torque of exhaust manifolds

[Bird of Prey]

Hi folks...

What torque to reinstall the exhaust manifolds? i'm renewing the gaskets these days.


pls tell me

matt

 

[86 TR]

I think its about 35 ft.lbs.

 

[carlsbadGN]

The GN Manual indicates 25 ft. lbs.

 

[Jerryl]

Good reference :biggrin:
Bolt Torque Explained

 

[blown okie]

german engineers say they should be "goodntight".

 

[Bird of Prey]

thx for the cool link!

good that there are NM also. My engineer told me the same thing. just screw them tight. *g*

 

[pacecarta]

The GN Manual indicates 25 ft. lbs.

GM service manual say 37 lb/ft , 50 nm

http://www.vortexbuicks-etc.com/enginespec1.jpg

 

[carlsbadGN]

Yep, 37 ft. lbs. That's what I get for looking at schematics rather than a torque chart