[urq] Easy subframe bushings replacement

Louis-Alain_Richard at computerhorizons.com Louis-Alain_Richard at computerhorizons.com
Wed Oct 20 16:31:24 EDT 2004


Hi there,

I just installed the 4 OEM bushings on the rear subframe, and the job was 
even easier than last week's (front subframe).
Why?
Because I followed one listers suggestions: put the rubber bushings in the 
freezer for an hour. Installation was nearly effortless... but I can't say 
if it's more the freezer or because I am now a semi-pro of bushings 
installation (I have done the 16 on my car...)!
Nonetheless, the harder the rubber, the easier it will slip in place, with 
less deformation of the "bulge". 


However, I have some questions regarding the bolts and their torquing.

Since all the subframes bolts must be replaced (per Bentley), and my 
dealer doesn't stock them, I went to my FLAPS and bought some M10X85 
bolts. 

Now, can somebody tell me if these bolts (grade 8.8) are correct for this 
application ? 
What is the difference with the 8.9 grade we more usually see ?
Are the OEM bolts (N 905 569 02) special high strenght bolts ?

For the torquing:
Bentley says torque to 25 ft-lbs and then add a quarter turn more. I did 
just that.
But even after that, I still feel that the bolts are "under torqued"... It 
was real easy to add that quarter turn. More, there is no provision for 
securing the bolts in place (no Loctite, no lock washers, nothing...). 

Am I paranoid ? Should I leave this all alone and don't worry about it 
anymore?

Thanks in advance,

Louis-Alain
1983 Quattro, gliding over bumps now...


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