The Insider's Guide to Uganda
 
 
 
Entebbe Int'n Airport
Directory
Advertising
What's On
The Eye Maps
 
3.jpg  (54424 bytes)    
Driving - Mud Glorious Mud

 

Although soil conditions may change from heavy clay to the renowned “black cotton”, dealing with mud is approached in much the same way. The only difference really is how your tyres will clog up.

Dealing with shallow mud, 2 inches deep or less, first. The ideal situation is to have the full weight of the vehicle pushing your tyres through the mud and attempting to grip onto the firm ground underneath. Ensure you tire pressure is not to low otherwise you will spread the weight of the vehicle and not get maximum traction. The second consideration is speed.

A general scenario is that after a long dry spell the murrum roads have a nice covering of fine dust. It rains overnight leaving a lovely slippery covering of mud. Vehicles then come down the road at too high a speed not giving the tyres a chance to bite through and all at once you’ve got vehicles sliding all over the road, into ditches or worse, into each other. Some may have engaged 4WD but still they are still sliding. Some may have engaged and slowed down a little but still sliding….. What to do then? The slide that the vehicle is in is basically a front wheel skid and at times it can be combined with a rear wheel skid. You have to get rid of the front wheel skid first.

Symptom of a front wheel skid is you turn your wheels to steer but the vehicle is still going straight or sideward! Cure is to get off the gas. Release the accelerator pedal gently to get the vehicle to slow down. Once the vehicle has slowed down the front wheels begin to regain traction and will pull the vehicle in the direction they are pointing. You need to be aware of where your wheels are pointing at all times. It’s very easy to loose this sense when you’re in a skid and / or travelling through muddy areas. Don’t brake, as this will make the situation worse.

Preparation is the key and starts with checking the depth of the mud BEFORE driving in to it. You may know the road and are aware that it’s only going to be shallow. In this case select 4WD. Those with free wheeling hubs have to get out and lock them into position first. Select 4L and engage first gear to start with. Release the clutch pedal all the way. (Don’t control the speed with the clutch) and let the vehicle crawl through at a very slow speed ensuring that those tyres are biting though effectively. If the road is straight keep wheels straight. This technique may differ slightly when climbing and certainly when descending steep muddy hills. When ascending you may need to add a little accelerator to help the vehicle climb but not too much so as that the wheels spin. When descending you may find that the vehicle starts to slide even when you’ve got yourself into the correct gear to allow sufficient engine braking to control the descent without touching the brakes. In this case gravity is pushing the vehicle down the slippery slope at a faster rate than the wheels are turning; so the only way to get the wheels turning faster is yes, to press the accelerator. Sounds strange I know but it does work.

Crossing deeper mud is a different technique all together and you have other considerations to take into account. Again start with preparation. Get out and check the depth. Give it a good poke with a walking stick and check the whole stretch. This may mean you will get your boots dirty. So it’s good to have a pair to do this with that you won’t be driving with after. The few minutes that you spend checking are invaluable. It can save hours of recovery! Once you’ve checked be sure that your vehicle has the capability. If unsure do not attempt to cross unless it’s imperative that you have to. Factors that can affect your capability are tyres, ground clearance and driving skill.

Basic pointers to check. See that there are no deep ruts left by larger vehicles in which your vehicle can get “hung up” i.e. the ruts are too deep and the centre portion catches on the axles.

The depth of mud and its consistency is a factor about which type of speed to go through at. Generally speaking you should be in 4L. As higher gear as possible to allow momentous travel through with no engine labouring. No.2 or 3. You need to push your way through with minimum wheel spin using the torque of the engine not power. Spinning wheels are losing traction!! Foot off the gas a little will help. Throttle control and an understanding of vehicle language are paramount. If you feel that the vehicle is not moving forward do not persist. Ninety percent of the time if you select reverse you will be able to get out the way you came in. Keep your wheels straight. Wheels at an angle to the direction of travel will add resistance to you going forward.

Type of mud and its consistency is another factor. Mud that has no liquid is worse as this causes the mud to clog up tyres easily and unless you don’t have a set of Pirelli Scorpion Muds or equivalent that have a self-cleaning tread pattern you may not even have a chance. Mud with liquid is a little bit easier as the water helps “clean” the tyre as you go through. Generally normal highway tyres may not stand a chance in the 2 situations above.

I hope that this information will be of some help, especially as the rains seem now to have set in.

Drive safe. Stay safe.

 
 
 
   
 
   
Home | What is on Guide | Advertisers | Past Issues | Advertising | The Eye Maps | Entebbe Airport | Contact Us
©2001-2010 The Eye Uganda. All Rights Reserved.