Mud-club
Vehicle & Technical => Discovery => Topic started by: martyn on September 27, 2007, 19:43:18
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Hi my Disco 2 LPG system has finally beaten me so i'm going to try to remove it .
Does anyone out there have any idea where to start ?
What about the electrics?
Or is it just better to take the tank out of the boot and leave the rest in situ? vapourisers etc.
I know i will have to be careful wearing eye protection and gloves etc.
Any help would be appreciated.
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Gas systems vary a hellava lot.
But if you can drain the tank of gas it would be better than leaving it charged
There should be a stop valve on the tank so unscrewing the pipes from it should not cause a leak
You will have a change over valve for the fuel to deal with, and de plumbing the engine cooling system fromt he evaporator
Pretty straight forward once you have disconnected the pipe from the tanks
It depends on what you are doing with the system when removed
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The system is AGS Dutch make.
How do i discharge the tank? I thought that just driving it until it was empty would do.
Going to Ebay it
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Why don't you let a pro fix it? It'd pay for itself in a few tankfuls. Or if its been condemned (as in "you don't want to start from here..") is selling it on really a good idea!?
cheers, Ross K
p.s. forgot the useful part! Drive till empty is fine to empty the tank, but do expect residual pressure in there and any pipes you disconnect. Disconnect nothing in the garage, do it outside and well away from drains (lpg is heavier than air ..)
Electrics should just strip out easy, connections to coil battery etc just come off. With one exception - somwhere it must diable the petrol system. On a carb engine, there will be a solenoid in the petrol line. Remove it and link the pipes back together properly. On an injection system it will be interrupting the injectors somewhere ... anywhere ...
There might be a box or two with a spider web of cables plugged between the original injector wiring and the injectors themselves. Removal is easy.
-Or- there might be two boxes with a spider web cut and spliced into the original loom. You should be able to pair up the wires e.g blue goes with blue/black, red with red/black etc. You'd need to cut and link these pairs to restore normal injector supply.
-Or- there might be a relay or a pair of yellow wires out of the gas ECU or suchlike, which somewhere (maybe around the head, maybe on the bulkhead, maybe under the drivers seat) will interrupt the brown-striped-orange supply to all injectors. You need to cut and reconnect this together.
Good Luck.
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Actually re-reading this is a Disco 2, and I'll bet you have a single point system that's been bursting air boxes etc. No wonder you're fed up with it, hopelessly unsuitable cheapo conversion. "You don't want to start from here.." indeed. Sell it on to a carb user!
You could upgrade to injection front end and keep the tank(s) but it aint cheap, need to do say 15,000 miles to break even on that.
cheers, Ross K
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all you need is an upgraded system the p38a range rover had these problems but run fine on muti-point injection. plus u get 30 mpg .
talk to a lpg expert there point u the way foward. if u can cope with 28 miles on a tenner so be
plus with newer laws comeing in lpg is the way foward
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If you keep the tanks then about £900 buys a damn good multi point like mine, both JJ and I bought ours from a guy called Mark Wayne on E-Bay (I can get you the number if you pm me) and I'd thoroughly recomend him.
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This is a multi point system with two vaporisers but it runs like a bag of sxxx.
.If its driven hard it seems to be ok but when its just coasting along it runs like its missing i have changed the plugs + leads (top job) gapped the plugs 30tho new air box new k+n had the vaporisers cleaned and serviced also filters cleaned.
No one local knows anything about AGS system ive paid out over 2k on this car it runs like a dream in petrol tho