Easy subframe bushings replacement

[sdewitt at stx.rr.com]

The factory bolts have a flat on the tip of them and are pointed which makes installation 10,000,000 times easier. But what you have should work provided they are zinc plated like the factory ones.

----- Original Message -----
From: Louis-Alain_Richard at computerhorizons.com
Date: Wednesday, October 20, 2004 3:26 pm
Subject: Easy subframe bushings replacement

> 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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