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Old 02-23-2011, 01:04 PM   #16
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Can I weld a truck frame with a MIG welder?


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I can make it look like it was never cracked but the problem is; it will not be an adequate repair. If your thought is to do this in an attempt to hide the problem and sell the vehicle: don't do it. It could cause you to not only be liable for the deception when it came time to look at rescinding the contract, it could also put you in a position of liability should that crack and subsequent repair fail and be the cause of an accident. God forbid a person would be injured. If that were to happen, there could be criminal as well as civil penalties involved.

I can't imagine an 86 vehicle looking all that sweet anyway so why a invisible repair is so important makes the intent a bit suspicious.
I'm not trying to hide anything. I just bought the truck actually. I'm using it as a work truck and I'm passionate about 73-87 Chevy and GMC trucks. I'm planning on restoring it, but I'm trying to figure out a way to restore it in a quality way. I have to repair the frame for this to happen.

Jesse

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Old 02-23-2011, 01:54 PM   #17
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Can I weld a truck frame with a MIG welder?


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Originally Posted by jpearson311 View Post
I'm not trying to hide anything. I just bought the truck actually. I'm using it as a work truck and I'm passionate about 73-87 Chevy and GMC trucks. I'm planning on restoring it, but I'm trying to figure out a way to restore it in a quality way. I have to repair the frame for this to happen.

Jesse
didn't mean to accuse if it isn't your intent. Just trying to impress how serious such an action could be.

as said, it is unlikely you will be able to make this an invisible repair and have it be a dependable repair. It cracked for a reason so unless that reason is corrected, simply welding the crack is not going to be an adequate repair.
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Old 02-23-2011, 02:08 PM   #18
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Can I weld a truck frame with a MIG welder?


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didn't mean to accuse if it isn't your intent. Just trying to impress how serious such an action could be.

as said, it is unlikely you will be able to make this an invisible repair and have it be a dependable repair. It cracked for a reason so unless that reason is corrected, simply welding the crack is not going to be an adequate repair.
No worries. Considering it's right in front of the rear bumper brace and the frame is pretty rusty, I'm thinking someone must have pulled a heavy trailer too much or something. Since the frame rail is a C shape, I'm thinking of taking a fish plate and putting it on the inside of the crack and then fill in the crack from the other side with a normal MIG welder. Then running a bead along the outside of the fish plate on the inside of the frame. After that, I'll grind down the outside of the frame smooth. That way it will look seamless, but the plate will be on the inside. What do you think?

Jesse
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Old 02-23-2011, 02:28 PM   #19
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Can I weld a truck frame with a MIG welder?


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What do you think?
Ayuh,... Short of replacing the frame rail, it might work Ok...

Btw,... Cut the fishplate in a diamond pattern, 'n do NOT weld the ends completely....
It'll keep the rails from crackin' at the ends of the fishplate...
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Old 02-23-2011, 02:31 PM   #20
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Can I weld a truck frame with a MIG welder?


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Ayuh,... Short of replacing the frame rail, it might work Ok...

Btw,... Cut the fishplate in a diamond pattern, 'n do NOT weld the ends completely....
It'll keep the rails from crackin' at the ends of the fishplate...
When you say the ends of the fish plate, you mean the points? Like the top, left, bottom and right sides of the diamond shape?

Jesse
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Old 02-23-2011, 05:40 PM   #21
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Can I weld a truck frame with a MIG welder?


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When you say the ends of the fish plate, you mean the points? Like the top, left, bottom and right sides of the diamond shape?

Jesse
Ayuh,... That's Correct,...
Leave an inch gap in the weld beads... At the Points...

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