4wd

[(RIP) PLANK]

This is my understnding, i am ready to be proven wrong again
doesnt the greed 4x4 light only show the posiiton of te geearbox, regardless of the hubs?

I once ran a T2 with no snp rings, Shark1e came in it with me to milner off road to collect manual hubs, and we made the downlaod for fiting them.

I am sure it still iluminated the green light on the dash with no snap rings at all, so i would allways reverse just for my own peace of mind, as there is no visual indicator of the hubs being engaged or not.

For me this is a wek point and once the auto hubs have started acting up i would go for manuals so the guess work is gone and you can relax, knowing you definately have 4x4 when you need it.

 

[lacroupade]

This is my understnding, i am ready to be proven wrong again
doesnt the greed 4x4 light only show the posiiton of te geearbox, regardless of the hubs?

I once ran a T2 with no snp rings, Shark1e came in it with me to milner off road to collect manual hubs, and we made the downlaod for fiting them.

I am sure it still iluminated the green light on the dash with no snap rings at all, so i would allways reverse just for my own peace of mind, as there is no visual indicator of the hubs being engaged or not.

For me this is a wek point and once the auto hubs have started acting up i would go for manuals so the guess work is gone and you can relax, knowing you definately have 4x4 when you need it.

Not sure of you mean gearSTICK Plank or front diff.

I'm just trying to work this one out....I've got fixed hubs and the light comes on immediately you put the stick in 4WD but sometimes lingers when you put it back to 2WD...usualy goes out when you change gear or dip the clutch, so not quite sure where the sensor I assume that its looking at is.....

 

[(RIP) PLANK]

well, i am thinking that the green 4wd light is atatched to a switch on the transfer box? or even if on the front diff, it certainly isnt operated by the hubs is it? i have seen no wires in there.

it may be as simple as this - you shift transfer lever, it operates switch and light comes on, if so then it would do this regardless of wether hubs are working or not, as is the case when brake rings are knackered.

hence my assuming the green light doesn't give a reliabel indicator of 4x4 actualy working, just that you have shifted the lever?

 

[lacroupade]

well, i am thinking that the green 4wd light is atatched to a switch on the transfer box? or even if on the front diff, it certainly isnt operated by the hubs is it? i have seen no wires in there.

it may be as simple as this - you shift transfer lever, it operates switch and light comes on, if so then it would do this regardless of wether hubs are working or not, as is the case when brake rings are knackered.

hence my assuming the green light doesn't give a reliabel indicator of 4x4 actualy working, just that you have shifted the lever?

I'd have to agree - wherever the sensor is I'd be fairly certain its not in the hubs so the light only indicates that that 4WD should be working....prob in the diff as you suggest...but that still makes me wonder what it is that reverses and makes it go out.....one of lifes mysteries until an eggspurt comes along....:augie

 

[(RIP) PLANK]

I'd have to agree - wherever the sensor is I'd be fairly certain its not in the hubs so the light only indicates that that 4WD should be working....prob in the diff as you suggest...but that still makes me wonder what it is that reverses and makes it go out.....one of lifes mysteries until an eggspurt comes along....:augie

i bleive that when you disengage 4wd the lack of resistance from the now 'free' drive shafts allows the brake rings to disengage themselves.

The puzzel for me is this

ealry t2 auto hub

late t2 fuxed hub

don't they both really engage and disenge at the transfer lever, and the auto hubs just save fuel, by not rotating the drive shafts? in' which case there is no diffrenece in the two other than the hubs?

so fitting manuals and leaving them locked, would have the same effect as the fixed hubs on the later t2? simply switching in and out with the lever?

 

[lacroupade]

i bleive that when you disengage 4wd the lack of resistance from the now 'free' drive shafts allows the brake rings to disengage themselves.

The puzzel for me is this

ealry t2 auto hub

late t2 fuxed hub

don't they both really engage and disenge at the transfer lever, and the auto hubs just save fuel, by not rotating the drive shafts? in' which case there is no diffrenece in the two other than the hubs?

so fitting manuals and leaving them locked, would have the same effect as the fixed hubs on the later t2? simply switching in and out with the lever?

No unless I misunderstood it, with the fixed hubs, the whole shebang is rotating up to and including drive shafts, thus giving you crappier fuel consumption (which I'd puzzled over for 12 months!) - engagement takes place when the diff gets drive I think....

 

[(RIP) PLANK]

No unless I misunderstood it, with the fixed hubs, the whole shebang is rotating up to and including drive shafts, thus giving you crappier fuel consumption (which I'd puzzled over for 12 months!) - engagement takes place when the diff gets drive I think....

exactly, the same as an older t2 with manual hubs in the locked position, when the transfer lever s set to 2wd the forward motion would turndrive shafts and everyhting else

dont auto hubs just lock the and unlock the wheel as a response to the engament of 4wd at the transfer box and there only function is to prevent rotating all the parts when not in 4wd?

the hubs themselves dont drive the wheels they just lock the conection between drive shaft and road wheel surely

 

[lacroupade]

exactly, the same as an older t2 with manual hubs in the locked position, when the transfer lever s set to 2wd the forward motion would turndrive shafts and everyhting else

dont auto hubs just lock the and unlock the wheel as a response to the engament of 4wd at the transfer box and there only function is to prevent rotating all the parts when not in 4wd?

the hubs themselves dont drive the wheels they just lock the conection between drive shaft and road wheel surely

I do believe you have it in one old chap!:thumbs Thats why I've never understood the infatuation about manuals though - cos the hubs aren't under any strain in normal operation, the rings are just an engagement mechanism and aren't under any load after that - people just sometimes manage to break the rings by twatting about somehow.:lol

 

[(RIP) PLANK]

I do believe you have it in one old chap!:thumbs Thats why I've never understood the infatuation about manuals though - cos the hubs aren't under any strain in normal operation, the rings are just an engagement mechanism and aren't under any load after that - people just sometimes manage to break the rings by twatting about somehow.:lol

well i have had autos fail, and throwing brake rings them didnt help, and the green indicator means nothing!

I find manuals give great peace of mind, you know you have 4wd when you need it!

I am in off road locations, alone, almost every day, the RAC wont help you if you get stuck and it would be a whloe lot of hassle to get dragged out.