Crank bolt torque for timing belt change (10v)

[Phil Payne]

> OK, guys. I've looked for the actual torque on this bolt and have found so
> far...
> 
>  
> 
> 330 ft-lbs at the bolt
> 
> 450 ft-lbs at the bolt
> 
> 400 ft-lbs at the bolt
> 
> 258 ft-lbs at the end of the 2079 tool
> 
>  
> 
> Of course Bentley says use the 2079 tool but they don't say how long the
> torque wrench is which is a variable one must know in order to get the
> setting right.
> 
>  
> 
> The center to center length of the 2079 is 12 inches. If the length of the
> torque wrench is "L" and the torque setting on the wrench is "T" then the
> torque delivered to the end of the 2079 tool is: T * ((12+L)/L). This
> assumes the 2079 and torque wrench are in line, otherwise we have to apply a
> sin function. So I'm missing one more variable, either the actual torque I
> need or the length of the torque wrench that Bentley describes. Picture
> 17-223 in the Bentley shows that clearly the torque wrench is longer than
> the 2079 but then the bar goes outside the picture frame.
> 
>  
> 
> So, anybody have the actual torque for this bolt?

http://www.isham-research.com/quattro/torque.html - discussion at foot of page.

-- 
  Phil Payne
  http://www.isham-research.com/quattro
  +44 7785 302 803
  +49 173 6242039