How do you un-wind a diff??

[carbore]

Sorry what I was asking is what happens if you push the yellow lever in (4wd engage) with the red lever forward (high range).

I diddt see a reply to andy B's post on that one. (which I agree with) Currently my unerstanding is you are putting it into low and then putting it into 4wd but I could just be getting confused.

PS I was in Cirencester yesterday, used to work at QA in the Castle and have a few mates in Ciren.

[Rich_P]

Yellow knob should not stay down if pushed down when the red lever is in neutral or fully back, as in neutral or low range the transferbox engages four wheel drive automatically.

[stratie]

Now try that without the front prop on and then we'll know if it's the diff or the transfer box :)

Okey dokey sir, im on it.....well i will be after mw weetabix  :D
I'll let you know how i get on in an hour or 5.
Cheers mucker.

Carbore, i remember playing in that castle  (when it was empty) when i were a nipper. Creepy i tell ya.   

 

[stratie]

Ok the front prop is now off. I stuck it in low box and drove up and down the drive, and it all seem's fine.
So i think it's safe to say that it aint the transfer box.

I found some numbers on the diffs....
Front...22 57
RC1848cA-
W8G  27-12

Rear....18 E
   476133
JWSG 27-12


Dont quote on them number's, but thats the best i could make out.

I guess the next thing to do is pull the front diff out?
Will i have to drain the oil first?

Thanks for all your help fella's.
You lot Rock 

[carbore]

I dont understand why disconnecting the front prop would rule out the transfer box. If the front drive on the transfer box is out of synch with the rear drive (i.e. knackered) then disconecting that prop will make  any symptoms go away

Or am I wrong (im no expert on these things!)

[stratie]

I dont know any thing, any more  :lol:

All this just trying to help some old fella out. Still, thats what landrover owners do 

[Rich_P]

The transferbox operates with a dog clutch.  It either engages or does not.  I do not think it would give different rates of drive from either end, and the transferbox is bloody strong (arguably stronger than any of the others that were in Land Rovers).

[Oddball]

If im correct in thinking it has no centre diff (and I could be wrong) then it shouldnt be driven on hard surfaces in 4WD as it causes transmission windup. With no centre diff its slippy surfaces only, same as my lux. Sounds to me like theres no fault......

[Rich_P]

You can drive on hard surfaces when in four wheel drive, but if you corner then the transmission may begin to "wind up".  It's said in the manual that low range may be needed when pulling a heavy load uphill, and that by doing so you engage four wheel drive so run the risk of increased tyre wear more than anything.

[stratie]

If im correct in thinking it has no centre diff (and I could be wrong) then it shouldnt be driven on hard surfaces in 4WD as it causes transmission windup. With no centre diff its slippy surfaces only, same as my lux. Sounds to me like theres no fault......

Well some thing isn't happy, and it's all pointing to the front diff. Look's like it's going to have to come out so i can take a butchers at it.

[stratie]

It's fixed..........at long last  :lol:

After trying every thing (well all most every thing) i took the truck over to my mates farm, and ragged it around a wet field in two wheel drive. Hey presto, it worked  :D

[Chris Putt]

Stuck in 4wd then?

[stratie]

Stuck in 4wd then?

No mate, it would seem that the front diff was wound up.
I got it over to my mates farm, and his dad who has been around land rovers for many years said....

You can try it in reverse (on wet grass) but you still, but if you go to far you still run the risk of winding the diff back up.

Then he asked if i had jacked up four corners at the same time, then spin the wheels. I told him i had only done one at a time.

He said to drive it around (the wet grassy field) turning from left to right and get the wheels spinning.

So i did. I guess i must of span around said field for about 10 minutes. Hard left,hard right hard left hard rifgt ect ect.

When i got back to the yard, he told me to try the low range (red lever) and hey presto, it worked. No more jerk jerk jerk.
The he said to try 4 wheel drive (push yellow  lever down) spot on  :D

The old boy has now got the truck back, and i have now got my LWT back.....Happy days!

He asked me how much he owed me? I said....you owe me nothing mate  ;)

Then we sat down to a nice hot brew, he then said.....
Im 72 years old (he looks no older than 50, but he moves around very slow) my driving days are all most over. If and when i cant drive no more, would you be happy to take on my land rover?

I was gob smacked.

[topless matt]

From what i can gather from this thread, i would say that one diff is a different ration than the other, this would give all the problems you say.
high 4x4 would be worse as the wheels would be turning faster!  :twisted: