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This Article was reproduced with the kind permission of CHRIS PERFECT

The biggest problem is the space needed for an LPG tank, which come in a range of sizes. Underbody tanks can be fitted - eg two 30-litre units can be fitted under the sills of a Range Rover, or special ones in place of the existing petrol tank. Even though the system will always start on gas, a petrol supply is still needed for emergency and setting up. I chose a 100-litre tank that fits horizontally behind the rear seats. An alternative was an 85-litre unit alongside the spare wheel. The tanks are automatically limited to an 80 per cent fill, to leave expansion space, so my 100-litre unit is actually 80 litres or 17.6 gallons. I will give details of my consumption as time goes on.

The kit comes in a divided box with one side holding all the rear end items for installing the tank with the external filler, nuts and bolts etc. The other box holds all the supply and special feed pipes plus solenoid valves, wiring loom, fixings, cable ties, switches and the vaporizer. The vaporizer has engine cooling water directed through it to prevent freezing of the LPG as it expands from liquid to a gas. All the T pieces and clips were supplied. The tank has a cross marked on it which is positioned at mid-height to correctly orientate the valves and floats.

1st Job is to try out the varous tank positions - an 85 litre unit will fit 'north-south' in a Range Rover

2. This 100 litre tank will have to go 'east-west' in this vehicle, and will hold approx 17.5 gallons og LPG

3. The tank sits on a special rack bolted to the floor

4. The edges of the rack are coveredwith a plastic strip

5. A 100 litre tank is held in place with 4 steel straps

6. The strap buckle is tightened and secured with a lock nut

7. The rack is bolted down using large 'penny' washers

8. Once installed the tank has a vent and filler to the right and electrical cables to the left

9. It is necessary to cut the vent hole through the floor - avoiding the exhaust

10. Unless you have a suitable hole saw, drill a series of smaller holes and file out

11. The fittings are secured with the self-tappers supplied. Apply Silicone sealant beforehand

12. the Tank comes fitted with an automatic 80percent shut off valve

13. the standard gauge can only be read on the tank itself. You can fit an additional gauge in the dashboard

14. A double grommet seals the LPG feed pipe and electrical cable

15. A simple flaring tool is used to create the correct flared end to atach to the LPG solenoid valve

16. The sadle clamp forces the conical end in to form the flare

17. The plastic covering over the copper pipe needs cutting back at the end

18. The pipe can now be threaded through and the nut tightened

19. Surplus Wires can be trimmed to length, Wiring Diagrams are colour coded

20. the tank fits neatly under the parcel shelf

21. An external filler valve is supplied, connected to the tank by a flexible pipe

22. A template is stuck to the outside on a rigid part of the body

23. When secured a brass adapter is used to connect the LPG filling nozzle

24.Various adaptors ar used for different filling stations.
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