Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum

Repairing Holes in Metal Parts

Welcome Guest, Log in or Register
Author 
Bob A

11-17-2000 18:04:51




Report to Moderator

I am currently restoring a John Deere 420c. There are many metal parts where the holes have been worn to the point where thay are oblong or on some cases twice the size of the original hole. What is the best procedure for repairing the holes? I was going to weld in a piece of metal and drill it out to the original size. The metal thickness on most of the parts is 1/8 inch or better.

Thanks

Bob A.

[Log in to Reply]   [No Email]
T_Bone

11-18-2000 17:21:02




Report to Moderator
 Re: Repairing Holes in Metal Parts in reply to Bob A, 11-17-2000 18:04:51  
Hi Bob, By the time the metal has elongated a hole the metal has fatigued and will resplit again if not braze welded. Heating a large area will stress releive the area and thats what brazing does, heat a large area coolling slowley. Welding with Mig or Stick will let the reparied weld area crack within a short time.

Even using a fill piece without brazing will have the same effect as the stress will travel a long distance. Use good old baling wire for a filler rod.

T_Bone

[Log in to Reply]  [No Email]
Franz

11-18-2000 18:57:29




Report to Moderator
 Re: Re: Repairing Holes in Metal Parts in reply to T_Bone, 11-18-2000 17:21:02  
Back it up with a firebrick, place a carbon button the size of the hole you want to wind up with exactly where you want the hole to be, and weld to it with a MIG machine. If you don't have MIG, og with TIG. All else fails, use 7018 rod in a stinger.



[Log in to Reply]  [No Email]
Greg

11-17-2000 18:33:34




Report to Moderator
 Re: Repairing Holes in Metal Parts in reply to Bob A, 11-17-2000 18:04:51  
One way I fill these types of holes is to clamp a solid copper backing plate to weld against. The weldment will not adhere to the copper. The weldment is hard to drill, but makes a nice looking and strong repair. I generally will use a die grinder with a carbide burr if I need to size up the holes.

The tabs on large fuses may be a good source for smaller copper plates.

HTH



[Log in to Reply]  [No Email]
Bill D

11-18-2000 05:55:18




Report to Moderator
 Re: Re: Repairing Holes in Metal Parts in reply to Greg, 11-17-2000 18:33:34  
There should be a way to temper the weld area maybe Steve will sign on and give his usual good advise



[Log in to Reply]  [No Email]
Greg

11-18-2000 06:42:14




Report to Moderator
 Re: Re: Re: Repairing Holes in Metal Parts in reply to Bill D, 11-18-2000 05:55:18  
Or Fred OH, as this is MIG country. *grin*



[Log in to Reply]  [No Email]
Fred OH

11-20-2000 09:45:12




Report to Moderator
 Re: Re: Re: Re: Repairing Holes in Metal Parts in reply to Greg, 11-18-2000 06:42:14  
Greg, think I'll just get in here and tell you that I've done a blue million of 'em and never owned a mig welder. (grin) As far as I'm concerned, the right ways have been given but the mig would be my last choice as it is the most expensive way to weld. If you're a real good welder, the only thing you generally need a mig rig for is thin stuff like body work and production work. There, I kicked them again so you grin. I generally turn a piece of carbon in the lathe a few thousandths of an inch smaller than original hole but with a head left on it to use as a backup. Push it up against the unworn part and fill the gap with brass. If it's a clevis type end, do the same thing with the other side and run a reamer through it to bring back to original size. If it doesn't have to look original, sometimes I saw off each side and weld on flat iron and then drill to size and it's like new, done quicker and cheaper. Now if Steve gets in here, you just remember that JB Weld won't work on this one. (grin again) Happy Turkey Day (or do mig welders eat that 'ol dead bird)? L8R----Fred OH

[Log in to Reply]  [No Email]
BFO

11-20-2000 17:07:49




Report to Moderator
 Re: Re: Re: Re: Re: Repairing Holes in Metal Parts in reply to Fred OH, 11-20-2000 09:45:12  
Naw, mig welders only eat TV dinners, push a button and it's done ;-)



[Log in to Reply]  [No Email]
welder Brian

11-19-2000 19:44:58




Report to Moderator
 Re: Re: Re: Re: Repairing Holes in Metal Parts in reply to Greg, 11-18-2000 06:42:14  
Re: elongated holes should be ground out,welded up and drilled out or ground out with what ever works. lets remember it's not a NASA satalite



[Log in to Reply]  [No Email]
fredb

11-20-2000 09:53:36




Report to Moderator
 Re: Re: Re: Re: Re: Repairing Holes in Metal Parts in reply to welder Brian, 11-19-2000 19:44:58  
You must be one of those people who lets everyone know you think you are a welder by calling yourself that.

It's not rocket science, but you need to do the job correctly so that you won't have a wreck somewhere down the line.

Greg had a good point about using copper behind the weld to keep it from sticking. Good way to do it.

Maybe I'm overreacting, but when I see someone call himself a profession, such as welder, it makes me wonder.

[Log in to Reply]  [No Email]
SLAG

11-20-2000 21:07:18




Report to Moderator
 Re: Re: Re: Re: Re: Re: Repairing Holes in Metal Parts in reply to fredb, 11-20-2000 09:53:36  
Hey fred cool it! you sound like you like to insult people, go away! besides he's right it aint a rocket ship



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy