nm
M6  10 Nm

You will obviously be using the M6 10 Nm value as that is the only size
fastener used to hold the intake venturi's to the gasket and head.  I'm
pretty confident that you will gain little from a simple retorque of the
intake. Sorry I don't have the exact Ft/lb to Nm conversion however, most
torque wrenches carry both markings.  I have replaced the S14 rubber intake
manifold gaskets as a mechanic on several E30 M3's.  When I replace the
gaskets I use Permatex Grey adhesive it seems to do wonders with longevity.

    

                
>At the risk of disturbing the Digest with BMW-related content, I'd like to 
>know if anybody has the torque values (ft/lb) for the intake manifold Torx 
>bolts on my E30 M3? I'm planning on trying to tighten it down to smooth out 
>my idle. If that's a bust, then it's new gasket time. Has anybody found a 
>gasket-forming compound to squirt onto the rubber when it's time for 
>reassembly which helps to prolong the interval before leaks start to develop 
>again?
>Probably the Dinan turbo I have strapped onto the intake side doesn't help 
>matters much, but it does help make things more enjoyable at full boost. 
>; )
>TIA



Josh
Eurosport
(801) 463 4919

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