Page 1 of 2 12 LastLast
Results 1 to 10 of 15
Like Tree2Likes

Thread: Broken frame welds

  1. #1
    Up Quark
    Join Date
    Jun 2017
    Location
    Hillsborough, NJ
    Posts
    21
    Blog Entries
    2
    Country
    United States

    Broken frame welds

    The weather was great Sunday so I took my Atom 2 out of winter storage for a ride. I noticed that it would pop out of 3rd gear if I hit a bump or if I was cornering hard. It didn't seem to feel like it was going completely into gear either. By the end of the ride it had gotten worse as I was having trouble getting it into first gear. Figuring that either I had and issue with the transmission or the linkage I first looked to see if the linkage was binding or hitting anything that prevented it from going into gear hoping that I might find a nice cheap solution. I noticed that the linkage was hitting the frame and suspected that perhaps a motor mount had broken. The mounts appeared fine but the motor appeared to be sagging and was touching the frame at one point. Closer inspection uncovered that the weld for the frame cross member between the cockpit and the engine that the motor mount is attached had failed (see the photo attached). Has anyone experienced this failure on their Brammo built Atom 2? Last summer I had the weld for the click that holds the passenger mirror and front cover on fail and didn't think much about it as it wasn't a structural weld. Makes me wonder which weld might fail next. weld break.jpg
    06Arielatom likes this.

  2. #2
    Lepton Atommatt's Avatar
    Join Date
    Mar 2012
    Location
    Michigan
    Posts
    423
    Blog Entries
    1
    Country
    United States
    06Arielatom likes this.

  3. #3
    Lepton cvjoint's Avatar
    Join Date
    Mar 2017
    Location
    San Francisco
    Posts
    461
    Country
    United States
    Daunting. Had Skunkwurx welds fail but not TMI.

  4. #4
    Lepton McFred's Avatar
    Join Date
    Apr 2011
    Location
    SW, USA
    Posts
    361
    Country
    United States
    That's not real cool. May I ask what engine platform your AA2 has? Ecotec? it shouldn't be a difficult fix other than the engine would likely need to be pulled... A "while you're in there" fix I'd suggest a couple gussets be added too for added reinforcement.

  5. #5
    Up Quark
    Join Date
    Jun 2017
    Location
    Hillsborough, NJ
    Posts
    21
    Blog Entries
    2
    Country
    United States
    I have Terry Kennedy's old car. It has the Ecotec with the supercharger. I would agree the motor will need to be pulled. Adding the extra reinforcement is a wise idea.

  6. #6
    Neutrino Norm's Avatar
    Join Date
    Aug 2010
    Location
    Lake Tapps, WA
    Posts
    2,223
    Country
    United States
    Being that is the highest mileage car, I wonder if we see more of this. Not good.

  7. #7
    Electron sector: 4's Avatar
    Join Date
    Nov 2017
    Location
    Earth
    Posts
    200
    Country
    United States
    Wow, this is a new one. I'm guessing that car has done a lot of off-roading in remote areas out in the desert. Terry liked to explore.

    You're going to need to pull the engine and move whatever else you can out of the way. The weld area needs to be cleaned spotless by careful metal abrasion or the weld will be contaminated and ruined. TIG welding is preferred. As for what welds are next to fail, it's likely that there has been enough frame flexing to have fatigued several other welds. All of the welds on the ends of those tubes in the picture are especially suspect, but you really want to check the entire engine bay. I'd see if you can find a reputable racing car specialist to work on this - one that can Zyglo or Magnaflux the other welds for cracks. Adding a triangular gusset here may help.

    Sorry to hear about this, especially so soon after you bought it.

  8. #8
    Lepton McFred's Avatar
    Join Date
    Apr 2011
    Location
    SW, USA
    Posts
    361
    Country
    United States
    I don't recall which side of the suspension collapsed where Terry had to drive a ways to get the car to a median. It ground a way a bunch of one corner of the rear/lower frame/engine cradle tubing. The frame (or perhaps a replacement tube?) could have been otherwise compromised when the rear suspension thimble cracked in two and disjointed the shock/bellcrank/pushrod from the upright.

  9. #9
    Up Quark
    Join Date
    Jun 2017
    Location
    Hillsborough, NJ
    Posts
    21
    Blog Entries
    2
    Country
    United States
    I believe that Terry's issue occurred on the passenger's rear (opposite corner that I had an issue with). Shop inserted a thicker walled skinnier tube inside of the bottom side rail to give it more strength. They are doing the same on the passenger side. In addition they welded a piece of larger tubing on the end of the cross bar so that it makes a stronger weld to the side rail. If I can find the photos I will attach them.

  10. #10
    Up Quark
    Join Date
    Jun 2017
    Location
    Hillsborough, NJ
    Posts
    21
    Blog Entries
    2
    Country
    United States

Page 1 of 2 12 LastLast

Similar Threads

  1. Link broken
    By quark in forum Welcome New Members! You MUST post here first to activate your account!
    Replies: 1
    Last Post: November 22, 2012, 10:30 AM
  2. Wanted rear wing frame
    By Rocket Man in forum Parts and Accessories for Sale
    Replies: 0
    Last Post: July 28, 2012, 01:00 PM
  3. 458 Italia Frame construction
    By bolus in forum Humor and Off-Topic Discussion
    Replies: 3
    Last Post: August 19, 2011, 12:11 PM
  4. frame mounting option
    By bolus in forum General Ariel Atom Technical Discussion (for all UK and US versions)
    Replies: 4
    Last Post: April 24, 2011, 07:05 PM
  5. Protecting the frame
    By bolus in forum US Ariel Atom 2 (Brammo) Technical Discussion
    Replies: 9
    Last Post: March 28, 2011, 08:25 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •