alt.fan.landrover - The Newsgroup's Frequently Asked Questions

Discovery Series I FAQ

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1. My bonnet flutters at speed. How can I stop it?

Adjust the two rubber stops at either side of the bonnet. They are threaded into a rivnut in the bonnet frame and locked with a locknut. On later models the rubber stop has a thread moulded onto it and threads straight into the bonnet metalwork. The rubber does go hard after a while, but replacements are cheap to buy new.

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2. My cruise control has stopped working, any suggestions?

Check the cruise control vacuum hoses, it is likely that one of them has split.

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3. Why do the indicators stay on for 10 seconds when arming the alarm instead of flashing 3 times?

The batteries in the key fob are going flat.

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4. What fuel consumption should I expect?

TDI 28-32 mpg - 9 to 10l/100km V8 14-16 mpg - 18 to 20l/100km

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5. The transmission on my Disco is clunky. What's causing this?

It could be a number of things, but the most likely is either the diffs, the Universal Joints, or the gearbox. Chock the front tyres, jack the back up and spin the rear wheels by hand. If you look inside the gearbox inspection cover, you will be able to see what is going on. UJs and Diffs are fairly easy to troubleshoot visually. Remember, a worn UJ can cause a lot of damage if it fails. Early LT77 gearboxes had a known issue where a gear inside the transfer box blocked oil flow to the splined drive shaft inside the gearbox. This caused the splines to wear rapidly, leading to clunky / noisy gearchanges, particularly noticeable in low gears. You can replace the transfer box gear with a drilled equivalent, which will stop the problem getting any worse, or if the damage is already done, replace the entire gearbox, either DIY or through a specialist such as Ashcroft.

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6. My handbrake doesn't seem to be working properly.

Check it fully by parking on a hill, with no traffic around you, and you may well find that the transmission lock on the handbrake actually works fine. The less-than-positive feel of the handbrake lever itself may just give the impression that it's not working very well. Remember that the transmission lock works mostly like a toggle - it's on or it's not.

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7. How deep can I wade my Disco?

In all models, the air intake is inside the nearside front wing, so if the ambient water level (as opposed to the bow wave) reaches the wing, you're in trouble. However, V8s may already be coughing by this time, so you stand a reasonable chance of conking out before too much damage is done. Diesels will go all the way until water flows in the intake, then the engine will "hydraulic", a very costly situation to be in. If your diesel starts gobbing black phlegmy soot out of the exhaust, you are very close to catastrophe. Fitting a snorkel, and extending the gearbox / axle breathers to the new air intake level, will help this, although remember your CD player will be next to go.

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8. Can I fit LPG to my Discovery?

Yes, of course, but you will need to decide where to fit the tanks. Underslung tanks will seriously compromise your ground clearance, although they make an interesting alternative to hard sills. Boot-mounted tanks will lose your boot space. It's possible to use smaller underbody tanks but these will usually have lower capacity. Replacing the fuel tank, and relocating the old tank, is another option.

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9. Where should I mount my CB aerial?

You have a number of choices, depending on whether you want to drill the bodywork, but remember the Disco roof is steel, so a magmount will work on the roof - the lower front part is less likely to lead to the magmount being knocked off. Mirror mounts can be used on the (steel) roofbars, but may be ripped off by trees. If drilling is your thing, put the aerial wherever is most convenient, bearing in mind you will not want a twanging aerial to hit the bodywork frequently. Remember you will need a springy aerial if you plan to use it off-road.

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10. I have 2 lines of rust running above the crossmembers underneath my boot carpet. Why is this and what can I do?

This is a common problem caused by a water-trap above the crossmembers. You have 3 choices:

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11. My light lenses are broken. They look strangely familiar. Is there a cheap way of replacing them?

Yes, you can cannibalise them off a Maestro van.

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12. My dashboard is delaminating!

A known issue. Land Rover were replacing these under warranty so you should contact them and persevere for a replacement.

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13. What resources are there on the Internet?

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14. What oil should I use in the R380 manual gearbox?

Land Rover currently recommend MTF94 for topping up and replacement.

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15. What should I look for when buying a Discovery?