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Tractor Fender Repair

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  • Tractor Fender Repair

    My friend and customer Rick’s fender on his tractor cracked on both sides in the rear. On the left side the sharp cracked edges protruded from the fender, so they were a cut hazard. The first picture shows the entire fender.

    1. Fender
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    I like to weld bright shiny metal so I cleaned up around the crack on the top and bottom using 1” stainless steel brushes in my Foredom shaft grinder.

    2. Removing paint with wire wheel
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    I used up about 4 wire wheels, because the bristles bend over and eventually break off the wheel as shown below. The edges of the cut didn’t line up and surface was compound so the smaller wheel was able reach all areas.

    3. Stainless steel brushes – worn and new
    Click image for larger version

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    I bought several bags containing 25 wire wheels from eBay for $6 per bag.

    4. Bag of wire wheels
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    Because of the compound surface I taped some Aluminum foil to the back side to trap the shielding gas.

    5. Aluminum foil taped to back side
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    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Lincoln 210 MP
    Clausing/Colchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

  • #2
    The next step was to us a picking hammer and a dolly to straighten out the cracked metal. Then I used a small c-clamp to force the edges of the crack into alignment. The last step was to spot MIG weld the edges together. I used my LE 31 MP with .025” wire to minimize burn through on the .048” thick fender.

    6. Cracked fender tack welded
    Click image for larger version  Name:	6. Cracked fender tack welded.jpg Views:	0 Size:	70.1 KB ID:	610724

    Next, I completely welded out the crack. Rick asked me to leave the weld reinforcement in the hopes that it would last longer before cracking.

    7. Left top welded out
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    8. Bottom left cleaned up
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    9. Bottom view all done
    Click image for larger version  Name:	9. Bottom view all done.jpg Views:	0 Size:	110.9 KB ID:	610727

    Last but not least I primed the area that I welded to prevent rust.

    10. Top primed
    Click image for larger version  Name:	10. Top primed.jpg Views:	0 Size:	121.3 KB ID:	610728 -Don
    Last edited by Don52; 09-18-2020, 11:21 AM.
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Lincoln 210 MP
    Clausing/Colchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

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