4th Gear problems.

Post by **iandromiskin** » Mon Jun 22, 2009 9:23 pm

Hi. One of my cars might have a problem with 4th gear which every now and again slips out of gear. Is this serious (gearbox replacement) or relatively easy to fix ?

Post by **nigelr2000** » Mon Jun 22, 2009 10:15 pm

Mine does the same if you accelerate too hard or are climbing a hill, its fine otherwise would be nice to know whats causing it/ how it can be fixed

Post by **Mogwai** » Mon Jun 22, 2009 10:24 pm

Could be worn bearings but likely to be wear to the dog teeth on 4th gear & sliding hub causing them to separate under load. Baring no other problems would need a new 1st motion shaft ,sliding hub & syncro if that's the fault or a replacement box

Post by **iandromiskin** » Tue Jun 23, 2009 10:21 am

Probably a lot easier just to replace the box

Post by **bmcecosse** » Wed Jun 24, 2009 11:02 pm

The dog teeth etc on 4th gear NEVER wear - it's a sign of serious bearing wear - search for another box asap! You can then swap over - and overhaul your box at your leisure!