Share
Results 1 to 4 of 4

Thread: Why is a catalytic converter built like this?

  1. #1
    Join Date
    Oct 2010
    Location
    Northern Virginia
    Posts
    1,323

    Default Why is a catalytic converter built like this?

    I'm replacing the exhaust pipes on my vehicle and because rust had just fused the catalytic converter's bolts and nuts, ground them off. It looks like the bolts may have been brazed onto the converter; I got a wrench on one nut and it just twisted the bolt off. Brazed? I don't get it. It's an oddly shaped bolt, too.

    I'm thinking I'll mount the new exhaust onto the converter, get new bolts from the converter side through to the exhaust, then weld the bolts in place. That is, if the converter is steel- I'll do the grind test to see if it's steel or cast iron.

    Click image for larger version. 

Name:	cat.jpg 
Views:	194 
Size:	130.3 KB 
ID:	13028
    DaveO
    Oxweld oxy acet gear
    IMIG 200
    PowerTIG 210 EXT... Amazing!

  2. #2

    Default

    Quote Originally Posted by DaveO View Post
    I'm replacing the exhaust pipes on my vehicle and because rust had just fused the catalytic converter's bolts and nuts, ground them off. It looks like the bolts may have been brazed onto the converter; I got a wrench on one nut and it just twisted the bolt off. Brazed? I don't get it. It's an oddly shaped bolt, too.

    I'm thinking I'll mount the new exhaust onto the converter, get new bolts from the converter side through to the exhaust, then weld the bolts in place. That is, if the converter is steel- I'll do the grind test to see if it's steel or cast iron.
    It's a stud not a bolt.
    2013 250EX : SSC Pedal : I-MIG 250P 20' Profax gun : Power Plasma 60 p80 torch : 3M Speedglas 9100XX : Evolution Rage 3 DB cold saw

  3. #3

    Default

    lol. It was a stud. Well I guess it still is, just not attached. Good thing you have the 210ext.
    Mike R.
    Email: admineverlast@everlastwelders.com
    www.everlastgenerators.com
    www.everlastwelders.com
    877-755-9353 x203
    M-F 12 - 7PM PST
    FYI: PP50, PP80, IMIG-200, IMIG-250P, 210EXT and 255EXT.

  4. #4
    Join Date
    Oct 2010
    Location
    Northern Virginia
    Posts
    1,323

    Default

    Got wrapped up in other chores and didn't get to finish. I did the spark test, though, and it sparked just like known steel. So I was thinking to line up the converter and the new pipe, mount new bolts, and then some quick MIG tacks.
    DaveO
    Oxweld oxy acet gear
    IMIG 200
    PowerTIG 210 EXT... Amazing!

Similar Threads

  1. Replies: 3
    Last Post: 06-22-2014, 09:11 PM
  2. Has anyone built a bicycle before, from scratch?
    By CGCINC in forum General Welding Questions
    Replies: 7
    Last Post: 05-08-2012, 02:00 PM
  3. Torches with built in switch
    By Jake98 in forum TIG Welding (GTAW/GTAW-P)
    Replies: 4
    Last Post: 12-26-2011, 01:21 PM
  4. Home built Tig Cooler
    By Ram48 in forum Other Custom Fabrications
    Replies: 13
    Last Post: 05-04-2011, 06:03 PM
  5. Custom Cart built using Everlast power tig 200lx
    By britstef in forum Other Custom Fabrications
    Replies: 3
    Last Post: 03-29-2011, 07:12 PM

Posting Permissions

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