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heinzboehmer's 2002 Topaz 6MT Coupe

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    Originally posted by Obioban View Post

    That’s weird… m3 strut brace fit under my M3 wagon hood without any cutting/trimming 🤔
    Mine cleared statically but contacted (just barely) dynamically. Good times!
    ‘02 332iT / 6 | ‘70 Jaguar XJ6 electric conversion

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      Bonding time!

      Started by clearing everything I could out of my way. This essentially amounted to airbox, blower motor, blower motor housing, engine beauty cover, wiper linkage (just moved that out of the way) and windshield cowl. I also covered up any openings that metal shavings could fall into:



      Removing the blower motor absolutely sucked. It's like there was no effort dedicated to serviceability of that assembly when it was being designed. I did do it all with the windshield mount roughly in place, just to make sure that it was still doable. Fortunately, it didn't get in the way at all.

      Gonna do my future self a favor and document the best way I found to remove the blower motor:

      1. Remove the front cover. One screw up top and two clips at the bottom. I still don't know how BMW expects you to get that piece past the firewall, but with enough swearing and bending, it'll come out.

      Click image for larger version

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      2. Remove the passenger side cover. Undo the three screws holding it in (circled) and remove the two linkages attached to it. Take note of how the linkage for the secondary flap is clocked so that it goes back together in the same way.

      Click image for larger version

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      3. Unhook the blower motor (no need to undo the four screws of the mount) and wiggle it out through the passenger side. Be careful to not catch the vanes on the front cover clips and damage them. Also, the engine harness has to be moved out of the way for it to clear.

      Click image for larger version

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      Anyway, back to prep.

      Started by test fitting the aluminum piece for the final time and then tracing its outline on the chassis:

      Click image for larger version

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      Then, time to sand. Started manually, but very quickly gave up. Dremel made fairly quick work of it:

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      I followed that up by sanding with 220 grit, then a bunch of acetone wipes to get rid of all debris and finally an IPA wipe. Adhesive next.

      And then this happened:

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      Bad picture, but one side of the adhesive cartridge blew out the back and leaked everything that was in there.

      Admittedly, this was entirely my fault. Turns out the applicator I have does not fit the 07333 cartridge. I didn't realize this until today, so I decided to fix the issue with some zip ties. It worked great until it caused one of the cartridge pistons to spin inside the cylinder and cause the mess above.

      Lesson learned. Next time I need to jerry rig an applicator, I'll throw some sockets into the cartridge cylinders to spread the load.

      Replacement adhesive (and appropriate applicator) ordered. Will give this another shot in a few days....
      2002 Topasblau M3 - Coupe - 6MT - Karbonius CSL Airbox - MSS54HP Conversion - Kassel MAP - SSV1 - HJS - PCS Tune - Beisan - MK60 Swap - ZCP Rack - Nogaros - AutoSolutions - 996 Brembos - Slon - CMP - VinceBar - Koni - Eibach - BlueBus - Journal

      2012 Alpinweiss 128i - Coupe - 6AT - Slicktop - Manual Seats - Daily - Journal

      Comment


        Originally posted by heinzboehmer View Post
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        Oooohhhh! Now I understand how it fits. I've looked at the part and never understood how it would mount. lol

        Maybe I missed it...any reason you chose 07333 vs 08115 (panel bond)?

        Comment


          Originally posted by bigjae46 View Post
          Maybe I missed it...any reason you chose 07333 vs 08115 (panel bond)?
          Based on 3Ms own recommendation

          07333 is for structural stuff, 08115 is for non structural body panels:

          3M Panel Bonding Adhesive Designed to meet specific strength requirements for outer
          sheet metal panel replacement; panel bonding adhesive is
          typically used in conjunction with welding, rivets or hem
          flange joints. Panel bonding adhesives do not offer the same
          level of impact resistance as impact resistant structural
          adhesives and should not be used for structural repairs unless
          recommended by the specific automotive manufacturer.

          3M Impact Resistant Structural Adhesive
          Designed to meet specific strength requirements for parts
          such as frame rails, strut towers, sills, pillars and other
          members where impact resistance is important. This type of
          adhesive possesses a much greater ability than traditional
          bonding adhesives to absorb and manage energy under a
          variety of forces, especially peel and cleavage stresses in
          extreme temperature conditions. Typically
          impact resistant structural adhesive is used in conjunction
          with rivets, spot welds or mechanical fasteners.
          Document where that quote came from is attached.
          Attached Files
          2002 Topasblau M3 - Coupe - 6MT - Karbonius CSL Airbox - MSS54HP Conversion - Kassel MAP - SSV1 - HJS - PCS Tune - Beisan - MK60 Swap - ZCP Rack - Nogaros - AutoSolutions - 996 Brembos - Slon - CMP - VinceBar - Koni - Eibach - BlueBus - Journal

          2012 Alpinweiss 128i - Coupe - 6AT - Slicktop - Manual Seats - Daily - Journal

          Comment

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