help stuck in 4x4

discool · Feb 2, 2009

PASTMASTER said:
Sigh.

ALL discos are permanent 4WD. The little lever shifts between Hi and Lo and on the TDi models it also engages difflock (the light goes on). If you can't get the light to go off the easiest thing is to make one of the wheels spin. Try a patch of mud/snow or bounce it off a curb. Do it soon as your steering will get stiffer and your tyres will wear out.

The only way to put a disco into 2WD is to take a propshaft off.

Dose on V8 models also.

metallicachick86 · Feb 2, 2009

gavdisco said:
went out put it in reverse and she came straight out and the light went off. should i get the diff's check out or is this a common thing?. thanks for all your help

its common, dont put them in diff lock on normal roads or you'll feck up ure boxes or snap a shaft

only use it when you REALLY need it, for normal greenlaning, normal four wheel drive is fine

and for the record, nickleback suck arse

Pikey · Feb 2, 2009

Think you might need difflock on the roads at the mo...

Basically for those that don't know. A diff is designed to allow the wheels on the axles to turn at different speeds so that when turning corners etc the outer wheel can spin faster than the inner wheel. If it didn't do this the vehicle would crab round corners and drag the outer wheel, and as MC says would put huge strain on the halfshafts. and eventually snap them.

So they fitted Axle diffs to prevent this problem. The problem with this is that all the drive will always go to the wheel offering least resistance. so if one wheel spins then all the drive goes to the at wheel. Hence the need for diff locks. on 4x4's

LR however only provided a centre diff which only locks the propshafts so that they turn at the same speed. and to a large extent removes the problem of snapping halfshafts. but still causes problems with tyre wear and heavy steering.

goonarmy · Feb 2, 2009

gavdisco said:
i have a 200 tdi they dont run in 4wh all the time

ARRRRGGHHHHH!!!!!!!:doh::doh::doh::doh:

PASTMASTER · Feb 2, 2009

discool said:
Dose on V8 models also.

oops sorry, I was using TDi as shorthand for Series I. SII models don't have difflock as they have a viscous coupling instead of the centre diff. (And TC and ABS as well, for good measure). Everything is permanent 4WD though.

Davec · Feb 2, 2009

PASTMASTER said:
oops sorry, I was using TDi as shorthand for Series I. SII models don't have difflock as they have a viscous coupling instead of the centre diff. (And TC and ABS as well, for good measure). Everything is permanent 4WD though.

Only Range Rovers (some) and Freelanders have viscous couplings.
All Discoveries have a centre differential, but some Discovery 2s have no provision for locking them as they have Traction Control.

Pikey · Feb 2, 2009

PASTMASTER said:
oops sorry, I was using TDi as shorthand for Series I. SII models don't have difflock as they have a viscous coupling instead of the centre diff. (And TC and ABS as well, for good measure). Everything is permanent 4WD though.

:doh: :doh:See my signature

:doh: :doh:

All landrovers have been permanent 4WD since the 90/110 came out in 1984 (some early 110's still had the selectable 2/4wd of the series)

All landrovers have difflock except the early disco 2's and some rangies.

NB gaylanders are excluded from the above cos they int proper offroaders and god knows what ****e they have had attached to em.

PASTMASTER · Feb 2, 2009

Davec said:
Only Range Rovers (some) and Freelanders have viscous couplings.
All Discoveries have a centre differential, but some Discovery 2s have no provision for locking them as they have Traction Control.

:doh:Well begger me. Ur right.

Must be a time-shift folk memory from my Gaylander days.

Not quite true though - T'book says you CAN lock them for rolling road test purposes, but must be unlocked for normal use. There's a wee lever on the transfer box. That's wot it says, anyway...

Cabbie · Feb 2, 2009

redhand said:
:doh: :doh:See my signature :doh: :doh:

All landrovers have been permanent 4WD since the 90/110 came out in 1984 (some early 110's still had the selectable 2/4wd of the series)

All landrovers have difflock except the early disco 2's and some rangies.

