air compressor

[colintandy]

looking at fitting on board air wanna do myself gonna need some direction from any one do they sell an air compressor that i can fit onto the top of engine to run to the lower pulley ect.. im sure ive seen that some place ...like the ac system any pics would be great ..went to local bp today to check tyre preasures and some CHAV has gone and cut the pipe at the nozzil the next garage was missing and so on and on...its driving me nutts least i can do me own then and can convedently air down when off roading and air back up ! :D

[TimM]

Would it not be easier to buy a 12V compressor and carry it in the back? Less than £20 for some, a relatively disposable price, no extra work for your engine (running the compressor all the time) and easily transferrable vehicle to vehicle - either when you swap cars, or if you have more than one car.

Just a thought  

[Damonski]

Ive seen some pics of a disco with a air compressor behind one of the boot side panels, unsure what purpose it actually served but a spin off was that it could be used for tyre pressures.

personally I prefer and use the 12v portable compressor idea.   For mine I chopped the lighter plug off, extended the cable and use a 12S plug and the permanent live feed on the 12S socket.  Dont know how that is rated on the normal L/R wiring, but I have a 30amp cable running there.  All my accessories have 12S plugs on them  :)

[ChrisW]

I believe Wizard set his motor up with a small tank and take-off on the rear end all served by a standard Discovery air-con compressor.

[Range Rover Blues]

The downside of an AC compressor is that it won't fit if you have AC already.  They have in internal clutch so that the load can be taken off the engine when not in use, that's how your AC switches off!  Off course on the V8 you also have to run the water pump belt tight which can make it wear faster and the compressor needs oiling if you want it to last.  On the plus side they inflate tyres damn fast I'm told, just watch the pressure.  Personally I've got an ARb comppressor in the boot now, I just need the kit to attatch it to the tyres.

[Les Brock]

Hi

See my post here

http://forums.mud-club.com/viewtopic.php?t=15572

Ok its in a Hybrid but its a disco engine and give you most of the info

Regards

Les

[Bulli]

Arb compressors are good, they will happily bring big tyres back up to road pressures. Continual run time of 50 mins...
I think the one with the compressor in the boot was an arb...the only trouble with having the compressor is its so tempting to get the lockers aswell!!!

[waveydavey]

You may find that the main reason for fitting a permanant engine driven compressor would be for coupled brakes on a very large trailer (Truck style).

It does seem a little excessive for inflating tyres?

[wizard]

My on board air system is still going strong after several years.
If you have air con fitted you will have to run an electric compressor, you will also need a tank to store the air in because air con compressors are high pressure but low volume.
I put a 2 gallon tank under the body usually where LPG tanks go. You can get the required pressure switches from RS for about £20 each.
A bit of high pressure air pipe and a few quick connectors and you are in business.
I found that the hardest part was making up the bracket and tensioner for the AC compressor.

Regards
wizard :twisted: