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Thread: Fan Shroud

  1. #1
    Join Date
    Dec 2006
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    Mill Creek
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    Fan Shroud

    I finished making my fan shroud and thought I would post how I did it and what it looks like. Since I don't know how to post pictures with words attached I will post a few attachments to this.

    First picture shows the framework that I wrapped the fleece around. As you can see, I added about an inch to the lower panel. I screwed up the first shroud because I made it too small and the fan would touch. The fan I have is a 17" so I made the circular board 18" diameter. The shroud is 2 1/2" deep.

    Second picture is the aluminum foil applied to the frame. Fiberglas resin won't stick to that. Forget the foil and it will never come off.

    Third pic is me stapling the fleece to the frame.

    Fourth shows the fleece stapled. You have to pull the fleece down tight to form to the frame mold.

    Last pic is the resin and hardener. Bought them at Lowes. About half the price of an auto shop store.
    Attached Images Attached Images
    Larry Smith
    1964 Futura
    347 stroker



  2. #2
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    Fan Shroud

    Having trouble posting more pics and descriptions. Getting a message saying the site is having problems. I will add more later today. Larry
    Larry Smith
    1964 Futura
    347 stroker



  3. #3
    Ooh! Can't wait to see this. Gonna wanna do the same thing when I put my V8 in! Hope you can post the pictures.
    Roger Moore

    63 "Flarechero"
    powered by: 347ci stroker | Tremec T5 | 8" 3:45 TracLoc rear



  4. #4
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    Fan Shroud

    Trying again for the next set.

    Picture one is just showing that I mixed up 8 ounces of resin at a time. Any more and it will start to get too tacky. For 8 ozs. you are supposed to put in 80 drops of hardener, but I use a little more to make sure it sets up in our cool/damp weather, which explains why it gets tacky quicker.

    2nd pic. I am putting a liberal coating of resin on the fleece. Put enough to soak it.

    3rd pic. after the resin is dry on the fleece.

    4th pic. I am sanding with 36 grit so the next resin and matting process will stick. The resin can seperate at layers if you don't sand it.

    5th pic. shows that I have applied 2 layers of fiberglas matting. You can buy all this at Lowes. I use matting when I am dealing with curves. The cloth works well on flat surfaces but is harder to get it to lay in the curves.

    More to come.
    Attached Images Attached Images
    Larry Smith
    1964 Futura
    347 stroker



  5. #5
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    Fan Shroud

    More.........

    First Picture I have cut off the excess and sanded the outside to get a closer shape to what I want.

    2nd Pic. I removed the screws holding the wood parts together and popped out the round part. Then removed the flat section of frame. It comes apart easily.

    3rd Pic. Now I applied 2 layers of fiberglas cloth to the inside of the shroud. Used cloth on the straight areas and matting in the corners. Be sure to check your part after it dries to make sure it hasn't warped too much. During the curing process it gets hot and can move around. If it does warp too much you can apply a hot mix of resin (using more hardener) and hold it into a better position as it dries.

    4th Pic. I put a coating of body filler on the shroud and before it set up completely I rough cut it with my cheese grater tool to get off most of the excess.

    5th Pic. I continued to sand the shroud, added more body filler as needed and sanded and sanded. Then painted it with primer.

    You need to plan as you go along to decide how you are going to attach the shroud to the radiator. I added 7" long brackets to each side of the radiator and then put two bolts through the sides of the shroud through those brackets. But each project may need different attachment solutions.

    First shroud that I made, I attached 4 small clips the the sides of the shroud with pop rivets then covered the clips on the shroud with fiberglas cloth to give it more strength. But, as I mentioned it was too small and hit the fan. So the clip idea wouldn't work the 2nd time around.
    Attached Images Attached Images
    Larry Smith
    1964 Futura
    347 stroker



  6. #6
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    Fan Shroud

    Last shroud update.

    This picture shows the shroud painted with semi-gloss engine paint and installed in the car. Test run was good.

    I solved three things with this shroud.

    1. I have been troubled by the thought that someone could stick their hands in the fan with the engine running. The fan is invisible when turning.

    2. It is supposed to keep the engine cooler. We'll see.

    3. I like the looks.

    Hope this helps and if you need any questions answered let me know. Larry
    Attached Images Attached Images
    Larry Smith
    1964 Futura
    347 stroker



  7. #7
    How did you attach it? Can't tell. Looks good though.
    Roger Moore

    63 "Flarechero"
    powered by: 347ci stroker | Tremec T5 | 8" 3:45 TracLoc rear



  8. #8
    Join Date
    Aug 2009
    Location
    Sequim
    Posts
    2,117
    My question is can you make me one. Nice work.

  9. #9
    Awesome job Larry! It certainly looks like it should help. Now we just need a nice hot day to test it!

