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1947 Biederman Truck Fender Repairs
Tonight in the shop we started the repair work on the front fenders for the 1947 Biederman Truck, seen here for reference:
http://i5.photobucket.com/albums/y16...ure%203604.jpg The fenders are made using 16 gauge steel, so this may be a bit challenging when we get to blocking and wheeling patches for the fenders themselves. In the meantime (while still waiting for the new English wheel) let's get started on the inner fenders. The driver's side is the worst, with so much rotted away that we couldn't get accurate dimensions. The passenger side was in much better condition, but just shy of 70 years has taken its toll in adding some wavy distortion. So we'll remake both sides for a better match. http://i5.photobucket.com/albums/y16...ure%203644.jpg In order to get a more crisp bend on the 16 gauge steel, we used a tipping die in the Lennox to thin the metal at the line of the bend. http://i5.photobucket.com/albums/y16...ure%204254.jpg http://i5.photobucket.com/albums/y16...ure%204261.jpg http://i5.photobucket.com/albums/y16...ure%204265.jpg Bending in the Baileigh Magnetic Brake.. http://i5.photobucket.com/albums/y16...ure%204258.jpg http://i5.photobucket.com/albums/y16...ure%204267.jpg http://i5.photobucket.com/albums/y16...ure%204268.jpg http://i5.photobucket.com/albums/y16...ure%204270.jpg This detail shot shows how the thinning helps get a tighter bend.. http://i5.photobucket.com/albums/y16...ure%204260.jpg Next, we needed a profile template for the rear radius, so the kick shrinker is used on a folded 19 gauge strip to add the radius.. http://i5.photobucket.com/albums/y16...ure%204279.jpg http://i5.photobucket.com/albums/y16...ure%204278.jpg A flat folded strip works better than an angle as if you shrink too far in this direction..... http://i5.photobucket.com/albums/y16...ure%204280.jpg ......you can simply shrink the back half to reverse the effect without the need for changing to the stretching die.. http://i5.photobucket.com/albums/y16...ure%204281.jpg Now with an accurate pattern, we can use the template on the new inner fender.. http://i5.photobucket.com/albums/y16...ure%204282.jpg http://i5.photobucket.com/albums/y16...ure%204286.jpg All trimmed... http://i5.photobucket.com/albums/y16...ure%204290.jpg http://i5.photobucket.com/albums/y16...ure%204291.jpg With the new clamped to the old, we can see what the years of abuse has done.. http://i5.photobucket.com/albums/y16...ure%204292.jpg One down, one to go.. |
Looking forward to seeing you do this one Robert. :)
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This looks like a fun one. :D :rolleyes:
Jere |
Same here, keep it going :)
For me it still takes much time to shrink or stretch the folded strip to right radius but eventually I get it..more practise :D |
Today we got the second inner fender cut out, and took them both over for a test fit on the truck
http://i5.photobucket.com/albums/y16...ure%204303.jpg http://i5.photobucket.com/albums/y16...ure%204304.jpg The driver's side has a bolting plate in the middle of the frame for the steering box, so a relief notch was in order... http://i5.photobucket.com/albums/y16...ure%204306.jpg ....as well as a bit of trimming for some clearance so that the paint won't be chipped off on the first test drive. The fabrication of these parts are done, and we hope to pick up the Tommasini Wheeling Machine soon so we can get started on the fender patches.. http://i5.photobucket.com/albums/y16...ure%204307.jpg http://i5.photobucket.com/albums/y16...ure%204308.jpg http://i5.photobucket.com/albums/y16...ure%204309.jpg |
Had a question about placement of the thinning groove, so I thought I'd post the results of the test sample...
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Here's the test from tonight. The 16 ga thickness measured out to about .057, at the "thinning" groove it was .053, so we lost about .004 in thickness, or less than 10%. Put the thinning groove on the outside for this bend, it tended to stretch the deformity back out again where it looks like it could be more readily cleaned up with a file.. http://i5.photobucket.com/albums/y16...ure%204337.jpg http://i5.photobucket.com/albums/y16...ure%204338.jpg So where the bending process allowed the groove to stretch back out.... http://i5.photobucket.com/albums/y16...ure%204341.jpg ...it also gave us a wider radius than when the thinning was placed on the inside of the bend... http://i5.photobucket.com/albums/y16...ure%204342.jpg So I'd say to use placement based on if a tighter radius is needed or whether you need it dressed out. Given our original intent was a tighter/sharper radius, I'd place the thinning inside the bend to support that.. |
John's getting ready for engine start ceremonies, so I guess I need to get off my duff here. To help out in that regard, next we'll fabricate the battery tray which I don't believe came with the truck when John got it. Here's the best we have for a pattern:
http://i5.photobucket.com/albums/y16...ure%204646.jpg The hold down bracket for the prescribed Group 4 battery was with the truck, so we did some test fitting with the inner fender in place. It is a bit cramped for space, and John expressed concern of the availability of the Group 4 battery. Most local sources only carry the Group 1 in stock, which would also be a better fit.. So out with the old... http://i5.photobucket.com/albums/y16...ure%204644.jpg I did miss getting in the flat pictures, but here is the freshly folded and welded hold down bracket for the new battery size. http://i5.photobucket.com/albums/y16...ure%204639.jpg http://i5.photobucket.com/albums/y16...ure%204640.jpg All trimmed and prepped for paint.. http://i5.photobucket.com/albums/y16...ure%204641.jpg http://i5.photobucket.com/albums/y16...ure%204642.jpg Comparing the new to the old... http://i5.photobucket.com/albums/y16...ure%204645.jpg Next will be the new battery tray. |
Nice , Robert. I look forward to all your posts.
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Thanks Will!
...and now for the battery tray, shown here cut to size and sides folded up... http://i5.photobucket.com/albums/y16...ure%204650.jpg http://i5.photobucket.com/albums/y16...ure%204651.jpg For the end folds, the cut was started using a .035 cutoff wheel.. http://i5.photobucket.com/albums/y16...ure%204652.jpg ...and our trusty jig saw again... http://i5.photobucket.com/albums/y16...ure%204653.jpg http://i5.photobucket.com/albums/y16...ure%204654.jpg http://i5.photobucket.com/albums/y16...ure%204656.jpg http://i5.photobucket.com/albums/y16...ure%204658.jpg Both ends complete, and frame holes have been piloted. Once checked to the hole spacing on the frame they can be drilled out for the 3/8 bolts. http://i5.photobucket.com/albums/y16...ure%204659.jpg http://i5.photobucket.com/albums/y16...ure%204661.jpg |
Nice job Robert thanks for taken the time to showus.
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Thanks Scott!
More progress on the Biederman fenders.. With Kyle on vacation I was shorthanded in the shop so John (the owner) came by and lent a hand. First step was to remove the inner fender to see what we had to work with, added some 1/8 holes to use later for clecos in putting things back together.. http://i5.photobucket.com/albums/y16...ure%204723.jpg The front of the fender bolts to the bumper filler panel, and the rear bolts to the running board. These have a difference in height of 13-3/4, so some blocks were screwed together to hold the fender in correct placement while we worked. http://i5.photobucket.com/albums/y16...ure%204724.jpg The inner is getting replaced so the spot welds were ground out for removal. http://i5.photobucket.com/albums/y16...ure%204727.jpg Once removed, we found more pitting and damage than we originally thought was there, so now lets make this new as well.. http://i5.photobucket.com/albums/y16...ure%204728.jpg http://i5.photobucket.com/albums/y16...ure%204730.jpg New piece is cut out and the Wheeling machine with the go kart slick is used to add the correct radius.. http://i5.photobucket.com/albums/y16...ure%204732.jpg http://i5.photobucket.com/albums/y16...ure%204734.jpg Then the flange bend line is marked/thinned using a tipping die in the Lennox like we did for the inner panels we made.. http://i5.photobucket.com/albums/y16...ure%204253.jpg Then a tipping die and Skateboard wheel in the bead roller is used to make the initial fold on the marked line http://i5.photobucket.com/albums/y16...icture1081.jpg and finished up with a Step die so we could use it as a backstop http://i5.photobucket.com/albums/y16...Picture059.jpg The Erco 1447 with stretcher dies was used to stretch the flange in between tipping sessions. All done, matches the fender contour, we'll get the other side folded down next time.. http://i5.photobucket.com/albums/y16...ure%204736.jpg |
Looking good there Robert. :)
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Here's a quick video to show how the radius for the filler panel was done..
https://www.youtube.com/watch?v=ZnCTqLZg9lg With the flanges turned both directions.... http://i5.photobucket.com/albums/y16...ure%204737.jpg Looking at the rear of the fender that was adjacent to the cab, we found flat areas that seem to indicate some rubbing was occurring. So while we were fabricating the filler panel, we added about 1/8" to shove the fender outward away from the cab. http://i5.photobucket.com/albums/y16...ure%204738.jpg http://i5.photobucket.com/albums/y16...ure%204739.jpg http://i5.photobucket.com/albums/y16...ure%204740.jpg http://i5.photobucket.com/albums/y16...ure%204741.jpg http://i5.photobucket.com/albums/y16...ure%204742.jpg https://www.youtube.com/watch?v=4mZTMi3VMr4 |
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Which anvil did you use to make it? Peter |
Peter, so far the 12" and the 24", the 4" in a couple spots on the corners. I don't see anywhere near the lines with these full radius anvils as I did with the flats I had in the other machine. Very pleased thus far. The cast machine is showing the 16 gauge who's boss!
For reference, here's some of the lines we were getting at last years class using the anvils with flats on a fabricated steel machine... http://i5.photobucket.com/albums/y16...ure%203214.jpg http://i5.photobucket.com/albums/y16...ure%203219.jpg |
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Peter PS question.....;)... where you able to wheel 1.6 with the other machine?? |
Never tried it on that one, but I would venture it wouldn't have done so as quickly as it did on the cast machine.
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Peter |
Fender filler panel Number 2 is complete..
<A href="https://www.youtube.com/watch?v=7uvnvZTTEbs">https://www.youtube.com/watch?v=7uvnvZTTEbs Fender patch is getting closer... http://i5.photobucket.com/albums/y16...man/image.jpeg |
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