Hi all. I have just signed up. Have a V8 Disco 2 petrol / lpg year 2000. The LPG unit is a Nicolson Maclaren... just installed a new V8 engine which is perfect. However its a bit lumpy on gas... I have discovered that a unit with vacuum pipes.. 1 goes to inlet manifold other to a control unit by the regulator
with a T-piece. Just above where the pipe comes out to go to the inlet manifold is another pipe outlet which omits a gas smell under pressure! Is this unit faulty or should there be another pipe on this or should it be blanked off? Its only a few mm from the vacuum pipe on the side of the unit. Another pipe comes round the body of the unit into the side of this pipe outlet. Hope anyone with the same model of Nicolson maclaren can have a look and advise me. Hope you understand what I am on about. Please, please help. Many thanks kayakski

 

You cannot have any leaks, not only will the engine run rough you run the rick of blowing up the truck.
If you just had the unit installed take it back and have them double check their work.

As far as I know the LPG should come from the regulator to the intake carb and then thats it, there should not be any other places for the piping to go.

 

Hi, This is a fuel injected one and has a series of pipes like this vacuum pipe going back to another control unit at the regulator. We fitted the engine ourselves! Planning on going to the LPG garage this week who fitted the unit in 2006. They have asked me to drop in with it anytime. Thanks for the reply.

 

Please let us know what you find out, we dont have any LPG conversions here in the US but we get plenty of people from other countries asking about them.

 

I haven't seen anybody do this on a rover but it's a pretty common mod on rock crawlers..you might want to try the pirate4x4 forum. BTW what kind of MPG numbers do you expect from the conversion?

 

Nite this is a VERY popular mod to Rovers in the UK, LPG is like $.38 per gallon compared to petrol which is almost $10 per gal.
Anytime you use LPG over petrol you will loose MPG but the cost difference is worth it.
And the nice thing about this mod, you can still use petrol, run out of LPG, flip a switch and the petrol fuel pump kicks in and away you go.

 

I remember seeing those kits online a while back. I forget how much they were..seems like they were expensive..but at those fuel savings the kit would pay for itself quickly.

 

A hell of alot quicker than a diesel conversion would.