After all the welds were made and ground smooth, the arms were cross drilled for the pivot bolts. I used ½" grade 8 hardware (bolts and locknuts). The holes were drilled so we cound insert a pipe insert with a 1/2" i.d..(5/8" o.d.) I reamed out the pipe for a tight fit with no slack or wobble on the bolt. The pictures below show a test fit on the left side |
When both arms are installed onto the frame rails and the front flip kit is put in place for a test fit, adjustments will be made and cross arms could be added to tie the two arms together and add rigidity to the tilt unit. The two tilt arms were drilled with two holes in each mounting tab for 7/16" bolts (a total of 16 bolts) and a backing plate was cut from 3/16 plate (7" x 10") with holes drilled to match. When all of this is assembled and bolted together it gives a very secure mount and spreads the load over a total of 140 square inches instead of a few square inches that bolts with fender washers would provide. Fairlane cautions its customers about applying too much torque to the mounting bolts and crushing the fiberglass this will lead to failure at the mount point. Pull them down tightly but don't test the limits of your torque wrench. The air deflector of the Fairlane unit is extremely rigid and after mounting the plates to the hood and tilt arms, we were very satisfied that no other reinforcement or even cross arms would be necessary. The unit lifted easily from one side with one hand and showed very little flexing or bending. |
So now we have the hood mounted to the tilt arms and it's working quite smoothly in the 'manual' mode.. but remember the 'cool' part .it's got to do it in the 'automatic' mode to be cool
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To make the 'cool' part we're using a electric screw actuator. The unit was originally used to raise the cover on a computer plotter and operated at 24 volts dc. Running it at 12 volts dc gives a perfect raise speed and I would imagine the motor would last longer ??? Either way it works well for my purpose has plenty of torque and is very quiet. An added bonus to electric over hydraulic is the absence of pumps, hoses, reservoirs and leaks.. just two little #12 wires that will tuck nicely inside the frame rail. The original plan was to use two motors, but after we saw that one handled it easily.. we decided to KISS it. (keep it simple, stupid). |
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I'd like to say that it took complicated calculations with torque figures and curve radii and geometry and protractors and such to make the tilt unit work properly. But, it wasn't nearly so complex. We had two actuators. We ran one all the way out and one all the way in and by raising and lowering the hood a few times and making some measurements we came up with about where we wanted to put it. The actuator has 4" of travel, which doesn't seem like enough to raise this unit. And, to admit it I was concerned. We had already been discussing bellcranks and such during 'planning' sessions. |
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We welded a bolt temporarily to the frame and slid the actuator on the bolt. The pivot bracket was fabbed from a piece of 2" square tubing. I drilled the hole first then cut off the top side rounded the sides to make it pretty. It was too wide so I cut 3/8" out of the middle and welded it back together. Ground the welds down and I had a neat little pivot bracket. We attached it to the tilt arm where we thought it should go, tack welded it and ran a bolt thru the actuator push rod and the bracket. For the test we hooked up a 12 volt battery, tensed up, closed one eye and applied the power, poised to snatch the cables loose at the first sign or sound of trouble. It was totally uneventful. The hood rose slowly and smoothly and reached its forward travel just about 1/2" before the underside of the hood roll pan touched the frame rails. It was perfect !! and on the first try !!! Dave turned to me and said "Ain't we somethin ?" What we were was lucky !!! We played with it for a few minutes checking for binding and fit. We didn't change a thing. Welded everything in solid and stopped for the day If you look at the pictures closely you'll see that I still need to weld in a cover/fill plate for the frame rail. We had to torch off the corner of the Volare sub frame to have a flat place to mount the cylinder. We'll fill in that hole with 3/16" plate and dress it accordingly.
