M151A1 begining of new project

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Hell On Wheels
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Re: M151A1 begining of new project

Post by Hell On Wheels » Thu Jan 26, 2023 5:37 am

Hello Rick, yes I did the spot weld technique moving back and forth method and with a good miller welder. It’s my lack of experience is the real problem because some areas came out real good and others I blobbed welded then some area’s burned through. I was thinking for a minute some parts of the original metal was thinner than others. You think maybe the metal may have been rusted on the back where I can’t see would create the burn through?

Before: Image
Before: Image
Look at this picture how I creted blobs. On the lower left is a small burn through.
Image

Before: Image
Image
I realize the pictures are two differnt locations but I didnt take pictures all the time. But the lack of experince is the same across everything Im doing.
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

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Re: M151A1 begining of new project

Post by lpcoating » Thu Jan 26, 2023 6:32 am

If you look at my A1 restoration thread on the 838 you will find a lot of pictures of how I went about the body panel replacements. Might be helpful. That's assuming photobucket didn't remove my pictures. I keep getting notices from them that they are going to delete my account.

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Re: M151A1 begining of new project

Post by Hell On Wheels » Thu Jan 26, 2023 7:08 am

Send me the link
Robert

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Re: M151A1 begining of new project

Post by Rickf » Thu Jan 26, 2023 8:36 am

Pretty sure those Photobucket removal things are spam. I get them all the time and I have not had an account since they screwed everyone 10 years or more ago.

As far as the welding goes what I see is need of prep. If you have all of those jagged edges you will have problems. You want an even gap roughly the size of the welding wire you are using all the way around the patch. Make sure your tip and collet are clean so you get good gas flow and make sure your gas is flowing correctly. Make sure your tip and wire stickout is correct and you stay the correct amount back from the weld. I am not giving measurements for any of this because all welders are different. My tip is flush with my cup and I keep about a 1/4" of stickout on the wire and depending on circumstances I try to stay about 3/4 to 1" away from the weld. This is my machine and it tends to change with different steels and air conditions. You will learn to read what the welder is telling you. But proper prep is everything. You are not going to get decent welds on nasty cuts and uneven edges.

Guy puts down some fantastic welds, of coarse he has been doing it since he was a teenager.

What size wire are you using in the welder? And what brand is it? Chinese wire is a crapshoot, I have had good results with it and I have had spools that simply would not weld, period. Chinese meaning Harbor freight or Tractor supply.
1964 M151A1
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Re: M151A1 begining of new project

Post by Rickf » Thu Jan 26, 2023 8:43 am

Thinking about what you were saying about doing a lot of grinding on the welds. If you were using flap discs be aware that while they look like they do a good job they actually do a lot of damage. While they are cutting the weld down they are also cutting into the steel on the downhill side of the weld. The flap discs flex and when they go over the weld they bend down and cut down into the steel alongside the weld. This makes the body quite thin along the welds. Use hard grinding wheels and very little pressure to keep the heat to a minimum. Heat will warp.
1964 M151A1
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Re: M151A1 begining of new project

Post by Hell On Wheels » Thu Jan 26, 2023 9:23 am

Yes I cut my spot weld area into squared out before patching. Cutting out the jaggered edges. Then size up a patch I just didn’t take a picture of thoses steps. That’s a good point Rick in fact I just picked up a flex disk I was using that hard disc. That may explain why I burned though on some areas I probably grinded down to far on the edges that made the metal to thin to take the heat. That flex disc is much better I noticed the difference. I’m using a Hobart welder with .025 thickness wire with argon gas. Again very very or no real experience with welding. I did practice on the new pieces of metal which came out decent not perfect but spot welding is a real skill I dont claim to have that :oops: yikes 😬 I'm learning that as I go along. Thats why my project is backwards. I did all the mechanical work before hand than the body work, "welding" because thats my weakiness. Im a mechanic well I least claim to be. :mrgreen:
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

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Re: M151A1 begining of new project

Post by hambone » Thu Jan 26, 2023 1:01 pm

That's not straight argon is it? should be an argon/co2 mix or you can use straight co2 but the mix is better., 25-30chf

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Re: M151A1 begining of new project

Post by Hell On Wheels » Thu Jan 26, 2023 1:28 pm

Yes the mix one
Robert

1966 - M151A1
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Re: M151A1 begining of new project

Post by Rickf » Thu Jan 26, 2023 4:10 pm

Is the welder 110 or 220 volt? Hobart welders are not bad, they are American made.
I have a Lincon 180C commercial Mig welder, a Lincoln 200 amp AC/DC Tombstone stick welder and an AHP 200 amp TIG/stick welder. If it is made out of metal I can stick it together but the MIG gets the most use.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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Re: M151A1 begining of new project

Post by Hell On Wheels » Sun Jan 29, 2023 2:19 pm

Rick, the welder is running on 110 phase.

