DIY: 5 minute ring nut removal tool | FerrariChat

DIY: 5 minute ring nut removal tool

Discussion in 'Technical Q&A' started by Nuvolari, Dec 18, 2010.

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  1. Nuvolari

    Nuvolari F1 Veteran
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    Sep 3, 2002
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    Rob C.
    When working on these cars we often come across those dreaded ring nuts. Sometimes they are easy to access and other times there is little space. For those instances when you have space I have come up with a 5 minute tool that can be easily made from an old adjustable wrench. The procedure is outlined here:

    http://dino246blog.blogspot.com/

    Also feel free to check the blog often for restoration tips, product reviews, and project progress.
     
  2. 2NA

    2NA F1 World Champ
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    Tim Keseluk
    I make mine out of cheap impact sockets. But it takes a lathe and a TIG welder to do it.
     
  3. finnerty

    finnerty F1 World Champ

    May 18, 2004
    10,406
    #3 finnerty, Dec 18, 2010
    Last edited: Dec 18, 2010
    Ditto.

    I made my set out of various sizes of schedule 80 steel tube and old 1/2-inch drive sockets. Cut the "pins" in one end of an appropriate diameter & length of tube with a vertical end mill, and then weld a socket into the other end.
     
  4. Nuvolari

    Nuvolari F1 Veteran
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    Yup the mill, lathe, and tig welder solution yields excellent results and long lasting tools but sometimes you just gotta take something apart fast which is where the 5 min solution comes in.
     
  5. finnerty

    finnerty F1 World Champ

    May 18, 2004
    10,406
    ROB ---

    I don't mean to crap on your idea --- it is nice for the small size, accessible ring nuts --- but, you won't be able to get a positive-enough grip on the larger ones, which are very highly torqued, with that approach. Also, your tool has no provision for using a torque wrench during re-installation --- and accurate torque values on nearly all of the ring nuts are fairly critical.
     
  6. Nuvolari

    Nuvolari F1 Veteran
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    Totally true and fully accepted. Again I re-iterate that this approach has limited usefulness however given it's extreme ease, it is a worthwhile consideration to the DIY enthusiast when the situation may call for it.
     
  7. dino clay

    dino clay Karting

    Oct 31, 2007
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    san mateo, cal
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    clay cavanaugh
    For the high torque nuts, press on a ring on the outside of the machined tubing or old socket, this keep you from bending the some what delicate engagement pins.

    dino clay
     
  8. Wade

    Wade Three Time F1 World Champ
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    #8 Wade, Dec 19, 2010
    Last edited by a moderator: Sep 7, 2017
    Great info and tips, thanks!

    I needed a ring nut socket a few years ago for the Mondial 8 and tried fabricating one. Ultimately, I paid the price for an AV-815.
    Image Unavailable, Please Login
     
  9. Peter

    Peter F1 Veteran
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    Dec 21, 2000
    6,440
    B.C., Canada
    Pressing on a ring isn't strong enough. When I made my ring nut tools, after I cut the teeth on the socket, I tack-welded the facing ends of the teeth to the ring (using a TIG machine. MIG is okay, but you'd have to dial down the wire speed to reduce spatter).
     
  10. fastradio

    fastradio F1 Rookie
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    Apr 26, 2006
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    David Feinberg
    Although this tool is not inexpensive, nor are any of the other similar factory tools for the different diameter ring nuts, the implication of improper torque or "rounding" the nibs on removal or re installation are far more costly. I have had the "pleasure" of removing damaged ring nuts on a timing cover recently, whereas two of the nibs were rounded away. This can be a very labor intense project...and with new timing gear shafts in the $1700-$2100 range, extreme care is required.

    Although my thought are likely not to be received well, these ring nuts really shouldn't be removed and re-torqued without the proper tools.
     
  11. Rifledriver

    Rifledriver Three Time F1 World Champ

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    Not to mention that these days the sockets are not all that expensive anyway.
     
  12. finnerty

    finnerty F1 World Champ

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    #12 finnerty, Dec 20, 2010
    Last edited: Dec 20, 2010
    That is true. Back when I made my own, the aftermarket tools from Baum, etc. weren't yet available, and the original Ferrari tools were outrageous, even used (like $600 each). So, making 5 different tools made more sense (and "c-e-n-t-s").

    If I were looking for the sockets today, I would simply buy the better, professionally made tools. I think they are what, $80-125 depending on size???......pretty fair and important, especially on those freaking transfer gear and axle nuts that are torqued down to about 200 lb-ft !!!
     
  13. Wade

    Wade Three Time F1 World Champ
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    All true. Unfortunately, I had to buy mine "pre-internet" from a Ferrari dealer who was willing to sell one; most would not. One socket wouldn't break the bank but trying to acquire the whole collection? That'd hurt ;)
     
  14. ernie

    ernie Two Time F1 World Champ
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    I love it, total Stooge tool!
     
  15. Buxton

    Buxton Formula Junior

    Oct 31, 2010
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    Pretty ghetto, like he didn't want to afford the correct tools.

    Seems more like a cheap advertizing so he can get traffic to his website.
     
  16. Nuvolari

    Nuvolari F1 Veteran
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    Actually Sherlock wrong on both counts.

    First the tip shown has nothing to do with cheaping out but rather presented an option for dis-assembly when the correct tool is not readily available. My DIY in no way damages the nut and allows for future re-assembly with the correct tool so that the proper torque may be applied. This then allows you to continue working instead of stopping everything and waiting for the right tool to arrive. It is a convenience tip not a substitute.

    Second, I have no commercial reason direct people to a hobby site I have put up. Check under my username. I am a site SPONSOR! Which means I have paid up to advertise all I like. No need for backroad promotion tricks here.
     
  17. 2NA

    2NA F1 World Champ
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    I think Buxton was off the mark here as well. The tip you offered was a good one (and a heck of a lot better than beating the ring nut off with a hammer and punch). It seems like there is always another size nut that shows up and not everyone has the proper socket. Sure it won't work every time and doesn't help getting things back together but it's another cheap, "quick & dirty" tool in the box for the times when it's needed.
     
  18. Nuvolari

    Nuvolari F1 Veteran
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    Thanks for the vote of confidence. It seems as though every time I turn around I find another one of these ring nuts of a different size. The cool thing about using the adjustable wrench method is that you can size it to different nuts. So far I have used the same tool on 3 different nuts (with zero damage to the nuts) as i have removed parts for plating. Now I have a cushion of time to make the proper tool for re-assembly.
     
  19. 2NA

    2NA F1 World Champ
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    Exactly what I was thinking.
     
  20. dino clay

    dino clay Karting

    Oct 31, 2007
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    san mateo, cal
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    clay cavanaugh
    The ring nut tool I made worked very well. The support ring gives ample strength for removing any and all nuts of this design. I removed the ones in the transmission with no trouble even after failing to see that some of them were left handed threads and I impact wrenched the hell out of them. I didn't take the time to heat treat them as they were tough enough unless you were using them every day.

    Like your innovation and creativity though.
     

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