Offroad-Express

can some one help me when i select 4wd hi or low on inside lever i get a continous clicking sound from the front hubs and then i hop out and turn the auto hubs to the lock position and there is no noise do i have a problem and if some one could please explain the purpose of changing the postion on the hubs from auto to lock.thank you

unbolt the hubs and swap the sides, sounds like they are on the wrong side
, if not time to look for new ones

Try servicing the hubs. Sounds like they are not "auto engaging" properly if they can be manually done then that is where I would start.

Heath

I was looking at LWB safari on weekend and it had no auto/lock on hub at all,couldnt find switch on dash for them.
is this auto locking only? or constant 4wd?

Thanks

What modle??

Was it a GQ/Y60 Safari??

They are manual/auto hubs, there are no electronics associated with them what so ever, and Safari's/Patrols are not made with fulltime 4x4 in any modle.

It is more than likely the vehicle you looked at had center caps on the front wheels.

If you removed those center caps, you would have exposed the hub. In the middle of the hub is the head of a bolt the same size as the wheel nuts.

Using your wheel brace or a 21mm socket, you turn this bolt head 1/4 of a turn and it takes the hubs from auto engaging to permanatly locked.

Reverse the proceedure and they return to auto engaging.


Pete.

muttly wrote:can some one help me when i select 4wd hi or low on inside lever i get a continous clicking sound from the front hubs and then i hop out and turn the auto hubs to the lock position and there is no noise do i have a problem and if some one could please explain the purpose of changing the postion on the hubs from auto to lock.thank you

Your hubs are not engaging properly when they are set to auto engage.

This could be through lack of use more than anything.

Pull the hubs off dissasemble and give them a good clean out and lubrication. That would more than likely sort your trouble out.

Its very cery common for auto hubs to cause problems.

For the scond part of your question, when your hubs are set to auto engage, they engauge automatically as soon as the front drive shaft starts to be driven by the gear box after you select 4x4.

When you set them to manual, the are engaged all time untill you turn them back to auto.

The reason why Nissan thoughfully gave you the option to select from both auto and manual opperation of the hubs is that in the Auto position, the hubs can diss-engage under certain off road circumstances.

Circumstances such as when going down hill under engine breaking, or when you are stuck and you haveto reverse then go forwrds and backwards to try to free you self up.

In the latter circumstance, when set to Auto, the hubs engage and then diss-engage with each change of direction. This puts alot of load on the internals of the hub and they can fail quite easily, or refuse to engague again etc etc.

Use the Auto setting for everyday driving and the odd sitiuation which caught you by surprise, like getting stuck on the front lawn after giving it a wash.

For everything else, get out and manually lock the hubs in. If not you will do damage to the hubs.

This could also possibly be your problem, if some one has been doing offroad work with hubs in Auto position, they could have damaged the internals of the hubs, hence why the click. The click being the mechanisim inside trying to engage but sliping as its damaged.

It is more likely that they are fine and just in need of a bit of TLC and a small amount of decent lubrication. Seriously, how often do you think the vehicle was used in 4x4 before you got it??

Pete.

DieselBoy wrote:What modle??

Was it a GQ/Y60 Safari??

They are manual/auto hubs, there are no electronics associated with them what so ever, and Safari's/Patrols are not made with fulltime 4x4 in any modle.

It is more than likely the vehicle you looked at had center caps on the front wheels.

If you removed those center caps, you would have exposed the hub. In the middle of the hub is the head of a bolt the same size as the wheel nuts.

Using your wheel brace or a 21mm socket, you turn this bolt head 1/4 of a turn and it takes the hubs from auto engaging to permanatly locked.

Reverse the proceedure and they return to auto engaging.


Pete.

Its a 1990 (GQ?) High roof LWB Whale

I think it must have a plastic cover over the hubs,only had a quick look.

Does the center diff/transfer box lock up when 4x4H/L is selected?,does it have a manual over ride?

Thanks for info

Shane

Shane wrote:Its a 1990 (GQ?) High roof LWB Whale

I think it must have a plastic cover over the hubs,only had a quick look.

Does the center diff/transfer box lock up when 4x4H/L is selected?,does it have a manual over ride?

Thanks for info

Shane

As i said, Safari's/Patrols of that modle are not made with full time 4x4, so there is no center diff to lock up.

When you move the lever to 4H or 4L you engage the drive to the front wheels via the transfer case.

There is no diff between the front and rear axles, hence the reason why the positions on the transfer lever are 2H, 4H, N, 4L.

2H (two wheel drive high range) would no be an option if the vehicle was full time four wheel drive, and only vehicles with full time four wheel drive need a center diff.

Pete.

O.k thanks Pete I got the idear now

Shane