Gearbox refit

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
J

jfamor

New Member
Posts
42
Hi there I´m Javier frome Chile, I own a Disco II TD 5 an a manual gearbox, the car has 345000kms and run great exept for the nos to get to 2nd gear. I have been reading I i belive that is the syncro of the 2nd gear. My idea is to make an Gearbox overhaul, but what part is sugested to changes. Here in Chile LR is very expensive and wil take a long time (more many) because my car is the first and the TD5 plus R380 with more kms, then is the first time.


Any advise will be very helpfull on what to change and place to get the parts

Many thanks
 
The syncros are weak in the R380 not just as weak as the LT-77, our disco crunches going into second, also crunches going into fourth at speed. All the defenders around my mates farm crunch when going through gears, granted most are LT-77s but the ones with R380s have started recently. Neither box is great, but the R380 is stronger than the old LT box.
 
Last edited:
Hi all,

I am sorry to hijack this old thread.

My Defender 90 Td5 2002 MY has 80.000 Km now and it slighlty crunch from 1° to 2° gear and from 2° to 3° gear unless I shift gear very slowly and waiting, when I press the clutch, that engine rpm falls almost to idle speed.
(I think gearbox model is R380)

Is this usual to happen in a 80.000 Km "only" gearbox ?
Do you think a oil change would help to solve the problem ?
Should I maybe add to oil any teflon adictive ?

Thank you.
 
Last edited:
IMHO first of all with gear change issues the selector bias(springs/plate/bush pivot) must be checked.......when these are certainly OK than go for gearbox overhaul.
 
The odd thing is that I can shift 1-2 and 2-3 if I count 1-2 sec with gear in neutral position while shifting, but if I try to shift quicker, I can hear a slight crunch.
Can syncromesh already be worn in a R380 gearbox which has never been used in the past in off road ?
I heard that a R380 gearbok is just coming out from break-in after 100.000 Km ...
I planned anyway to change all oil (Diff. Gearbox and Reductor) coming Tuesday morning ...
 
Hi all,

I have a problem with my R380 gearbox, I think (the car has 83.000 Km).
It is the fourth time in the last week that, when I am using reverse gear, I suddenly hear a noise like "ggrrooooooooooooooooooooooooo" coming from gearbox. It comes suddenly while parking for example and I release the clutch to move the car.
I shift to neutral and back again to reverse gear and the noise stops.
It sound as a problem related to reverse gear shaft, but I am not expert at all.
Any idea please ?

Thank you.
 
It sounds like you might not be selecting reverse gear completely.

Try to be more careful with the gearshift, take your time, male sure it goes right in to gear before releasing the clutch!
 
Thank you for your answer Mr Noisy.

You are right, the noise could be that one, but I am always very careful with the gearshift.

I could run a deeper test with my car across the weekend: when I do a reverse moving backwords my car, the noise is coming, I can press the clutch and the noise is still there. Again, with clutch still pressed and never being released, if I shift to other gears, the noise is still there, even in neutral position, so I dont think it is related at all to revers shaft.
When I release clutch and I press it again the noise is gone.
I think the problem might be related 99% to clutch release bearing or maybe to clutch cover, not to R-380 gearbox or to transfer box.
 
Last edited:
Bizio said:
Thank you for your answer Mr Noisy.

You are right, the noise could be that one, but I am always very careful with the gearshift.

I could run a deeper test with my car across the weekend: when I do a reverse moving backwords my car, the noise is coming, I can press the clutch and the noise is still there. Again, with clutch still pressed and never being released, if I shift to other gears, the noise is still there, even in neutral position, so I dont think it is related at all to revers shaft.
When I release clutch and I press it again the noise is gone.
I think the problem might be related 99% to clutch release bearing or maybe to clutch cover, not to R-380 gearbox or to transfer box.
Click to expand...

Complete shot in the dark here - I had a problem with my disco after its MOT, when I tried to reverse I was getting the most horrendous noise and the car would come to an almost complete stop, fine when moving forward. The helpful chap at the garage had over adjusted the handbrake at the drum which was locking on reverse. Half turn of the adjuster solved the problem. Oh and a quick phone call to the tester.
 
Could be a clutch release bearing yes, this will make a noise when clutch is pressed, not make a noise when clutch is not pressed.

this will happen in any gear or neutral, and when moving or stopped.

good shout on the brake drum tbh, but if it happens when stationary aswell it cant really be that!

clutch release bearing usually makes a noise all the time once it has gone bad, but yours might be half broken! and it could aswell be a dodgy spring on the clutch cover maybe.

good luck testing it out

remember you can put your transfer box in neutral by sleecting halfway in between high and low ratio, and that way your can put your main gearbox into gear and release the clutch, without moving anywhere.

this may help you to find out where the noise is coming from.

cheers.
 
