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hosocat
Samba Member
Joined: January 13, 2005
Posts: 109
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 Posted: Sun Jun 05, 2005 1:50 pm Post subject: Floor pan spot weld removal |
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I'm cutting out the floor pans on my 76 super, and I've run into a problem. When I try to chisel through the spot welds, I'm not making any progress. I'm using a pneumatic air chisel, and I place the flat chisel in between the pan and ledge at the spot weld and hammer away for several minutes, but can't seem to get the welds to break.
I've not done this type of body work before, so I don't know if I'm just a weakling, or if I'm doing something wrong. Should I be drilling out the spot welds before I use the pneumatic gun? I've viewed the "Bug Me" videos, and it seems like their welds come right apart with a pneumatic gun, and I don't think they predrilled the welds. Maybe I'm not using enough air pressure, but it sounds like enough (ie real rapid "brrpp" sounds, and I can feel the hammering against my hands).
Could anyone point me in the right direction? Thanks for your help. |
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Chubber
Samba Member
Joined: November 12, 2003
Posts: 334
Location: Clermont, Central Florida
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| Posted: Sun Jun 05, 2005 1:57 pm Post subject: Re: Floor pan spot weld removal |
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| hosocat wrote: |
I'm cutting out the floor pans on my 76 super, and I've run into a problem. When I try to chisel through the spot welds, I'm not making any progress. I'm using a pneumatic air chisel, and I place the flat chisel in between the pan and ledge at the spot weld and hammer away for several minutes, but can't seem to get the welds to break.
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Have you sharpened your chisels?
If the weld doens't break in a few seconds of hammering, you should think about drilling it, even if just a little, that will help with breaking it free.
_________________
Chubber
'71 Deluxe 7 Passenger Bus (Resto thread)
'72 Fastback
'74 Super Beetle Convertible (Sold) |
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toddyvol
Samba Member
Joined: September 25, 2004
Posts: 433
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Jowlz
The Anti-Purist
Joined: May 02, 2005
Posts: 2464
Location: Tunkhannock, PA
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| Posted: Sun Jun 05, 2005 7:22 pm Post subject: |
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| Drill them out. If you drill them right you should be able to pop them witha flathead screwdriver. I think I used slightly larger than 1/4" bit when I did mine. Good luck |
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HotRodedXXX
Samba Member
Joined: April 23, 2004
Posts: 205
Location: Pensacola, FL
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| Posted: Fri Jun 10, 2005 6:28 pm Post subject: |
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| One thing that helped me was taking a grinder and griding each weld. This weakens it up quite a bit. Made the chisel work go much smoother. |
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savage
Samba Member
Joined: June 22, 2004
Posts: 18
Location: Oxford, Ohio
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| Posted: Sat Jun 11, 2005 7:04 pm Post subject: |
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Some of the cheap air chisels available simply don't have enough power to cut anything, they just make a lot of noise. I am a former Snap-on dealer and I remember one customer that bought a cheapie air hammer and it wouldn't cut one spot weld. He bought one from me and one short burst and it was through.
Also, you have to make sure you're not cutting into the frame metal. That would slow it down.
Good luck!
Ed |
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