DIFFLOCKS

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
from a regular desert visitor and traveller ...

Hello Charles.

You may want to post this....

Out in the desert, you will almost never find Land Rovers of any sort or marque. They are too unreliable. The dodgy electronics in Range Rovers rule them out as a car of choice in the desert and the bodywork on Land Rovers just does not last. American 4x4's are too heavy.

In the desert, pretty much the only car you will find is the Toyota Land Cruiser. The type they use in the Sahara generally has the straight six 4.5 litre diesel engine, delivering about 240 bhp with normal aspiration. The low down grunt of these cars is simply enormous. They are light, extremely rugged, and can carry huge loads (1.5 tons is quite normal). And they are simple. When started, you can take the battery out and it will just keep going. The drivers who work out there who I have talked to say they do not know of any case where anyone has had to leave a Land Cruiser out in the desert. There is always some way to get it back home. It is quite usual to see Land Cruisers with over 300,000 km on the clock and still looking like they just drove out of the showroom. They do not have a facility to lock the diffs.

The secret in driving in sand is to have enough power to keep you going when you hit a soft patch. The Land Cruiser certainly has that, which is why locked diffs are not considered necessary. That said, you have to be very nimble in changing down when you hit really soft sand. The Range Rover with automatic gearbox will get through really soft sand that will stop a Land Cruiser dead in its tracks, mainly because the automatic gearbox will keep the power on as the car slows dramatically.

So, for driving in sand, the trick is not to get stuck in the first place. For that you should have as much power as possible and an automatic would help.

Regards,

Geoffrey
 
Charles,
some of the info being given is debatable, from my point of view anyway.
Locking diffs give an incredible difference in off road driving, (standard in pinzgauers etc) I have maxidrives front and rear, dont think they are available any more as the guy has retired. The arb unit works well and is cheaper as well. They will work ok in landrover banjo diffs, but you really need to fit hd half shafts, (try ashcrofts).
A tall ie 235/85 r 16 will go thru sand better and require less horsepower to than a shorter/fatter tyre eg 10R15 ( tests carried out in Oz prooved this) Having difflocks enables you to get good results in sand with a more agressive tread as drive is supplied to all wheels equally. The biggest factor is footprint, and to get this you deflate the tyres. This can be hard on sidewalls so low speeds are better, as welll as sand is usually in hot places. Difflocks overcome a lot of cross axle problems, eg thru creek beds. Withg the front difflock engaged it almost impossible to steer, so you need to decide on your direction before engaging.
as for landcruiers, in heavy sand driving cant run aircon as they over heat. Most are fitted with no spin rear diffs, ie self locking, when one wheel spins. These are ok to start but go out of adjustment fairly quickly if used a lot. Certain models came with lockable rear diff push button on dash They are not light, and their carrying capacity is les than a landrover. i,e, a toyota L/C cannot tow another L/C on a trailer as it exceeds towing limit, up untill the latest models it warns you not to tow in fifth gear (stated in owner handbook) They will not run without battery as from a bout 1985 they had electronic diesel injection control , to switch the inj pump on and off. Sand driving you will get stuck on occasions, usually there is nowhere to winch to and its a major job to dig a hole and bury a spare wheel (old wives tale) especially when its 40+ in the shade.
A couple of ordinary good quality alluminium short ladders work surprisingly well surprisingly well and are a lot cheaper and lighter than psp.
A couple of days with a local travelling on sand will soon get you up to speed with sand tecnique , and knowledge, eg damper sand is easier to drive than dry etc.
The first vehiclular crossing of the simpson was done by series landrovers, as were most other deserts etc , so dont be too worried
JMHO
 
The Toyata Land Cruiser you buy in Egypt is not the same beast at all compared to what you would buy over here. "Air con"? What's that? Never saw an air con. button in an Egyptian Land Cruiser. I have been out and about in the Western Desert three times now and the number of Land Rovers I have seen is exactly two. I have seen just as many Russian jeeps dating from the 50's or 60's, when Russian jeeps and Pugeots were what one took out into the desert if one had any sense. Land Rovers have never had a good reputation as a desert vehicle. As a matter of interest, the vehicle of choice for the first exploratory crossings of the Sahara desert were Model A Fords....

Yours aye,

Geoffrey
 
IIRC the first vehicle to cross the sahara was the citroen halftrack in 1923

Perhaps it was, who knows, but camels had been doing for a while before then!

The fact remains that what Geoffrey said is true ... "As a matter of interest, the vehicle of choice for the first exploratory crossings of the Sahara desert were Model A Fords...."

WHY that is so, or even if they were the best for the job is not the point.


CharlesY
 
Back
Top