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Thread: Footwell replacement, spot weld drill size?

  1. 28th March 2009, 11:18 AM #1
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    Andy-M
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    Footwell replacement, spot weld drill size?

    Hi all

    I am about to tackle replacing the footwells in "Mongrel" (2A 109 5door) .

    I have tried searching but can't find what size spot weld drill to use. I am sure I read about it in a post some time ago but am unable to find it again.

    Any tips for replacement and drill size would be great. There seems to be a truck load of spot welds in the footwell section!



    Cheers Andy.
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  2. 28th March 2009, 03:43 PM #2
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    4bee
    4bee is offline Cynical Moi?
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    I don't know about size, but there is a special spot weld drill you can purchase. Is this what you mean?
    It fits over the spot & not actually on it so it can be centred. It sounds "tube like" from what I can recall. 1/4" diameter rings a bell.
    I'm sure someone here will know for sure.

    Google for spot weld removal tool/drill.
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  3. 28th March 2009, 05:50 PM #3
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    a bit rougher than you blokes,
    i'd use a drill straight thru the spot weld, or a chisel!!
    after all it isn't an aeroplane, and it's just a bit of tin to fix it all.
    but i do simplify things when i don't have to follow the rules and it won't kill someone.
    Safe Travels
    harry
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  4. 29th March 2009, 10:13 AM #4
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    Andy-M
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    Thanks guys

    Harry, I have drilled straight through most of one side and it looks like there are holes all over the place. There is a lot of bloody welds there! Did you just mig over the holes when you welded it in ?

    I am not going for any you beaut finish on Mongrel, as the vehicle is a mix match of different parts anyway. I intend to make it a basic 5 door Defender substitute, to do a bit of camping and launch the boat.

    I would like a shorty but I can't go past the galvo chassis under Mongrel.

    Any pics or links to your footwell job Harry.


    Cheers Andy.
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  5. 29th March 2009, 11:32 AM #5
    Bigbjorn
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    Quote Originally Posted by 4bee View Post
    I don't know about size, but there is a special spot weld drill you can purchase. Is this what you mean?
    It fits over the spot & not actually on it so it can be centred. It sounds "tube like" from what I can recall. 1/4" diameter rings a bell.
    I'm sure someone here will know for sure.

    Google for spot weld removal tool/drill.
    P&N make them. Ask a stockist for "Cobalt Spot Weld Drills". Available in 8.0mm and 6.5mm diameters in a variety of lengths from 38.0mm to 77.0mm. They have a centre point for location and the cutting edges cut the outside of the weld leaving a round hole on one panel. Not cheap and near impossible to resharpen without a special jig or a tool and cutter grinder.
    URSUSMAJOR
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