I reinstalled the front propeller shaft today since the previous owner took it off.[xx(] When I tested it and put the gear lever to 4x4 Hi range, It felt like the axle was braking/holding the movement. THe only to cure it was to put it back to 2WD and back to 4WD then I could drive normally.
Then I tried 'climbing' a few curbs (tall ones) in the front of my house with 4WD lo range, it worked fine until I got off the curb then I felt the 'braking' again, then 'recycled' the gear then it was fine again. I assure you the brakes are fine and I believed the braking come from the axles(s). Is this the normal characteristic of the drivetrain? Would this be some type of drivetrain braking mechanism when decending on a steep hill?
I reinstalled the front propeller shaft today since the previous owner took it off.[xx(] When I tested it and put the gear lever to 4x4 Hi range, It felt like the axle was braking/holding the movement. THe only to cure it was to put it back to 2WD and back to 4WD then I could drive normally.
If the previous owner (and you afterwards) have driven the truck more than a few miles/kms without the front driveshaft in place, you have most likely seriously damaged the internals of the transfer case.
It is the front drive shaft which drives the lubrication pump; and without it, your internal gears will run dry and be damaged.
This may be what you are experiencing now.
Also, if you are attempting to run in SA or GA on dry pavement, you will experience a similar phenomenon due to "wind up" of the axles.
Yes I am aware of the situation, but it seems like the previous owner was aware as well, when I got the truck, the lever was always in the 4wd high range, any other time ... who knows [xx(]
But as I said, it runs normally, I just noticed one thing, the 'braking' only happens when I switch to 4wd from dead stop, if I do it when the car is rolling, no problem whatsoever. So, at least there's is a 'pattern' [:D]
Or it could just be normal driveline wind-up from driving with 4x4 engaged on dry road.
Try doing the same thing on a surface with less traction. Like grass, sand or gravel.
On dry road, the transfer case should be in "S" (Strasse = street). The 460 is not designed to drive in 4x4 on dry roads.
__________________
-=- information wants to be free -=-
http://www.g-wagen.no/
Yes I'll try that on a loose surface when I get the chance. I suspect it's the axle wind-up as you and Dutch said.
What will it do to the axles & t-case if we use GA for a prolonged use on dry surface? My guess is that as long as we keep it straight it should be ok? I'm thinking of using GA during adverse wheather condition such as that of slippery road on a rainy day.
Prolonged use will lead to premature failure of transfercase at least. The problem with the G is that it may run for ages even if damaged, and when it finally gives in, it will be _very_ broken...
Also, I do not think it is a good idea to use any of the 4x4 levels on solid surface road, even if it is raining. We do get a lot of rain here in Norway in autumn, and I have never really needed 4x4 on dry road.
Another thing to concider is that whenever your car is in 4x4 the brake power will be distributed 50/50 between front and back axle. If you have to make a panic stop from 80km/h on a wet road, you will spin, and you do not want 2.3 tons of steel to go astray on a crowded road.
NEVER use SA or GA on any hard surfaces! - Dry or wet.
There is almost no advantage in using SA on wet streets. GA is out of the question anyway because it is low range with too much torque for slippery roads.
Using SA on muddy off pavement roads is OK - on snow as well.
Both SA and GA were designed with off-road situations in mind only. For street use the 460 has the 2WD setting.
Will there be damage to the drive components? Yesyoubetcha! Expensive too.
To make SA and GA (4WD high and low) available for everyday driving the 460 was replaced by the 463 series with full time 4WD.
The advantages of full time 4WD (or part time 4WD for that matter) are completely over rated and mostly misunderstood.
Do they offer safety? Nope!
Do they offer convenience? Yes, some.
Don't use 4wd unless you're on a loose surface. For rainy pavement, you're better off with the right tires than using 4wd. Search the forum for recent posts on drive line wind-up.
Is there any chance that the gear ratio was changed in the rear axle? If the PO was too cheap to swap gears in the front axle too he might have just pulled the DS to prevent accidental damage from using two different ratios in the two axles by using 4wd by accident. It's a stretch I know, but I can't think of anything else that would cause a "braking" sensation.
I had to guide someone else through the non use of part time 4WD on hard surfaces today. So, here again is the engineering background: http://4x4abc.com/4WD101/def_turn.html
Having never driven my G on the road in 4WD to test for wind-up, I do know it took nearly a mile to wind up a R*ver product in 4WD on unyielding tarmac - so I'm not sure you can wind a G up that quickly but up and down the kerb will certainly give it chance to unwind (see below).
Sure test for wind-up is to drive it until you think it's winding up, stop and jack up one wheel (stand back!) it will un-wind with a loud bang and the wheel will spin backwards so LOOK OUT!.
Linear Mode
