E39 keeps jumping out of 3rd gear

don't know about engine moving about, My mate thinks I might have done
the linkage or the clutch.
After thinking more about it, I think I can pin it down to human error
(lol), the problem only began after I used engine braking on the
motorway after some C*** pulled out infront of me on an exit. At first
I thought the car was sluggish in 3rd or 4th but I then got this jump
problem a few days later. I still think 3 & 4 gears are just slightly
sluggish sometimes when compared to 1,2,5. The 3 & 4 are connected
somehow me thinks. There is no popping, and the drop out to neutral
from 3rd seems almost effortless and annonyingly quiet so I only
realize when it happens if I rev and am going nowhere fast. It doesn't
happen if I'm pushing above 35 I think so slowly cruising is when it
happens. Better tip out the piggy bank.



hsg DeleteThis @h-gee.co.uk wrote:
> On 6 Nov 2006 07:22:53 -0800, "ChrisJ" wrote:
>
> Usually, if the engine mounts are good and the engine does not move about under
> braking then the likely cause is work synchromesh blocker rings and synchro hubs
> or maybe just the springs and balls but more often a case of synchro hubs and
> brass rings.
>
> Definitely a gearbox out job or a used box from a crashed car.
>
> Hugh
>
> >Got 102K on the clock.
> >
> >I'm not sure what other problems should be noticeable, as of now all I
> >see is sometimes in 3rd and moving and it justs shunts back to neutral
> >by itsef.
> >
> >It seems to happen sometimes, my guess is it would need for the gearbox
> >dropped out before I can know for sure. I'm not exactly sure what would
> >cause a worn or broken transmission mount, maybe cos I work my way down
> >the gears when braking??
> >
> >I'm not sure whats involved, any ideas on how long/how much to fix the
> >problems you've suggested??
> >
> >Thanks
> >
> >
> >
> >Jeff Strickland wrote:
> >
> >> Jumping out of gear can be a sign of a worn (broken) motor or transmission
> >> mount, or it can be a fried transmission. I suppose there _could_ be an
> >> issue with the linkage, but searching for the transmission mount should
> >> discover such a malady. I suspect linkage problems would be noticable in
> >> other ways too, and since you did not discuss any other symptoms, I tend to
> >> discount linkage related problems.
> >>
> >>
> >>
> >>
> >>
> >> "ChrisJ" wrote in message
> >>
> >> > The E39 520 seems to have suddenly started disliking the 3rd gear.
> >> > When driving, and shift to 3rd, half the time after driving for a
> >> > random amount of time, the gear will simply drop back to manual. This
> >> > seems to happen especially when slow driving. It doesn't happen in any
> >> > other gear position. Also resting my hand on the gear stick in 3rd
> >> > means it will randomly drop out of 3rd and I find that I can easily get
> >> > it out of 3rd without depressing the cluth by just gently pulling on
> >> > the lever. Again this doesn't happen in any other gear position.
> >> >
> >> > Anyone know of this problem, how to fix it and what i'm looking to lay
> >> > out to fix it
> >> >
> >> >
> >> > Thanks
> >> >
>
>
> Sir Hugh of Bognor
>
> The difference between men and boys is the price of their toys.
>
> Intelligence is not knowing the answer but knowing where and how to find it!
>
> Hugh Gundersen
> hsg DeleteThis @h-gee.co.uk
> Bognor Regis, W.Sussex, England, UK

don't know about engine moving about, My mate thinks I might have done
the linkage or the clutch.
After thinking more about it, I think I can pin it down to human error
(lol), the problem only began after I used engine braking on the
motorway after some C*** pulled out infront of me on an exit. At first
I thought the car was sluggish in 3rd or 4th but I then got this jump
problem a few days later. I still think 3 & 4 gears are just slightly
sluggish sometimes when compared to 1,2,5. The 3 & 4 are connected
somehow me thinks. There is no popping, and the drop out to neutral
from 3rd seems almost effortless and annonyingly quiet so I only
realize when it happens if I rev and am going nowhere fast. It doesn't
happen if I'm pushing above 35 I think so slowly cruising is when it
happens. Better tip out the piggy bank.



hsg.TakeThisOut@h-gee.co.uk wrote:
> On 6 Nov 2006 07:22:53 -0800, "ChrisJ" wrote:
>
> Usually, if the engine mounts are good and the engine does not move about under
> braking then the likely cause is work synchromesh blocker rings and synchro hubs
> or maybe just the springs and balls but more often a case of synchro hubs and
> brass rings.
>
> Definitely a gearbox out job or a used box from a crashed car.
>
> Hugh
>
> >Got 102K on the clock.
> >
> >I'm not sure what other problems should be noticeable, as of now all I
> >see is sometimes in 3rd and moving and it justs shunts back to neutral
> >by itsef.
> >
> >It seems to happen sometimes, my guess is it would need for the gearbox
> >dropped out before I can know for sure. I'm not exactly sure what would
> >cause a worn or broken transmission mount, maybe cos I work my way down
> >the gears when braking??
> >
> >I'm not sure whats involved, any ideas on how long/how much to fix the
> >problems you've suggested??
> >
> >Thanks
> >
> >
> >
> >Jeff Strickland wrote:
> >
> >> Jumping out of gear can be a sign of a worn (broken) motor or transmission
> >> mount, or it can be a fried transmission. I suppose there _could_ be an
> >> issue with the linkage, but searching for the transmission mount should
> >> discover such a malady. I suspect linkage problems would be noticable in
> >> other ways too, and since you did not discuss any other symptoms, I tend to
> >> discount linkage related problems.
> >>
> >>
> >>
> >>
> >>
> >> "ChrisJ" wrote in message
> >>
> >> > The E39 520 seems to have suddenly started disliking the 3rd gear.
> >> > When driving, and shift to 3rd, half the time after driving for a
> >> > random amount of time, the gear will simply drop back to manual. This
> >> > seems to happen especially when slow driving. It doesn't happen in any
> >> > other gear position. Also resting my hand on the gear stick in 3rd
> >> > means it will randomly drop out of 3rd and I find that I can easily get
> >> > it out of 3rd without depressing the cluth by just gently pulling on
> >> > the lever. Again this doesn't happen in any other gear position.
> >> >
> >> > Anyone know of this problem, how to fix it and what i'm looking to lay
> >> > out to fix it
> >> >
> >> >
> >> > Thanks
> >> >
>
>
> Sir Hugh of Bognor
>
> The difference between men and boys is the price of their toys.
>
> Intelligence is not knowing the answer but knowing where and how to find it!
>
> Hugh Gundersen
> hsg.TakeThisOut@h-gee.co.uk
> Bognor Regis, W.Sussex, England, UK