Hambone, in fact I just ran out of gas mix yesterday so Im going tomorrow to refill it. I'll take a look and make sure to get a good mix. I belive I was at the right mix because when I ordered it I told them to give what I needed to weld metal . I see if they can mix as you state.
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

Hell on Wheels https://www.youtube.com/channel/UCi_blL ... z7Ukw8gbHg

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Re: M151A1 begining of new project

Post by Hell On Wheels » Sun Jan 29, 2023 2:22 pm

Yesterday I primiered and sanded down the repairs and painted them, this is how they turned out.

Engine bay
Image
Image

floor panel and fire wall
Image

Image
Image

welded in the bow stop and drilled in the bolt holes and welded in the nuts on the bottm side.
Image
Last edited by Hell On Wheels on Sun Jan 29, 2023 2:37 pm, edited 1 time in total.
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

Hell on Wheels https://www.youtube.com/channel/UCi_blL ... z7Ukw8gbHg

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Re: M151A1 begining of new project

Post by Hell On Wheels » Sun Jan 29, 2023 2:32 pm

now for some more rust repairs. I tell you If I knew how much rust I would have probably passed on this MUTT :oops: Who knew, I didnt :oops: Anyway its what I do learn as I go.

This is still the passenger side.
Image

So I got a hammer and started to hammer to see how much would fall apart and load and behold allot. So I cut out what I belive is rusted through and statrted to clean out the rust in the channel.
Image

This is the first picture so far I started to wire brush the rust in the channel and will post some picture later as I progress. This side isnt as bad because the channel is pretty strong allot of surface rust. I have some chemical treatment and will spray allot of it after I clean as much as I can.

I have the complete patch underbody repair patch. Just preping it.
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

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Re: M151A1 begining of new project

Post by Rickf » Sun Jan 29, 2023 4:53 pm

The underbody repair kit is not made to go over top of the old channel. I know if fits over it but it is designed to have the old channel cut out completely and the new one welded in where the old one was. The weld flanges are further out so you have clean metal to weld to. That is why they are wider. If you put them over top of the old metal it will rust badly where they overlap.

I just noticed after looking again that you are working on the crossmember so that will be different. But keep what I said in mind if you need to get into the front to back channels.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
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Re: M151A1 begining of new project

Post by hambone » Sun Jan 29, 2023 7:12 pm

Hell On Wheels wrote:
Sun Jan 29, 2023 2:19 pm
Rick, the welder is running on 110 phase.

Hambone, in fact I just ran out of gas mix yesterday so Im going tomorrow to refill it. I'll take a look and make sure to get a good mix. I belive I was at the right mix because when I ordered it I told them to give what I needed to weld metal . I see if they can mix as you state.
Should be 75%Argon/25%CO2 Make sure you check your polarity on your machine, welding lead to (+) ground to (-), if you run flux cored, that polarity will be reversed. Make sure you're using .025 contact tips.

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Re: M151A1 begining of new project

Post by Hell On Wheels » Mon Jan 30, 2023 1:31 pm

That is what I have just filled the bottle then Ill double check the polarity. I think I may have set it orgianlly with flux then some time later added the gas. Will that give me a better smother weld is that why you mention that?
hambone wrote:
Sun Jan 29, 2023 7:12 pm
Hell On Wheels wrote:
Sun Jan 29, 2023 2:19 pm
Rick, the welder is running on 110 phase.

Hambone, in fact I just ran out of gas mix yesterday so Im going tomorrow to refill it. I'll take a look and make sure to get a good mix. I belive I was at the right mix because when I ordered it I told them to give what I needed to weld metal . I see if they can mix as you state.
Should be 75%Argon/25%CO2 Make sure you check your polarity on your machine, welding lead to (+) ground to (-), if you run flux cored, that polarity will be reversed. Make sure you're using .025 contact tips.
Robert

1966 - M151A1
1986 - M998
2007 - M1102
2009 - H3T

Hell on Wheels https://www.youtube.com/channel/UCi_blL ... z7Ukw8gbHg


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