derwendolly

derwendolly

Well-Known Member
Full Member
I had to have my yr 2000 W reg TD5 ES Disco recovered last week because I could not get it into gear. My mechanic has renewed the clutch slave and master cylinders because it was weeping a little. He said he had difficulty getting air out of the system but it eventually came and the vehicle worked perfectly.
I collected it from him on Thursday and the gears were all selectable with the usual 'glide'. After a 30 mile journey, I pulled up and tried to go into reverse to park - no go. I tried 1st gear - no go. Eventually I got it to push/force into gear and drove home but it became a nightmare journey as getting a gear was 'very hit and miss' and even when I did get one it was only with difficulty. There is no gear crunching sounds at all, in fact there is no sounds - it just wont go into gear. It is as if something is stopping the gear stick fom getting into the gear. When it is in gear it works perfectly - until I have to change gear.
Once home, I rang my mechanic and he said to bring it in to him in about half an hour. I had a cup of tea and went to set off - the gears were perfect again!!! I contiued to see the mechanic (10 miles) and the Disco continued to behave perfectly. He is stumped to know what is going on and this, coming from him, is very rare.
I took it for a long drive again yesterday and all went well until I tried to get it in reverse to park in the pub - lunch out! Again I had difficulty but did eventually, after half a dozen attempts, push/force it into gear. Drove it home and all was well.

Any suggestions?? Is it that something is happening 'inside' only when the engine is warm?
I would welcome any suggestions as I am sure a hundred heads are better than one.
 
it could be worn baulk rings in gear box etc but if was okay before clutch cylinder changes ,i would be looking there first,new parts arent necessarily the best quality now
 
The clutch cylinders were only changed AFTER I had it was recovered due to me not being able to get it in gear. This seemed to happen quite suddenly on one day and has always started to 'go wrong' when it was reverse that I wanted to select.
I will pass on your suggestion to my mechanic for him to chew over. I always stipulate that I want LR original parts when I have work done as I believe that is what the vehicle was made for. I know it costs more but I do it so as to try to ensure happy motoring! I am both too aged and too clueless to work on it myself!!!!!!!!!!!
PS. I has done 205,00 miles in 12 years and only myself (and mechanic ) that has driven it.
 
is it an lt77 gearbox per chance

as it could be the main input bearing giving up the ghost and the slack its creating could be upsetting the synchro when put in reverse when the gearbox oil is warmed up id get yer mechanic to look at that side of it
 
johnny curt 1 said:
is it an lt77 gearbox per chance

as it could be the main input bearing giving up the ghost and the slack its creating could be upsetting the synchro when put in reverse when the gearbox oil is warmed up id get yer mechanic to look at that side of it
Click to expand...
I would agree that this is most likely as its intermittent it may be operating normally when it hits the correct position but doesnt work when hitting a worn bit. This makes sense to me .
 
johnny curt 1 said:
is it an lt77 gearbox per chance

as it could be the main input bearing giving up the ghost and the slack its creating could be upsetting the synchro when put in reverse when the gearbox oil is warmed up id get yer mechanic to look at that side of it
Click to expand...

Now that is a good question! I only own and drive the vehicle, I have not idea what gearsbox it is but I will pass on your comments to my mechanic.

All I can say is it is a Disco2 td5 ES W reg, yr 2000.
 
derwendolly said:
Now that is a good question! I only own and drive the vehicle, I have not idea what gearsbox it is but I will pass on your comments to my mechanic.

All I can say is it is a Disco2 td5 ES W reg, yr 2000.
Click to expand...

my suggestion comes from a disco my mate had with an lt77 box that started doing the same thing till he couldnt get any gears by means of it would go into gear but no drive exept in low range 4th gear

when i replaced the gearbox with another i stripped the old one to find out what went wrong it was the input bearing worn out chipped 2 teeth off that main shaft and completeley obliterated the next gear on the secondary shaft and bent the brass selector fork at that end of the box basicaly it had totaly destroyed itself
 
johnny curt 1 said:
my suggestion comes from a disco my mate had with an lt77 box that started doing the same thing till he couldnt get any gears by means of it would go into gear but no drive exept in low range 4th gear

when i replaced the gearbox with another i stripped the old one to find out what went wrong it was the input bearing worn out chipped 2 teeth off that main shaft and completeley obliterated the next gear on the secondary shaft and bent the brass selector fork at that end of the box basicaly it had totaly destroyed itself
Click to expand...

Thanks for you personal experience input - I am sure this is going to help help find the ansawer.
To replace said main input bearing(s) are we looking at an big,expensive job do you know?
 
derwendolly said:
Thanks for you personal experience input - I am sure this is going to help help find the ansawer.
To replace said main input bearing(s) are we looking at an big,expensive job do you know?
Click to expand...

not a clue mate but i know a replacement input shaft was hitting the £200 mark at the time and an entire gearbox was £50 second hand but working mint

bit of a no brainer really in that instance
 
same symptoms as me old mans td5 when he was holiday'ing across europe. seems his only did it at the top of mountain passes with lots of hairpins and gearchanges.
never got resolved as it worked ok coming back down.
would be interested to hear the outcome with yours tho.
 
long shot but i had probs with an old rang rover loosing its pedle,some dude told me to replace the cluth push rod which didnt come with the cylinder, took it out it was worn put in new one sorted, like i said long shot:behindsofa:
 
Thanks chaps for all the input. I am collecting all these ideas ready for my mechanic to peruse when he starts work again next Wednesday.
 
johnny curt 1 said:
is it an lt77 gearbox per chance

as it could be the main input bearing giving up the ghost and the slack its creating could be upsetting the synchro when put in reverse when the gearbox oil is warmed up id get yer mechanic to look at that side of it
Click to expand...
there is no synchro on reverse in an lt77 it has sliding idler gear
 
could be not clearing due to clutch dragging ,would be worth removing gear box top and checking lever ,bush bias plate ,bias springs (can wear into lever and jam ) and yoke on selector shaft,worn front bearings would give noise and poor 3rd/4th change,springs can come out of srnchro unit and inhibit gear change but it wouldnt normally give intermittent problem ,any bearing fault is generally preceded by noise ,dropping some oil out of drain plug would show any metal particles indicating problem in the box
 
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