Ball Diff wheel hub screw thingo?

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    • March 27, 2004 at 10:02 pm #12069
      kevsta
      Participant
      • Posts: 974

      Hi,

      I just installed the RCRM Ball Diff on my mini-z racer and noticed that the little screw thingy that fastens the wheel hub to the axle can easily un screw itself when the car is driven.

      What tool does everyone use to tighten this screw thingy . The screw doesn t have a top, so you can t simply insert a phillips head screw driver into it.

      BTW. Hobbyco sell this item for $60 😯

      Thanks in advance,

      Kevsta.

    • March 27, 2004 at 11:29 pm #50317
      oldtamiyaphile
      Participant
      • Posts: 315

      It’s called a set screw, use an allen key.

      Threadlock will stop it coming loose (use only Tamiya threadlock). But my Kyosho diffs have stayed put fine without.

    • March 27, 2004 at 11:29 pm #50518
      oldtamiyaphile
      Participant
      • Posts: 315

      It’s called a set screw, use an allen key.

      Threadlock will stop it coming loose (use only Tamiya threadlock). But my Kyosho diffs have stayed put fine without.

    • March 28, 2004 at 1:17 am #50318
      kevsta
      Participant
      • Posts: 974

      Thanks for the info.

      I didn’t notice that the inside of the ‘set screw’ had the shape for an allen key – I’ve been inserting in some pointy tipped tweezers and turning clockwise. Must check again.

      Cheers,
      Kevsta.

    • March 28, 2004 at 1:17 am #50519
      kevsta
      Participant
      • Posts: 974

      Thanks for the info.

      I didn’t notice that the inside of the ‘set screw’ had the shape for an allen key – I’ve been inserting in some pointy tipped tweezers and turning clockwise. Must check again.

      Cheers,
      Kevsta.

    • March 28, 2004 at 4:04 am #50319
      Avatar photoAaron
      Keymaster
      • Posts: 2146

      It’s the same size set screw as those used on 1/10th RC car pinions so you can get spares 😉

      I just crank the bugger up nice and tight….

      A.

      --
      Site Owner Guy.

    • March 28, 2004 at 4:04 am #50520
      Avatar photoAaron
      Keymaster
      • Posts: 2146

      It’s the same size set screw as those used on 1/10th RC car pinions so you can get spares 😉

      I just crank the bugger up nice and tight….

      A.

      --
      Site Owner Guy.

    • April 1, 2004 at 4:14 pm #50340
      jamiekulhanek
      Participant
      • Posts: 2563
      Quote:
      It’s the same size set screw as those used on 1/10th RC car pinions so you can get spares 😉

      I just crank the bugger up nice and tight….

      A.

      I did that a few too manytimes and stripped the thread, so i drilled a hole on the other side and tapped it….all better now!

    • April 1, 2004 at 4:14 pm #50541
      jamiekulhanek
      Participant
      • Posts: 2563
      Quote:
      It’s the same size set screw as those used on 1/10th RC car pinions so you can get spares 😉

      I just crank the bugger up nice and tight….

      A.

      I did that a few too manytimes and stripped the thread, so i drilled a hole on the other side and tapped it….all better now!

    • April 1, 2004 at 5:11 pm #50341
      dgs73
      Participant
      • Posts: 2179

      dod its a grub screw, or set screw as OTP says. I can send you one with the stickers if you want, i’ve got three of em. Most ball diffs come with them.

    • April 1, 2004 at 5:11 pm #50542
      dgs73
      Participant
      • Posts: 2179

      dod its a grub screw, or set screw as OTP says. I can send you one with the stickers if you want, i’ve got three of em. Most ball diffs come with them.

    • April 1, 2004 at 5:12 pm #50342
      dgs73
      Participant
      • Posts: 2179

      a spare allen key, that is… 🙂

    • April 1, 2004 at 5:12 pm #50543
      dgs73
      Participant
      • Posts: 2179

      a spare allen key, that is… 🙂

    • April 3, 2004 at 8:41 pm #50369
      kevsta
      Participant
      • Posts: 974

      Thanks for the help. All sorted now. Had a 2mm allen key in the tool box.

      Getting the accelerate full throttle pull to the left problem now…

    • April 3, 2004 at 8:41 pm #50570
      kevsta
      Participant
      • Posts: 974

      Thanks for the help. All sorted now. Had a 2mm allen key in the tool box.

      Getting the accelerate full throttle pull to the left problem now…

    • April 5, 2004 at 3:02 pm #50386
      dgs73
      Participant
      • Posts: 2179

      try tightening/loosening the diff, that might help your traction woes…:smiley2:

    • April 5, 2004 at 3:02 pm #50587
      dgs73
      Participant
      • Posts: 2179

      try tightening/loosening the diff, that might help your traction woes…:smiley2:

    • April 5, 2004 at 10:40 pm #50396
      kevsta
      Participant
      • Posts: 974

      Yeah, I think it is traction problems on a tiled floor. I noticed that if the floor is cleaned, or running on floor boards – its okay.

      BTW. Are the meadowbank netball courts smooth painted surface ?

      Thanks.

      Kevsta.

    • April 5, 2004 at 10:40 pm #50597
      kevsta
      Participant
      • Posts: 974

      Yeah, I think it is traction problems on a tiled floor. I noticed that if the floor is cleaned, or running on floor boards – its okay.

      BTW. Are the meadowbank netball courts smooth painted surface ?

      Thanks.

      Kevsta.

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