Mr Noisy said:
Could be a clutch release bearing yes, this will make a noise when clutch is pressed, not make a noise when clutch is not pressed.

this will happen in any gear or neutral, and when moving or stopped.

good shout on the brake drum tbh, but if it happens when stationary aswell it cant really be that!

clutch release bearing usually makes a noise all the time once it has gone bad, but yours might be half broken! and it could aswell be a dodgy spring on the clutch cover maybe.

good luck testing it out

remember you can put your transfer box in neutral by sleecting halfway in between high and low ratio, and that way your can put your main gearbox into gear and release the clutch, without moving anywhere.

this may help you to find out where the noise is coming from.

cheers.
Click to expand...

Thanks for your suggestions, Mr Noisy.

That's exactly what a friend who is working in a Land Rover service unfortunatly far away from me, told me after reading my post at Italian forum and listening to the recording of the noise I did with my pda

Noise recording : WAV and MP3

Africaland • Leggi argomento - Cambio R380 : a volte si sente rumore specie in retromarcia

1) lascio la frizione un po' bruscamente
2) il veicolo si avvia e contestualemente inizia il rumore che sembra provenire da sotto alla leva del cambio o cmq da quella zona.
3) ripremo e tengo premuta la frizione e il rumore permane
4) muovendo la leva del cambio con la frizione ovviamente sempre premuta nelle altre marce il rumore permane (ho provato in folle, terza e quarta) !
5) spostando la leva dei riduttore in posizione e N e posizioni ridotte ovviamente tenendo sempre premuta la frizione il rumore permane !
Con la frizione premuta, alberi del cambio e riduttore si fermano, giusto ?
Cosa rimane in movimento che puo' produrre quel rumore ? Volano, cuscinetto reggispinta, disco frizione ?

6) se rilascio completamente il pedale della frizione (ovviamente con il cambio in folle) il rumore sparisce.
Click to expand...

This is translation to English of the tests I did yesterday morning :

1) shift to reverse gear and release clutch slightly sharply so that car starts to move backwards
2) the car moves and the noise is heard
3) I press the clutch and I keep it pressed , the car stops and the noise is still there
4) shifting to 2nd 3rd 4th 5th gear, the noise is still there (so I think it is not a gearbox reverse/5th gear shaft problem)
5) shifting to N, to L the transfer box, the noise is still there
6) I release the clutch and the noise comes to end.

Just repeating the above sequence, the noise comes again, not all the times.

No noise at all by normal driving in 1st-5th gear.
No noise at all with engine idle, gearbox in neutral and clutch released.

I think that in reverse gear the clutch bearing or, as you said, a spring of the clutch cover is stressed and makes noise.

Do you think should I immediatly proceed to replace the parts ?
Thanks again.
 
hello

yes it definitely seems like a noisy clutch bearing to me.

your sound recording is difficult to hear clearly!

however, your description fits a clutch bearing perfectly.

if it is the bearing (which we think it is) then its not immediatly necessary to change it if you do not want to.

i have a discovery with lt77 geabox and the clutch bearing went noisy whilst i was offroading. muddy water had entered the clutch housing and caused the bearing to become noisy. mine gave a high pitched squeal/whine, but most clutch bearing noises are a 'grooooooo' noise.

i drove on mine for quite a few months, and actually in the end it got better again!

but then my gearbox broke so i had to take it out anyway.

remember you have to take the whole gearbox out to replace the clutch bearing, this is about an 8 hour job in total for most competent mechanics.

it is your choice to decide if you want to replace it immediatly, or wait to see if the problem continues, or gets better or worse.

also i must complement you on your excellent english!

cheers :D
 
Hi Mr Noisy,

thanks again for your answer.

I will wait and see what happens.
I know that removing whole R-380 and transfer box is a long and expensive work.
I will buy the complete Valeo clutch kit so that I am ready when the moment to replace the whole clutch will come. ;)
I think I am stressing a little bit my Defender Td5 clutch since from when I bought it last July I run over 6,000 Km most of them in the daily traffic jam of my town during rush hours.

p.s.
I have been working in the past for 9 years for NatWest in Italy and in London, so that at least I could learn and practice my English :)
 
Mr Noisy said:
top man :)
Click to expand...

LOL

Hi.
I just came back from a Land Rover service.
They could'nt listen to noise but could test my clutch.
It seems all fine and according to their opinion the noise is coming
from the bush in the middle of flyweel where the gearbox shaft is rotating.
With rain, dirty and heavy use the bush becomes noisy and problem arises when driving in reverse gear since we generally never release completely the clutch so that flyweel and gearbox shaft have different rotating speed.
The noise can sometime be similar to a "moooooooooooooo" and sometime to a "groooooooooooooo". :)
 
You must log in or register to reply here.

Similar threads

Dieselweasel0
Discovery lt77 gearbox
Replies
5
Views
504
lynall
L
L
td5 auto gearbox
Replies
5
Views
414
sierrafery
sierrafery
findo1
Engine or gearbox in first ? Which is best?
Replies
2
Views
343
findo1
findo1
htr
Freelander 1 Drain the gearbox?
Replies
2
Views
237
Arctic2
Arctic2
9
R380 Gear Selection Issue
Replies
3
Views
259
Anaconda
A
Back
Top