Because their tow hitch with a built in stabiliser won't fit properly on a standard tow ball. If it did then it wouldn't work properly as a stabiliser. You could ask why aren't all tow balls made to be suitable for Alko stabilisers. They would still work with non-Alko hitches and there would be...

I'm pretty sure my tow ball is a proper Alko one, but I'll be checking now before I tow the caravan again

Bad earth

Who refitted it? You or the guy who reconditioned it? If it was you then double check the electrical connections, are they all secure? If it was the bloke who reconned it then get him to fix it

What does it do?

My Disco didn't have locking wheel nuts. But that didn't stop a tyre fitter once spending 15mins searching for the key before ringing me to ask where it was.

How did it go? Are there any pics?

I've just got 500 miles from a full tank. That's mostly a 20 mile each way commute, half motorway, a quarter main roads and a quarter town driving.

It's upside down, no wonder it doesn't fit

Camshaft sensor foobar. Been covered many times do a search

Unless your shocks or springs are knackered I can't see any reason to make changes, even then I would just replace with standard kit.

When you go to check it out start by looking at the things you would on any car Has it got a service history, does everything work - electric windows, central locking, sun roofs etc, are there any warning lights on that shouldn't be. Does it stop in a straight line, any nasty noises, does it...

You aren't really embarrassed by it are you?

Do TD5s have a lift pump that could be packing up, like they do on a 300 TDI?

Without

Could you try again but in English please?

If you put it between the air filter housing and the turbo then there won't be any pressure to deal with

It seems you aren't the only one looking for them http://www.landyzone.co.uk/lz/f8/4x4-specialist-211244.html

If you aren't going t do the leak back test yourself then I can recommend these people City Electro Diesel in Cardiff

You need to find club that runs tyros, they are for standard Landys