Manual hub locks

[Gorvid]

Eggman said:

Try disengaging 4WD on a loose surface and getting someone to observe whilst you try to spin a wheel.

I thought this earlier - and I took advantage of a bit of snow to test it out and I >WAS< in 2WD.

But that isn't to say it might be popping in and out I suppose.

Annoyingly, it is just a work bomber. Looks a mess (and is) but has a full MOT / six months TAX and an Ifor Williams top...only done 60k (farm) miles.

SO ANNOYING because I just can't be putting money into it.

Maybe a new thread IS better?

Thanks for the ideas so far

[Gorvid]

Ok, separate thread started.....

Thank you.

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

[bigblock]

Rum Runner said:

bigblock said:

Rum Runner said:

Ok to use 2 wheel and lockers on for short distance on good tarmac and tight turns to stop windup.

Edited by Rum Runner on Wednesday 6th January 12:04

Are you sure this is what you meant to say?

I think that this advice would almost certainly cause the opposite effect. Locking the diffs on tarmac and carrying out tight turns is asking for windup and subsequent damage. The very reason for open diffs is to prevent this type of strain on the drive components.

Big block I am talking about locking the hubs not diffs as there is no talk about locking axle diffs i.e the thread title

Edited by Rum Runner on Sunday 10th January 21:08

As I said above I did'nt think you meant to say " lock up your diffs then do tight turns on tarmac" however the term lockers which you used is normaly reserved for locking diffs, hence the reason I queried your advice.
Usualy you do make quite a bit of sense

[Rum Runner]

bigblock said:

Rum Runner said:

bigblock said:

Rum Runner said:

Ok to use 2 wheel and lockers on for short distance on good tarmac and tight turns to stop windup.

Edited by Rum Runner on Wednesday 6th January 12:04

Are you sure this is what you meant to say?

I think that this advice would almost certainly cause the opposite effect. Locking the diffs on tarmac and carrying out tight turns is asking for windup and subsequent damage. The very reason for open diffs is to prevent this type of strain on the drive components.

Big block I am talking about locking the hubs not diffs as there is no talk about locking axle diffs i.e the thread title

Edited by Rum Runner on Sunday 10th January 21:08

As I said above I did'nt think you meant to say " lock up your diffs then do tight turns on tarmac" however the term lockers which you used is normaly reserved for locking diffs, hence the reason I queried your advice.
Usualy you do make quite a bit of sense

Quite right bad terminology , though my Mrs recons I only make any sense when I am

[52classic]

Still confusing isn't it?

My Pajero can changes from 2 to 4 WD even on the move and we thought the Frontera did more or less the same. Never gave a thought to hubs marked 'Auto Freewheel'

But the Mu has hubs that require a quarter turn 'lock' to 'unlock.'

Based on previous responses we have been locking the hubs before engaging 4H and venturing on the snow but the front end behaves heavier than the Paj when in 4H.

So it seems that if 4H was engaged without the hubs being locked then we would be running RWD only - so why doesn't drive get transferred by the centre diff to the freewheeling front hubs so we go nowhere?

OK I'll get my coat....... But I wouldn't mind an answer!

[Rum Runner]

52classic said:

Still confusing isn't it?

My Pajero can changes from 2 to 4 WD even on the move and we thought the Frontera did more or less the same. Never gave a thought to hubs marked 'Auto Freewheel'

But the Mu has hubs that require a quarter turn 'lock' to 'unlock.'

Based on previous responses we have been locking the hubs before engaging 4H and venturing on the snow but the front end behaves heavier than the Paj when in 4H.

So it seems that if 4H was engaged without the hubs being locked then we would be running RWD only - so why doesn't drive get transferred by the centre diff to the freewheeling front hubs so we go nowhere?

OK I'll get my coat....... But I wouldn't mind an answer!

Some transfer boxes have a synchro on them so you can change from 2H to 4H on the move ( Usually below a given speed i.e 60 mph). Some don't and that means you have to stop. Going into L4 though requires a stop.

If 4H is engaged and the hubs are Free (unlocked) the front prop shaft/diff/drive shaft turn but the wheel end of the half shaft splines are not connected to the road wheel hub splines, so no drive.

When in 2H and hubs locked shaft/diff/drive shaft are turning due to the road wheels are going round (If on the move)but there is no gear selected in the transfer box to connect to the output shaft/propshaft (forward) so the front wheels are effectively in neutral so again no drive.

It is important will all 4x4 to use the vehicle in 4H/4L quite regularly to splash oil around the forward axle casing/diff to stop corrosion build up . Also with manual hubs if not used you can then find the day you need them they are seized free.

Hopefully that's written right. lost myself for moment

[bigblock]

Rum Runner said:

Some transfer boxes have a synchro on them so you can change from 2H to 4H on the move ( Usually below a given speed i.e 60 mph). Some don't and that means you have to stop. Going into L4 though requires a stop.

If 4H is engaged and the hubs are Free (unlocked) the front prop shaft/diff/drive shaft turn but the wheel end of the half shaft splines are not connected to the road wheel hub splines, so no drive.

When in 2H and hubs locked shaft/diff/drive shaft are turning due to the road wheels are going round (If on the move)but there is no gear selected in the transfer box to connect to the output shaft/propshaft (forward) so the front wheels are effectively in neutral so again no drive.

It is important will all 4x4 to use the vehicle in 4H/4L quite regularly to splash oil around the forward axle casing/diff to stop corrosion build up . Also with manual hubs if not used you can then find the day you need them they are seized free.

Hopefully that's written right. lost myself for moment

Now that makes sense but then I am also

Edited by bigblock on Saturday 16th January 00:44