Rivet removal

Discussion in '40- & 55-Series Tech' started by Cruiserdrew, Aug 21, 2006.

  1. Cruiserdrew

    Cruiserdrew On the way there SILVER Star

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    I'm in the process of beginning to think about the mods to my 71 frame as I rebuild a new to me trail rig. What is the preferred method for removing frame rivets? There are a number I need to remove to allow for running longer springs in the rear and other assorted projects. I did have some success cutting the head off with a sawzall and grinding flush, but there must be an ih8mud preferred method. The rear shackle hangers seem especially difficult. Thanks
     
  2. Colorado Boy-74-FJ40

    Colorado Boy-74-FJ40 I may grow older but I refuse to grow up!

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    Head grinding and a punch works. also try drilling thru the center and working up in bit sizes or use a uni-bit if you dont want to deface the frame too much
     
  3. John Smith

    John Smith In the garage

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    The fastest way I have found is to use an air chisel to cut off the head then pound out the remaining part.
     
  4. Pete

    Pete

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    Andrew,

    I wouldn't think there's anything special about removing the rivets. I would grind the heads flush with my angle grinder and then use a punch to drive the rivet through. They will be a tight fit I'm sure but I would think you could drive them out. If not, then you would need to drill them out, beginning with a smaller pilot hole, or heat the area with a torch and then drive them out.

    Pete
     
  5. Cruiserdrew

    Cruiserdrew On the way there SILVER Star

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    I did a bit of all of this today. The real issue is that some of those rivets on the shackle hangers are burried inside the hanger and nearly impossible to get. I am considering an air chisel but I already bought several air tools this month and my wife will start to complain.

    One thing I will say is that it is quite difficult to get at the welds at the front of the rear shackle hangers.

    Keep the ideas coming. I do not have a cutting torch either, but this project is making me think I need one.
     
  6. FJ40 MNTCRZR

    FJ40 MNTCRZR

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    Wierd, I have one of these too .... :doh:


    Good luck with both ... :beer:
     
  7. Pin_Head

    Pin_Head

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    Center punch and drill a little more than half way through the rivet with a bit slightly smaller than the hole. Drill with a larger bit to remove the head on one side. Then pound out the remains with a drift. Coring the center of the rivet makes it easier to pound out.
     
  8. Poser

    Poser Oh...Durka Durka Durka. s-Moderator Supporting Vendor

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    This is a fundamental tool to any fabrication shop/garage or hobbyist that finds themselves ramping up the level of projects beyond the bolt-on goodies provided in the land of aftermarket.


    There are MANY tasks that are done exponentially faster with the aid of the flame wrench. I would not think of removing rivets and spring hangers on the frame any other way, or u-bolts and stubborn suspension components for that matter.



    :beer:
     
  9. sine80

    sine80

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    I was in the same position you are in drew a few months ago. I did it with a drill and a crappy 4" grinder. It sucks! I dont thing I would do it again without a torch. it takes hours to get them off with those tools. i think a bigger grinder would make it much easier.

    mike
     
  10. 1973Guppie

    1973Guppie Supporting Vendor SILVER Star

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    drill and tapped the rivet out, use lots of cutting oil on the drill bites. Use several bits and go SLOW speed with a heavy type drill, my milwaukee does great. I used about 4-5 bits and stepped up along the way. Not all that bad really.

    Noah
     
  11. Full_M3tal

    Full_M3tal

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    If Your Not To Worried About Some Frame Damage I Have Found That A Cuting Torch Works Great And I 2 1/2lb Sledge With A Punch Works Great, Or You Can always Use A Plasma Cutter....


    My .02
     
  12. Coolerman

    Coolerman SILVER Star

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    Even a cheapo Harbor Freight air chisel will do the job. I bought mine for under $20. Throw away the chisels that come with it and get a quality rivet cutter. Got one of those from Grainger part #2Z885 $10.83 It will rip a rivet head off in seconds. I tried that grinder routine and it sucked big time ...[​IMG]
     
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