Page 1 of 8 123 ... LastLast
Results 1 to 25 of 188

Thread: Project weld a nut to the Transmission pan to add a drain bolt.

  1. #1
    Join Date
    Apr 2016
    Location
    CA
    Posts
    7,193
    Post Thanks / Like

    Project weld a nut to the Transmission pan to add a drain bolt.

    Looking to weld a washer and nut to the inside of the tans oil pan then another washer on the outside so the bolt will have a nice flat surface to seat against on the 95 EB Bronco. Has any one done this using mig .023?

    What's your thoughts on doing this so it don't burn through yet won't leak. I was thinking of just spot welding every thing little tacks at a time until it's fully welded all the way around inside and out then go over it afterwards with a solid bead to add strength like a second pass.
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  2. #2
    Join Date
    May 2015
    Posts
    821
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    I've done similar things with Tig. I think spot welding would probably be a bad idea as you will be more prone to possibly having a leak somewhere. Also why not just weld a nut on the outside and use a copper crush washer. It would be a lot easier to do it that way. IMHO

  3. Likes N2 Welding liked this post
  4. #3
    Join Date
    Jun 2012
    Location
    Laredo, Tx
    Posts
    5,171
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    I did it to the oil pan on my F150. You can use any wire really. I didn't even have to think about it, just weld it up.
    1st on WeldingWeb to have a scrolling sig!

    HTP Invertig 400
    HTP Invertig 221
    HTP ProPulse 300
    HTP ProPulse 200 x2
    HTP ProPulse 220MTS
    HTP Inverarc 200TLP
    HTP Microcut 875SC

  5. Likes N2 Welding liked this post
  6. #4
    Join Date
    Apr 2006
    Location
    Soda springs,Id
    Posts
    5,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    1/8" black pipe coupling and a plug. Just attach it to the side of the pan near the bottom and to the rear of the pan so it can't get snagged by something unless you're backing up.
    Ol' Stonebreaker
    "Experience is the name everyone gives to their mistakes"
    Hobart G-213 portable
    Miller 175 mig
    Miller thunderbolt ac/dc stick
    Victor O/A setup
    Makita chop saw

  7. Likes N2 Welding liked this post
  8. #5
    Join Date
    May 2014
    Location
    Central Wa. state
    Posts
    3,837
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Quote Originally Posted by Weld_ View Post
    I've done similar things with Tig. I think spot welding would probably be a bad idea as you will be more prone to possibly having a leak somewhere. Also why not just weld a nut on the outside and use a copper crush washer. It would be a lot easier to do it that way. IMHO
    Yep, weld the nut on the outside where you can weld all the way around easily, use a flange head bolt with a copper or tight fitting plastic washer. I've repaired several engine oil pans that way.

  9. Likes ronsii, N2 Welding liked this post
  10. #6
    Join Date
    Apr 2006
    Location
    Soda springs,Id
    Posts
    5,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    1/8" black pipe coupling and a plug. Attach it to the rear of the pan on the side and next to the bottom.
    Ol' Stonebreaker
    "Experience is the name everyone gives to their mistakes"
    Hobart G-213 portable
    Miller 175 mig
    Miller thunderbolt ac/dc stick
    Victor O/A setup
    Makita chop saw

  11. Likes N2 Welding liked this post
  12. #7
    Join Date
    Apr 2016
    Location
    CA
    Posts
    7,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    I'm worried about burning through the thin gauge pan with .030 wire. I suppose I could weld the nut to the outside of the pan facing towards the back of the pan so it won't get snagged on anything.
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  13. #8
    Join Date
    Apr 2016
    Location
    CA
    Posts
    7,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    What about drilling the hole through the pan? Should I use a step bit?
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  14. #9
    Join Date
    May 2016
    Location
    Cottonwood, AZ
    Posts
    268
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Seems like a good idea. I would be worried about having the pan warp and maybe leaking?
    Hobart Handler 190
    Hypertherm Powermax 45XP
    Lincoln Ranger 8
    Lincoln Ranger 305G EFI

  15. Likes N2 Welding liked this post
  16. #10
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    8,810
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Are you going to weld this 'hot' or pull the pan? If doing it hot I'd weld a nut like was suggested then you can step bit it through from the underside afterwards.. it's gonna be messy when you punch through

  17. Likes N2 Welding liked this post
  18. #11
    Join Date
    Apr 2016
    Location
    CA
    Posts
    7,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    I made a paper cone and box taped it to the chuck before drilling the hole. I did not make a mess of oil all over my driveway nor did the oil get all over my drill. The pan was removed from the truck and has been scrubbed clean using purple power. I put the pan back on the truck for the night. No need in keeping the pan off so critters, cats or anything else can get up in the transmission overnight while it’s uncovered.

