Mitsubishi Delica Owners Club UK™

[swizZer]

What on earth is axle wind up? I've seen it mentioned on the forum a few times but don't have a clue what it means

Can it affect all Deli's, or just L400's or just L300's and what can be done to avoid it happening in the 1st place?

Any info appreciated :D

Cheers

Paul
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. 92 L300 Exceed, Corse Grey/Grace Silver (with some bits of red)

[Google]

[Fostlongstrider]

Far as I know its when you have the diff locks in and one wheel on the axle is trying to turn at a different speed to the other,cornering or one wheel losing traction.
Only use diff locks if you have them and are really bogged in!!

Ian.
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Ian.

All the best from the East Riding of Yorkshire.
'93 L300 Super Exceed  Corse Gray over Grace Silver.Auto.

Flying Brick Supporter.

[soopahfly]

Thats pretty much it.
When you have the diff lock on, all the wheels must turn at the same speed.  When you are cornering the inside wheel turns slower and will cause a loud bang as the diff tries to turn it.

At least thats what happens in the Hilux.
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All that junk inside my truck.

[swizZer]

cheers guys so i take it that it won't affect L300 owners then as we don't have diff locks!  
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. 92 L300 Exceed, Corse Grey/Grace Silver (with some bits of red)

[grasshole (RIP)]

Swizzer mate, you can't use 4WD on metalled roads, only grass snow sand mud situations where traction is lacking otherwise you'll wreck the Deli :?

[swizZer]

[strangerover]

[swizZer]

i stand corrected then mark! :D
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. 92 L300 Exceed, Corse Grey/Grace Silver (with some bits of red)

[Mike Salt]

Do you mean that 4WD can't be used on a normal road at any time, or that the diff lock can't be used except off road ?

[Drooper]

4WD can be used at anytime off road or on but the diff lock should only be used when there is a real lack of traction and not on road for general use it will do damage.

Only thing is you may find an increase in your fuel consumption when running in 4WD.
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1994 White High Roof  L400 Exceed 7 seater.

NOTE: I would be very greatful if no one would post any pictures of my children anywhere,
I won't post pics of my kids or anyone elses so please do me the same courtesy. Thanks

[PinkPig]

The difference is that an L400 has a centre diff with a diff lock you can turn on and off. So you can run in 4WD on tarmac without the difflock and not cause damage

The L300 has a transfer box which when you put it in 4WD effectively gives you front to back diff lock. So you could go in a straight line on tarmac, but as soon as you corner and the wheel speeds are different, something has to give - either the tyres scrub and slip (which is okay on snow/mud etc), or the transfer box pops!

On the L300 you can leave the front hubs locked (while in 2WD mode)  - all this does is leave the drive shafts and front diff connected to the wheels(and wastes fuel because you're turning it all for no reason), but it is handy if you are on and off of mud/tarmac - just go from 4WD to 2WD and back as required.
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1988 Delica L300 Star Wagon 2.5TD 5sp Manual.
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[Fostlongstrider]

On an L300.
Surely if you have front and rear diffs putting the transfer box into 4WD will not affect the operation of the diffs and therfore the wheels can turn at different speeds with no ill effect.

Ian.
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Ian.

All the best from the East Riding of Yorkshire.
'93 L300 Super Exceed  Corse Gray over Grace Silver.Auto.

Flying Brick Supporter.

[strangerover]

[Fostlongstrider]

You've lost me,the front and rear props turn at the same speed,all the transfer box does is couple the drive to the front wheels as well as the rear wheels,no differential there.
I shall have to go and read up on this as I don't see the problem as surely the front and rear diffs cope with the difference in wheel speed.

Ian.
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Ian.

All the best from the East Riding of Yorkshire.
'93 L300 Super Exceed  Corse Gray over Grace Silver.Auto.

Flying Brick Supporter.

[strangerover]

trust me the props do not spin at the same speed, especially on a tight corner...

you will find that some vehicles e.g. Fiat Panda 4x4 from the 90's actualy warn against high speed full lock as the transmission can not take it...

I do see why you don't see it straight off... but thats why Series land rovers can not be driven in 4WD all the time they have open front and rear diff.
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Regards
Mark

[Lewis]

difflock windup

I think you will find 'wind up' relates to the difference between the front wheels speed of rotation compared to that of the rear wheels when the difflock is engaged, not the difference in the rotational difference of wheels on the same axle.  

Even small differences in rotational speed between the front and rear wheels cause a torque to be applied across the transmission. It is that force that is  known as "wind-up", which causes damage to the transmission or drive train. On loose surfaces these differences are absorbed by the tyre slippage on the road surface.

The L400 transfer case incorporates a center differential that allows the drive shafts to spin at different speeds. This lets it drive on paved surfaces without experiencing "wind-up", unlike the L300. However when the L400 Centre diff is locked both front and rear sets of wheels are made to rotate at the same speed, which is then the same as the L300.
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[Lewis]

NB: The L400 has a viscouse centre diff to allow 4WD use on road.

For more info on the Viscous diff see THIS THREAD HERE

HTH
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Copyright is retained for all my photos. Please don't copy them without asking permission
Do not blindly go where the path may lead you. Go where there is no path and leave a trail that others may follow!
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[Bob Ellison]

As wot Mark and Lewis said!  

I had a MK1 Paj (same set-up as the L300) and could only use 4WD in snow, mud, very wet grass, or loose gravel. Using 4WD on dry tarmac will eventually knacker an L300's transmission.

The Paj had a LSD on the rear and in 4WD the front wheels would 'unwind' when cornering and you had to watch for the 'slip'. If you were too aggressive/fast on the cornering the Paj would unwind, skid and keep going in a straight line. It did add to the fun but not funny when there's a ditch in the way.  

:D
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1994 L400 SE (Black)
1 Labrador lad (chocolate)
1 Labrador Girl (Yellow)
MDOCUK LTM No 101
POCUK LTM No 19

[BEAR]

The VCU on the L400's functions like an LSD in the centre diff (open) when in AWD (what is often called 4WD).There is no wind up possible in this situation.
But the L300 4WD is like L400 4WD locked and will cause wind-up between the now joined (locked) front and rear wheels.

[jennysteve]

thank you bear what a simple explanation. don't get wind up in the first place or it could cost you some money.
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L400 GREEN OVER GREY 2.8 TD CRYSTALITE ROOF.BORN TO LIVE..BORN TO DRIVE..


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