    Kenny Likins
    Ballard, Seattle, WA
    www.redfalken.com

    `62 Tudor Sedan (`69 200, C4, 8-inch 4-lug 2.79 rearend, Duraspark II, MSD, Weber 32/36 DGEV)

  10. #10
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    Mill Creek
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    Fan Shroud

    To answer the question about how I installed it, I bolted to 7" long "L" angles to the edges of the radiator then put 2 bolts through the sides of the shroud through those angles. Here are a couple of pictures that might help.

    The 1st pic is looking at the inside of the shroud. Hopefully the angle shows up and the 2 bolts through the sides.

    The 2nd pic is from the passenger side of the shroud. It might help showing the 2 bolts and it also shows the flat plate that I installed where I cut the shroud in half so that I could get it into the car.
    Attached Images Attached Images
    Larry Smith
    1964 Futura
    347 stroker



  11. #11
    Join Date
    Oct 2006
    Location
    Seattle
    Posts
    1,430
    I would love to make a make a visor for the wagon someday... like the Aussies have. Looks like fiberglass may be the way to go. I'll ask for help when it moves up on my list.

    Jeff Watson
    Seattle, WA
    '63 Tudor Wagon (170 - 3 spd.)

  12. #12

    Fan Shroud

    Quote Originally Posted by BadBird View Post
    It is supposed to keep the engine cooler. We'll see.
    Hello, Larry.

    Did you see any difference in the engine temperature, either at idle or while driving?

    You must have had to take the fan off to install the shroud.

    Was it more difficult to reach the bolts to put the fan back on with the shroud in place?

    Does anyone have any experience with and/or opinions about the shrouds they sell at Mac's auto parts?

    Mac’s carries three shrouds:
    1. “This new ABS plastic is an improved version of the original. By increasing the depth from 2" to 3-1/2" we have been able to greatly increase airflow and therefore, cooling efficiency. Part #: 41-35706-1, Alt Part #: C3DZ-8146-DX for $79.95.”
    Fan Shroud - ABS Plastic - 260 & 289 V8.jpg

    2. Fan Shroud - Steel - 260 & 289 V8 Part #: 41-35705-1, Alt Part #: C3DZ-8146-D, OEM Part #: C3DZ-8146-D, $35.95, and
    Fan Shroud - Steel - 260 & 289 V8.jpg

    3. Fan Shroud - Steel - 260 & 289 V8 With A/C Part #: 41-35705-2, Alt Part #: C3DZ-8146-D, OEM Part #: C3DZ-8146-D, $35.95
    Fan Shroud - Steel - 260 & 289 V8 With AC.jpg

    The steel shrouds with and without AC look to be the same. They are the same price and have the same OEM numbers. I do not have AC, but I may add a unit in the future. My fan is one inch away from the radiator, so I will need to remove it to install any of these.

    Thanks, Dennis.
    Last edited by ew1usnr; May 8th, 2014 at 05:59 PM.
    Dennis Pierson
    Tampa, FL
    "The Wonder Falcon"

    '63 Futura Hardtop (260, Ford-O-Matic, bench seat)

  13. #13
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    Mill Creek
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    Fan Shroud

    Dennis, I can't categorically state that it has made the car run cooler. Just a little while earlier I installed a 4 core aluminum radiator because the car was overheating.
    Whether the radiator alone made all the difference, or if the shroud helped???
    I do know that it was recommended by almost everyone to add the shroud to help with cooling.
    It was important to also cover the fan to keep the hands of old dudes like myself from getting whacked off.
    If you have a shroud that you can buy, that fits, it would be a good investment. I know mine probably cost $5.00 since I already have a supply of fleece from my mother-in-law.
    Just like the rest of the car, I wanted to do it myself. I really enjoy these projects and have learned a lot doing them. Being retired makes it a lot easier to tackle, but if I was still working it would take a lot longer. If you count labor hours, which I don't, it is cheaper to buy it. Larry
    Larry Smith
    1964 Futura
    347 stroker



  14. #14
    Quote Originally Posted by BadBird View Post
    It was important to also cover the fan to keep the hands of old dudes like myself from getting whacked off.
    Hello, Larry.

    Thanks for the reply. From a safety perspective, I wonder why Ford painted the fan blade black when it was going into a black engine bay. It makes the whirling fan blade invisible.
    Dennis Pierson
    Tampa, FL
    "The Wonder Falcon"

    '63 Futura Hardtop (260, Ford-O-Matic, bench seat)

  15. #15
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    Fan Shroud

    My blade is chrome and is still invisible. I really worried about forgetting the car was running and sticking my hand in the way. It could still happen but the results now would be cuts and scratches instead of bad stuff.
    Larry Smith
    1964 Futura
    347 stroker



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