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#59886 05/01/2006 12:33 AM | Joined: Feb 2006 Posts: 222 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 222 | Hi All,
My 1951 3600 has a section of frame rail that is badly rusted. There is a section about a foot or foot and a half long in front of the right rear wheel that needs to be repaired. The bottom flange of the rail is about 80% gone, the vertical portion is okay except at the very bottom the the top flange is good. It looks like water and salt layed in there and worked their magic. The rest of the frame is in excellent condition. How should this bad section be repaired? Is it best to weld flat stock over the bad portion on the bottom and side or is it better to cut that section of the frame out and look for a frame section? What do you think?
Rick | | |
#59887 05/01/2006 1:23 AM | Joined: Apr 2005 Posts: 641 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 641 | dont cut the frame just cut the rusted area out and graft new metal in | | |
#59888 05/01/2006 1:25 AM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | I would recommend cutting out the corroded section of the bottom flange. Weld in a patch, and grind the welds on the inside flat. Then weld a doubler on the inside of the frame, going a few inches past each end of the patch, if possible. I'm assuming this is in a straight section, not where the frame humps up to go over the rear end. If it's in the curve, the fix will work, but it's a lot harder to do. I would do the welding with a stick for best penetration.
Fred
52 3600
69 C-10
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#59889 05/01/2006 1:34 AM | Joined: Apr 2006 Posts: 18 Apprentice | | Apprentice Joined: Apr 2006 Posts: 18 | Hey rick, I belive the proper repair would be to trim your frame rail back far enough to get back into the proper thickness of metal and trim it up nice and square. Then make a piece from the proper guage metal and butt weld it with either a mig or stick weld, whichever you prefer. Good luck! | | |
#59890 05/01/2006 2:24 AM | Joined: Dec 2005 Posts: 324 Member | | Member Joined: Dec 2005 Posts: 324 | if you don't cut out all the rust it will keep rusting. i agree with bumperbob, but would lay some plate to reinforce the weld joint.
"It ain't a truck if you can't hose out the cab."
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#59891 05/01/2006 5:39 AM | Joined: Oct 2005 Posts: 4,249 "Hey! I sound like Darth Vader!! | | "Hey! I sound like Darth Vader!! Joined: Oct 2005 Posts: 4,249 | I would cut out the old section or part. After the repair was done I would box the section. | | |
#59892 05/01/2006 10:17 PM | Joined: Feb 2006 Posts: 222 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 222 | Thanks everyone. You all said it is necessary to cut out the rust. Will do. I liked the idea of boxing it when I am done to give additional strength. I was suprised that no one said to make vertical cuts and cut out a section. I really didn't want to do that and I am happy no one advocated doing it! It is a 3/4 ton so I will mike the thickness and look for the necessary steel. Thanks
Rick in VA | | |
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