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This was a good stopping point it was late in the day and we both had other chores to complete.All that is left is mounting the bottom portion of the fenders to the body and doing the glass work to dress them out. A latching mechanism is planned for the center of the firewall. Something similar to a Caddy trunk latch or a Camaro rear deck latch that will gently pull down the hood when the latch hook contacts the latch. Limit switches will have to be added to cut the power to the actuator at full up and down limit, but that is electrical and not really a detail of 'mounting' the hood. The remaining work includes mounting a latch mechanism to the firewall and some type of hook on the hood that will contact the latch.. mounting the lower portions of the fenders to the cab and glassing in the top openings. |
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As I have mentioned early in the article, the hood was a quality product but the fit at the cowl left something to be desired. I never determined that it was a problem with the hood or with the cowl itself because I don't know who's molds are more accurate, Ford's or Fairlane's. I suspect that Ford's molds in the '50's were less that perfect and there were inconsistancies in cab shape from one stamping to another... either way the fit was poor. The Fairlane unit sat too high when the hood was closed. I talked to the Fairlane rep at the Supernationals last year and he suggested grinding the inner side of the hood down to fit... but no less than 3/16". I took a roll grinder on my electric drill and worked the inner lip across the width of the hood down to 3/16". That helped, but we still had a bad mismatch and there was no padding installed yet. There was also a problem with the fit on each side of the hood to the cab, the hood flaring out wider than the cab sides. So, we had three areas that needed work. The Fairlane rep suggested that the moldman might not have been as careful as he should have when he glued in the internal bracing. He told me I might try cutting the bracing loose, pulling the hood sides in more and regluing the brace... sounds easy enough... until you fit the hood to the cab, construct the hinges... and close it up over a 460 block !! There ain't a lot of room to work in there. We had to devise a different approach. The main problem with the fit on the horizontal portion of the hood was on each side... the center of the hood fit well, but the two sides were definately too high. |
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Originally we thought we would cut the entire cowl area down about 1/2"... but after closer inspection we decided that we'd leave the middle alone and work on the two sides of the horizontal area from the corners in about 18". Across the cowl there is a "rain gutter" for lack of a better term. It's a valley that runs across the cowl just in front of the air vent. In front of that is the raised ridge that the hood rests on. On the original hoods there was a piece of welting nailed (seriously, it's nailed) on here to prevent the hood from rubbing and sqeaking. With a plasma cutter we sliced thru the ridge of the cowl...around the front edge and in the wall of the valley. We left it attached at the center of the cowl and cut it across the edge. Then with a grinder we tapered the front edge down about 3/8". With a body hammer we brought the rear side of the cut (the front wall of the valley) down to match the height of the front edge. The only thing that remained was pulling the "cap" down and tack welding it in place. When we were happy with the fit.. we did the finish welding and it will be dressed with body filler later. Below are the pics of what we did... they should replace a lot of these words...
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When
we lowered the hood after this work it fit much better... the hood was lower then the cowl
as we hoped, by about 1/4".. which will leave room for adequate padding. Now we had
to work on the spread the hood had taken. The internal bracing makes the hood extremely stiff and it had to be releaved before we could do anything else. We tried the Fairlane reps suggestion and using a hacksaw blade sawed through the glue holding the bracing to the hood. It was aggrevating because the blade kept bending, but wasn't that difficult as the glue wasn't uniformly distributed and gave up pretty easily. Once the brace was loose the hood was much more flexible. We cut the center section out of the bracing and it will be glued back in when we get the hood in it's final shape. The hood was easier to bend then, but still wouldn't take the shape of the cowl on the left side. We sawed a few kerfs in the hood at the curve which releaved it even more and it layed down next to the cowl perfectly.
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The hood will be lowered and pulled in to match the shape of the
cowl...when we get the fit just right we'll glass in the
kerfs. After that has set we'll replace the center part of the brace and using a fast set
urethane glue, we'll reattach the internal bracing to the hood to hold its shape.
The next step will be attaching and finishing the side pieces of the fenders. More to
come.......