    I thought about getting a stepped drill bit right about the time Harbor Freight was closing. That will have to wait until they open back up in the morning. The nut will be welded to the pan on the table. I believe if I go slow spot welding it I shouldn’t have to worry too much about warping. I can always clamp it to the table as I usually do with all my projects to stave off excess warpage. I like the idea of welding the nut to the inside of the pan as this would be less prone to being knocked off from rocks etc if/when I do finally get around to wheeling it. However as pointed out getting a good weld all the way around the nut might prove to be a challenge.

    I believe the pan is covered with a galvanized coating. Will that effect the ability to get good penetration with out too much heat or burning holes through the pan? I always tend to procrastinate projects like this because of all the unanswered questions I conjure up from my lack of experience.

    Name:  20200925_193145.jpg
Views: 565
Size:  76.7 KBName:  20200925_193020.jpg
Views: 563
Size:  38.7 KB
    Last edited by N2 Welding; 09-26-2020 at 04:32 AM.
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  19. Likes ronsii liked this post
  20. #12
    Join Date
    Sep 2011
    Location
    Southern Indiana
    Posts
    264
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    I’d do the coupling and plug mla2ofus suggested.
    I’d also build a skid plate to protect the pan while off-roading
    Safety 3rd
    Gump

  21. Likes N2 Welding liked this post
  22. #13
    Join Date
    Sep 2013
    Location
    central Wis.
    Posts
    4,980
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Go to the auto parts store and ask for a transmission drain plug kit. B&M makes a good one for 10$ or so.

  23. Likes mcspeed, N2 Welding liked this post
  24. #14
    Join Date
    Apr 2016
    Location
    CA
    Posts
    7,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Quote Originally Posted by M J D View Post
    Go to the auto parts store and ask for a transmission drain plug kit. B&M makes a good one for 10$ or so.
    Both autozone and Oreileys had young kids that had to ask other employees that all said “no we don’t have anything like that”. I got tired of asking around at the auto parts stores.
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  25. Likes ronsii liked this post
  26. #15
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    8,810
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Quote Originally Posted by N2 Welding View Post
    Both autozone and Oreileys had young kids that had to ask other employees that all said “no we don’t have anything like that”. I got tired of asking around at the auto parts stores.
    Yep, pretty much what I've found around here with ANY parts stores... if you don't know THEIR part number and ALL other pertinent info about something you want it's a crapshoot if you're gonna walk out of the place with it...

  27. Likes N2 Welding, 12V71 liked this post
  28. #16
    Join Date
    Sep 2013
    Location
    central Wis.
    Posts
    4,980
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    B&M 80250 or needa part 65128

  29. Likes N2 Welding liked this post
  30. #17
    Join Date
    Jan 2017
    Location
    Dallas, TX
    Posts
    52
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.




    Sent from my iPhone using Tapatalk

  31. Likes N2 Welding liked this post
  32. #18
    Join Date
    Mar 2011
    Posts
    207
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Before trying any welding It must be really Thorley cleaned. I took a cracked sump cover of a tractor
    into a welding and machine shop to get welded. They didn't want to do it. Said it has been soaked in oil all its life
    And could never be properly cleaned. But of course the tractor sump cover was a lot heavier than your cover.
    They advised to try a hot pressure washer

  33. #19
    Join Date
    Jun 2012
    Location
    Sebeka and Bemidji MN
    Posts
    14,650
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Quote Originally Posted by Josey View Post
    Before trying any welding It must be really Thorley cleaned. I took a cracked sump cover of a tractor
    into a welding and machine shop to get welded. They didn't want to do it. Said it has been soaked in oil all its life
    And could never be properly cleaned. But of course the tractor sump cover was a lot heavier than your cover.
    They advised to try a hot pressure washer
    ...that's weird, I've welded a bunch of stuff that had been in oil while in use.
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

    Airco 300 - Syncro 350
    Invertec v250-s
    Thermal Arc 161 and 300
    MM210
    Dialarc
    Tried being normal once, didn't take....I think it was a Tuesday.

  34. #20
    Join Date
    Apr 2016
    Location
    CA
    Posts
    7,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    I planned on cleaning it thoroughly with Acetone prior to welding.

    Here is the nut / washers / bolt I paid $2.00 for thinking I could use in case I could not come up with A drain plug kit like the B & M trans drain plug kit.

    This is a 1/2" x 20 fine thread set I got for the project.

    The idea was to sandwich the pan between the two washers and snug it up tight then weld it in place. Maybe use some RTV after its welded so I dont have to worry about leaks.

    Name:  20200926_083134.jpg
Views: 517
Size:  57.8 KBName:  20200926_083140.jpg
Views: 517
Size:  53.9 KBName:  20200926_083126.jpg
Views: 521
Size:  52.1 KB
    Last edited by N2 Welding; 09-26-2020 at 12:47 PM.
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  35. #21
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    8,810
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    So... are you welding the nut on the inside of the pan? if so then all you need is a nylon washer to seal the bolt.... maybe...

  36. #22
    Join Date
    Apr 2016
    Location
    CA
    Posts
    7,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Quote Originally Posted by ronsii View Post
    So... are you welding the nut on the inside of the pan? if so then all you need is a nylon washer to seal the bolt.... maybe...
    Not sure yet. I found a Dorman drain plug kit at Oriley’s I’d have to pay and pick up via will call at the Stockton warehouse. It’s only $6.00 but has the plastic washers. Thinking I would like to replace the washers with aluminum or copper crush washers but don’t know where to get those. I’m also thinking the nut and bolt will be more heavy duty than the drain plug kits sold at the auto parts stores.

    decisions decisions decisions.

    https://www.oreillyauto.com/detail/b.../65128/4529396
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  37. Likes ronsii liked this post
  38. #23
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    8,810
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Quote Originally Posted by N2 Welding View Post
    Not sure yet. I found a Dorman drain plug kit at Oriley’s I’d have to pay and pick up via will call at the Stockton warehouse. It’s only $6.00 but has the plastic washers. Thinking I would like to replace the washers with aluminum or copper crush washers but don’t know where to get those. I’m also thinking the nut and bolt will be more heavy duty than the drain plug kits sold at the auto parts stores.

    decisions decisions decisions.

    https://www.oreillyauto.com/detail/b.../65128/4529396
    depending on the size HF sells the copper washer kits( I have a few ) otherwise I think NAPA usually sells copper washers for brake line connections but they probably want more for one than the whole HF kit

  39. Likes N2 Welding liked this post
  40. #24
    Join Date
    Apr 2016
    Location
    CA
    Posts
    7,193
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    Quote Originally Posted by ronsii View Post
    depending on the size HF sells the copper washer kits( I have a few ) otherwise I think NAPA usually sells copper washers for brake line connections but they probably want more for one than the whole HF kit
    Thanks and yeah it figures HF would be cheaper. I’ll ask while I’m at Napa getting the 5 gallon bucket of transmission fluid. Shoot I still need a new filter and pan gasket.

    I had planned on just reusing the fluid that was drained out. That is why I cleaned the oil pan prior to drilling the drain hole. I emptied the metal bits from the big green oil drain pan before pulling the drill bit out and letting the oil drain. I still have yet to drain the torque converter to see if it was low on fluid.
    Last edited by N2 Welding; 09-26-2020 at 01:59 PM.
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  41. Likes ronsii liked this post
  42. #25
    Join Date
    Jun 2017
    Location
    AJO, ARIZONA
    Posts
    3,446
    Post Thanks / Like

    Re: Project weld a nut to the Transmission pan to add a drain bolt.

    I've used the drain plug kits on a few transmissions, the bolt is fairly thin & can split at the root of a thread if not careful. You also have the thickness of the nut inside that prevents complete draining, I finally started brazing a nut on the outside & preferred that, just make sure you check whatever you use for a plug to make sure it seats flat & will seal as I have seen nuts that weren't threaded straight, or use a pipe fitting or coupling. On thin steel a step drill is always my preferred since it won't grab.
    Last edited by CAVEMANN; 09-26-2020 at 02:03 PM.
    NRA LIFE MEMBER
    UNITWELD 175 AMP 3 IN1 DC MIG/STICK/TIG
    MIDSTATES 300 AMP AC MACHINE
    GOD BLESS AMERICA!
    “Freedom is never more than one generation away from extinction.
    We didn’t pass it to our children in the bloodstream".
    RONALD REAGAN

  43. Likes N2 Welding, ronsii, 12V71 liked this post

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Page generated in 1,607,004,550.72656 seconds with 13 queries