Old Classic Mini Gearbox Rebuild – Part 1

Gearboxes may seem complicated but they are very simple in their construction, and surprisingly easy to put together. The main issues are having the right tools to do the job. So here’s a list of what you will need. * Torque Wrench with a maximum range in excess of 150lbft * 1 1/2″ deep socket ( a ball joint socket is ideal ) * Small ratchet and a long extension is useful * Other sockets 1 1/8, 9/16, 1/2, 7/16, 3/8 * Small cold chisel * Steel punch (1/8″ diameter) * Larger steel drift * Mallet (soft and hard headed) * Small screw driver
Video Rating: 4 / 5

This entry was posted in Transmission Repair and tagged , , , , . Bookmark the permalink.

11 Responses to Old Classic Mini Gearbox Rebuild – Part 1

  1. DugganC17 says:

    Spellchecker

  2. DugganC17 says:

    Meant helicoil stupid spee

  3. DugganC17 says:

    Hi when assembling a gearbox could you just swap the helix oil gears for straight cut ones or is it not that simple

  4. Kalikanjaros says:

    Thank you! thank you !thank you!

  5. MiniManiaVideos says:

    Yes, the cases are degreased then glass bead blasted and painted.

  6. Vespanation says:

    May I ask, how did you get the bare casing so CLEAN? It looks like it’s brand new! Glass bead blasting? Aqua blasting?
    - Paul B.

  7. royharrison58 says:

    Hi I’m thinking of stripping and rebuilding my gearbox,when coming down into 2nd gear, it crunches unless at low revs and also crunches into reverse gear, what should I look for. Great videos

  8. ThomasXp says:

    I wish the tools at my schools shop where that nice :( everyone there has no respect for tools and they are all trashed.

  9. MiniManiaVideos says:

    @MrUnited08 If the later, it is still possible
    but less likely, and there’s nothing you can do about it without pulling
    the power unit, removing the gearbox and taking it apart. It is more
    likely that you have wear in the external rod shift mechanism or even a
    clutch issue.

  10. MiniManiaVideos says:

    You didn’t say whether your problem is one for a gearbox you’ve just
    rebuilt, or for one that is in your car and has started to exhibit the
    symptoms you mention. If the former and if the parts were not checked
    before and during assembly (and the gearbox bench checked before being
    mated to the engine), it is possible your problem could be with the
    parts/assembly shown in the video.

  11. MrUnited08 says:

    hi..part two ,the selector shaft etc can that area of working parts cause a mini gearbox to be stiff in neutral and make reverse very hard work to select and then find neutral again ?? i can allways make and post a video onto youtube of my problem :) any help would be much appreciated

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>