Jump to content


Photo
- - - - -

Gearbox Question


  • Please log in to reply
2 replies to this topic

#1 Steve220

Steve220

    Crazy About Mini's

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 5,115 posts
  • Location: Shropshire
  • Local Club: BMC

Posted 20 February 2015 - 11:00 AM

Hi all,

 

This maybe one for guessworks!

 

On a lot of modern gearboxes there is a spring loaded ball bearing in the selector arm that runs through grooves. As i'm not fully swept up on the Mini's how does it do the same role?

 

The reason i ask is mine is slipping out of 2nd. I did a few experiments where i tried to shock it out which only works a few times then if i'm cruising along in 2nd i can feel the gearstick move forward slowly out of gear to pop it into neutral, if i slowly pull back it goes back into the gear fully.

 

Any help or pictures would help me :)

 

Regards

Steve



#2 Guess-Works.com

Guess-Works.com

    Gearbox Guru

  • Traders
  • PipPipPipPipPipPipPipPipPipPipPip
  • 19,839 posts
  • Local Club: Rugby Classic Mini Owners Club

Posted 20 February 2015 - 12:19 PM

Worn selector fork which is not fully locating the synchro hub onto the gear, which then means when on run down, especially when coming to a junction or round about, the gear will pop out...

 

The mini gearbox does use springs and balls to help hold things in place when properly located, and also a 'feel' of engaging the gear through the lever.

 

Bottom line... needs a rebuild.



#3 Spider

Spider

    Moved Into The Garage

  • Admin
  • PipPipPipPipPipPipPipPipPipPipPip
  • 15,684 posts
  • Location: NSW
  • Local Club: South Australian Moke Club

Posted 20 February 2015 - 07:39 PM

Worn selector fork which is not fully locating the synchro hub onto the gear, which then means when on run down, especially when coming to a junction or round about, the gear will pop out...

 

The mini gearbox does use springs and balls to help hold things in place when properly located, and also a 'feel' of engaging the gear through the lever.

 

Bottom line... needs a rebuild.

 

Yeap. And if it's 'slipped out' a few times, particularly under power, it rounds off the dogs on the gear itself, then you also need to replace the gear too.






1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users