NB gaylanders are excluded from the above cos they int proper offroaders and god knows what ****e they have had attached to em.

When and how is difflock applied on my old Series11A. Is it something to do with low ratio?

battenberg · Feb 2, 2009

the wee lever is left over from the stock of gearboxes that LR had when they went into production with the DII. but didnt fit an actuating lever 'cos they reckoned TC was better.

early DII's had 'em, then they scrapped it , then they bought it back.

some of them had no difflock at all, till customer demand insisted that it should be an option. I think there is a 2-3 year period in the early models that may not have them fitted, with or without the actuating lever.

Taffy · Feb 2, 2009

disco 200 tdi is 4x4 perm wheel drive standard drive is unlocked high

position for normal driving is bottm right wheels spins fast and indepently
position for low but power is top right all wheels spins indepently but low speed
position for normal high but with diff locked is bottom left normally for sand snow mud all wheels spins same speed
position for low range with diff lock is top left. very slow all 4 wheels spin same etc.
hope that helps.
u might find difficulty to re engage back to normal high which is bottom right if so let the landy move couple miles per hour and it will click in.

battenberg · Feb 2, 2009

Taffy said:
disco 200 tdi is 4x4 perm wheel drive standard drive is unlocked high

position for normal driving is bottm right wheels spins fast and indepently
position for low but power is top right all wheels spins indepently but low speed
position for normal high but with diff locked is bottom left normally for sand snow mud all wheels spins same speed
position for low range with diff lock is top left. very slow all 4 wheels spin same etc.
hope that helps.
u might find difficulty to re engage back to normal high which is bottom right if so let the landy move couple miles per hour and it will click in.

no that's wrong. diff lock only locks the center diff

hughesy · Feb 2, 2009

Cabbie said:
When and how is difflock applied on my old Series11A. Is it something to do with low ratio?

FFS your 2a doesn't have a centre diff so how can it have a centre diff lock. When you put a series landy into 4wd the propshafts are locked together like a 90/110/disco etc would be with the centre diff locked. That is why you shouldn't use 4wd on the road in a series landy you will break something.

mysteryman · Feb 2, 2009

Is that right?

PASTMASTER · Feb 2, 2009

Cabbie said:
When and how is difflock applied on my old Series11A. Is it something to do with low ratio?

Series IIA "Defender" doesn't have a centre diff. That's why you must only use 4WD off road. In H or L 4WD, the axles are locked together, and transmission wind-up, and possible damage, will occur if you drive on a smooth non-slip surface ("road"). Yellow and red levers are for off-road or snow and ice only. Use 2WD onroad.

goonarmy · Feb 2, 2009

PASTMASTER said:
Series IIA "Defender"

Woss one of them?

hughesy · Feb 2, 2009

It's little wonder people have problems with Land Rovers when so many people don't know the basic mechanical details of the vehicle they're driving.

mysteryman · Feb 2, 2009

Fill me in cus I'm all ears - well not literally but interested
Gotta Defender...........

RSM72 · Feb 2, 2009

Great fred ive been sat here ****ing with laghter,,,,,,,,hughesy must be banging his head of the wall with frustration,,,,:frusty:,,,,,,,

Davec · Feb 2, 2009

redhand said:
:doh: :doh:See my signature :doh: :doh:

All landrovers have been permanent 4WD since the 90/110 came out in 1984 (some early 110's still had the selectable 2/4wd of the series)

All landrovers have difflock except the early disco 2's and some rangies. Only since the 90/110 as above. And then only until 2001, current Range Rovers do not have manaual diff locks, nor does the Discovery 3 or Range Rover Sport

NB gaylanders are excluded from the above cos they int proper offroaders and god knows what ****e they have had attached to em. Freelanders also have permanent 4WD. With the right driver thay will often out perform other Land Rovers with the wrong driver, and often surprise those who can drive off road.

Overall there are probably more Land Rovers without manually lockable center diffs than with.

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