Ok, fast forward several years... lots of things got in the way of completeing this project but it's back on the table again. As I mentioned before there were serious problems with the fit of this fiberglass hood. I had several conversations with the original owners of Fairlane and a couple with the last owner and nothing was offered as a solution. Sadly Fairlane is out of business now.
I've inlisted the help of a fiberglass expert and an excellent body man who's helping get this thing finished. The rest of the truck for all purposes is ready for final blocking, primer and paint... if (no, when) we get this hood perfect we'll be all set. As mentioned above we removed all the bracing from the hood and we've got the gap at the hood edge/cowl acceptable. The next step was to add the lower fenders to the cab. But, to do this it was necessary to mount the bed, the rear fenders, the running boards and get all this in alignment so the front lower fenders cound be set in the proper place. With these pieces in the proper place we could attach the lower fenders to the cab to line up with the hood and still maintain the proper relationship to the running boards. We held them up in position and found a few more flaws in the fit. The edge of the fender (flange side) didn't match up with the cowl when it lined up with the hood... there was a gap between the fender and the cowl. We had to add filler to build up the edge of the lower fender to make it line up as it should. We made it fat and sanded it down utill we were happy with the fit, and then scribed a line on the cowl to mark their position. Then we drilled the fender flanges and marked the holes on the cab. In a couple of places the original fender mount holes were used, but in a couple we had to drill new holes. We added bolts, fender washers and nylock nuts and they were attached. This, like every other step in this process was time consuming, but we wanted a good fit and it was necessary. After the fit up was acceptable we discussed the final look some more and it was decided that the fender would look much better molded into the cab instead of the customary line that usually contained welting. Kitty hair was used as a base layer followed by regular fiberglass filler for the final coat... even under the fender where the seam was was smoothed some for a better appearance.
After both of the fenders were attached the next step was to fab/mount the cover plates for the top of the fenders... this isn't absolutely necessary but it does dress it up a little more instead of having the hole just hanging out there. Our first plan was to make the covers from fiberglass covered base board (cardboard) and glass them in and they looked fine... but when we were working on the matching plates for the hood we ran into some problems and scrapped that idea. Plan "B" was to fabricate them from metal. Quicker and easier... here's a shot of the fiberglass top plates in the fender holes We decided to leave the fiberglass plates in place and just install the metal plates over them. They will be dressed up pretty and you'll never know the difference, plus it was easier to do that than rip all the old stuff out and start from scratch. Our problem with the hood plates was that we didn't pay enough attention to the alignment of the plates in relationship to the hood itself. Originally we just made the lower fender plates and didn't give any thought to how they would line up with the hood plate... and where we had them is what kicked the hood plates out of alignment... we matched them to the fender plates. (hey, don't laugh, this the first attempt at this for both of us !) We were so concentrated on the fit up close that we never stepped back to see the overall... I walked up to the truck one day while we were working and noticed that the hood plates were sticking back toward the cab (badly ) when they should have been perpendicular to the hood side... The bad part is I didn't notice it until one side was completely finished. That's what made us decide to rip it out and use metal... one step forward..two back. To keep from making the same mistake twice we pulled alignment strings from one side of the hood to the other to maintain the correct angle and keep the two plates parallel.
Once we fabricated the plates to fit and curve of the hood we welded 90 degree tabs onto the back side in three places then screwed them onto the hood and bent them to align with the strings. The screws will be removed after the plates are glassed into the underside of the hood. Now that the hood plates were installed and aligned properly it was time to 'adjust' the fender plates to match them. (what we should have done in the first place. As I said we decided to leave the fiberglass plates and just put metal plates over them.. The fiberglass will only serve as a strengthening brace for the lower fender. Here's a pic of one of the lower plates being trial fit.
The next step was to add in filler metal around the metal plate to blend it into the fender and then glass it all to make it pretty.
This is about where we are now... the passenger side lower fender is ready and the first wipe of kitty hair is on the drivers side. We still have to work the hood plates.
