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Old 08 February 2007, 16:26   #11
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Originally Posted by Biggles View Post
Doesn't your vehicle have some sort of system that you can switch in when towing from start off that stops the auto box kicking in to 2nd. My mates Toyota does and it stops the vehicle struggling because the gears have changed too early.
Yes it does, but I'm wondering if there's an advantage to starting in 2nd i.e selecting 2nd on the auto box.
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Old 08 February 2007, 16:34   #12
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Don't know about your setup but starting off I doubt it will select a higher gear just because you have put it into 2nd. When you are going down a slope or even just slowing for a junction etc then changing down the box manually can be a big help.
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Old 08 February 2007, 16:59   #13
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Don't know about your setup but starting off I doubt it will select a higher gear just because you have put it into 2nd. When you are going down a slope or even just slowing for a junction etc then changing down the box manually can be a big help.
D'oh... of course the car will always start off in 1st no matter what you select. Thanks for reminding me!

Sounds like there's an advantage to locking it in 1st.
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Old 08 February 2007, 17:15   #14
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D'oh... of course the car will always start off in 1st no matter what you select. Thanks for reminding me!

Sounds like there's an advantage to locking it in 1st.
Yes there is - it means that the box won't change up just when you don't want it to - just use it like a manual without a clutch.

I THINK some of the newer discoveries and Rangies will actually lock into whatever gear you select but not sure.
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Old 08 February 2007, 17:35   #15
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Originally Posted by Biggles View Post
Mine is an absolute b----- to steer at slow speeds in 4 wheel drive on tarmac. In fact you can't steer it.
Ok, here is the instructors explanation. I'll try and keep it simple. All four wheel drive vehicals will have three diffs. Front, center and rear. A font and rear diff allows a variation in speed between the wheels on the same axle, thus allowing the car to turn a corner. The center diff does the same thing but allows a variation in speed between the front and rear axles for cornering. The rear of the vehical will allways track differently from the front, the longer the vehical the worse the track(an artic going round a tight roundabout for instance). Ok, permant 4x4 ie Landrover works using this system. But take one wheel off the ground and all the drive will take the path of least resistance ie 1 wheel drive. Engage the diff lock and drive is then locked 50% front and the same rear. But you wont have a speed differential for cornering and this is why it is difficult to steer. The problem is that not only are you damaging your tyres but you run the risk of transmission wind up. In other words the diff will explode You may also find that yur 4x4 lever cannot be disengaged, if this is the cas just select reverse and unwind the diff.

We could then go onto talk about traction control and rear diff locks on certain vehicals.

As for training, well I might be able to sort a level 1 course out in the north notts area for a small contribution
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Old 08 February 2007, 17:56   #16
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Ok, here is the instructors explanation. I'll try and keep it simple. All four wheel drive vehicals will have three diffs. Front, center and rear. A font and rear diff allows a variation in speed between the wheels on the same axle, thus allowing the car to turn a corner. The center diff does the same thing but allows a variation in speed between the front and rear axles for cornering. The rear of the vehical will allways track differently from the front, the longer the vehical the worse the track(an artic going round a tight roundabout for instance). Ok, permant 4x4 ie Landrover works using this system. But take one wheel off the ground and all the drive will take the path of least resistance ie 1 wheel drive. Engage the diff lock and drive is then locked 50% front and the same rear. But you wont have a speed differential for cornering and this is why it is difficult to steer. The problem is that not only are you damaging your tyres but you run the risk of transmission wind up. In other words the diff will explode You may also find that yur 4x4 lever cannot be disengaged, if this is the cas just select reverse and unwind the diff.

We could then go onto talk about traction control and rear diff locks on certain vehicals.

As for training, well I might be able to sort a level 1 course out in the north notts area for a small contribution
Good explanation thanks. PM sent.

Cheers

Rich
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Old 08 February 2007, 18:38   #17
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I'm sure on Shoguns I have seen you can select 4wd high range WITHOUT locking the centre diff which is basically the same setup as in a Land Rover without the diff locked - this is what I would use in any mildly slippery conditions, and lock the centre diff if it gets icy.

So you should have four settings

2WD high range
4WD high range, centre diff open
4WD high range, centre diff locked
4WD low range, centre diff locked

Some also have a rear axle diff lock but really that is for off road use only unless trying to get out of a ditch or something following an unscheduled "off"!
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Old 08 February 2007, 22:17   #18
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I think it depends on the age of the Shogun.
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Old 09 February 2007, 02:16   #19
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Ok, here is the instructors explanation. I'll try and keep it simple. All four wheel drive vehicals will have three diffs. Front, center and rear. .....:
Is that true? As a Land Rover Experience instructor...how much do they teach you about vehicles?
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Old 09 February 2007, 03:24   #20
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I'm sure on Shoguns I have seen you can select 4wd high range WITHOUT locking the centre diff which is basically the same setup as in a Land Rover without the diff locked - this is what I would use in any mildly slippery conditions, and lock the centre diff if it gets icy.

So you should have four settings

2WD high range
4WD high range, centre diff open
4WD high range, centre diff locked
4WD low range, centre diff locked

Some also have a rear axle diff lock but really that is for off road use only unless trying to get out of a ditch or something following an unscheduled "off"!
Stephen

This is how both my Manual Shoguns have been.
basically you go up the lever the more stuck you get, then push the rear diff lock button as a last resort.

Some of the special edition Shoguns like the slightly cheaper 'Field' ones do not have the diff locks. When I brought my latest one the Mitsubishi saleman couldn't understand why I wanted a normal vehicle he had with the diff locks instead of the special edition which had a leather interior. Dick head!

For towing its reccommended to use 4WD High.
I also use 4WD High for general use on rough roads, grass and snow.

I have only got to the point of pushing the button a few times, once when both car axles and the boat trailer axle were burried deep in Hayling Island beach. Dragged itself, the boat and trailer out no problem.

Nasher
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