Torque spec for the intake manifold nuts?

[its55]

Can someone tell me the torque specs for the intake manifold (and the cooling system "branch stub"), I was unable to find it in at this link or in my books...

 

Thanks!

 

[TobyB]

Tight enough to seal, usually 'quite tight' by wrench, or 'medium tight' by 3/8" ratchet.

 

If you need a number, use the standard fastener for an 8x1.25, which is what the stud is.  

 

I like to use gasket sealant around that branch, as I've historically found that water seeps through

the gasket, and rusts the stud...

 

t

 

[ingramlee]

1 hour ago, its55 said:

Can someone tell me the torque specs for the intake manifold (and the cooling system "branch stub"), I was unable to find it in at this link or in my books...

 

Thanks!

 

This might help

 

BMW 2002 FAQ - BMW 2002 Torque Specifications.mht

[Son of Marty]

I don't see getting a torque wrench on all 8 nuts anyway (maybe if your using the 12mm head or smaller nuts) so as Toby said just tight enough to seal. Also the copper coated exhaust nuts fit and will provide a locking feature. The torque spec for a 8x1.25mm nut is 17.7 ft/lb so you'll need a inch pound torque wrench or a very low reading wrench to do that accurately, not you 100 ft/lb unit.

Edited July 24, 2023 by Son of Marty

[its55]

2 hours ago, Son of Marty said:

I don't see getting a torque wrench on all 8 nuts anyway (maybe if your using the 12mm head or smaller nuts) so as Toby said just tight enough to seal. Also the copper coated exhaust nuts fit and will provide a locking feature. The torque spec for a 8x1.25mm nut is 17.7 ft/lb so you'll need a inch pound torque wrench or a very low reading wrench to do that accurately, not you 100 ft/lb unit.

 

Thanks, primarily I want to tighten the nuts at the cooling system branch fitting, but will check others as possible.  I do have a torque wrench that I can use for this.