We can't do much with the final alignment of the hood to the fenders and the cowl until we address the shape of the hood... or the profile matching the cowl and then the structure needed to keep it in that shape. In the first of the article you saw that we removed all the bracing because it was holding the hood in the wrong shape relative to the cowl. We've found a solution and pictures and words will come soon. And it's all thanks to another truck owner who has traveled this road and found the path for us to take... thanks, Terry !!
more to come...
and here it comes.... we had cussed and discussed the fit of the cowl until we were both frustrated and quit. We had to have something that absolutely held the shape of the hood so it matched the cowl shape and nothing we had tried worked. I was walking around the Supernationals in Pigeon Forge in 2012 and found a beautiful truck with a tilt hood (and bed) and of course looked at the hood first... He had installed a louvered Stainless Steel inner hood cover that really dressed it up but what I saw that really interested was a stiffener he added to the inside of the hood.. We discussed it at length and he had the same cowl fit problem and after a couple of attempts he came up with this... he determined the shape he needed from the cowl profile and cad designed and cut the shape into the stiffener metal... then added a top cap to mount it to the hood.
So, after discussing his design I asked if I could pay him to build one for me since he was set up to do it...He laughed and told me I couldn't afford him. It was a trial and error project. But he said he had another prototype he would give me and I could try it !!!!! Addresses swapped and a week later I'm screwing it inside my hood.
When we lowered the hood down to the cowl... it was a perfect fit !!!!! and the fender/hood edges lined up perfectly also... our problem was solved. There will be some dress up filler work to make it complete but the major hurdle was overcome... again THANK YOU, TERRY !!! That's what I love about this hobby... good folks that will help a guy out.... even a stranger. So, our hood is FINALLY matching up with the cowl, the filler pieces for the hood and lower fender are complete... other than sanding and final filler/blocking... there is still some filler work needed on the inside of the lower fenders... and the whole inside of the hood will be ground down, filled and made to be slick and pretty... (that's gonna be a chore). We blew the whole truck apart again and started working on the firewall, kick panel and cab bottom... all the misc holes will be filled and a smooth firewall will look fine. The kickpanel and cab bottom were coated with "Monsterliner" undercoating in the appropriate color... yellow
and the cab/hood will be ready for blocking and prime followed by more blocking and paint. Pictures below show my bodyman working away and the inside of the hood ready for hi-build primer
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This shows the inner side after the first coat of Slick Sand Primer. Still have the air dam and all those little skinny places that need hand sanding, but it's getting there... I will not admit to how many gallons of filler were applied and removed... I swept up a lot
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at this point it was off to the painters with the rest of the truck... |
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and here it is |
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kinda hard to see
the pretty ghost flames but they are there
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here's a little video of the hood comin down |
THIS HAS BEEN A LOOOOOONG HARD ROAD. Tilt hood owner wannabe's...beware. and you might notice the copyright date below... that's when this project began. |
Copyright © 2001 John Niolon All International Rights Reserved. This document may not be copied or published without prior written consent of the author. This work was done by me and for me. I only ask that if you reproduce it give me credit for it and if you make money from it give me my percentage. Since I have no way of knowing your level of competence, welding or cutting skills or mechanical ability .there are no guaranties or warranties either verbal, written or implied with this article. Pictures were made at different stages of construction and all parts in pictures may not be complete in each shot, but Ive tried to make the plans or drawings complete to the best of my ability. If you have questions or see mistakes or problems, let me know by e-mail and Ill make the corrections if possible.. Use these ideas at your own risk. Modify them at your discretion and to suit your purpose. Your mileage may vary . batteries not included . much assembly required . wait one hour after building to enter the water .additional charges may apply . not all applicants will qualify for advertised A.P.R. .for ages 10 to adult . side effects are comparable to placebos . Do not take drugs when building or operating this machinery...just say no !
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