Topic: MPG on LPG (Read 7456 times)

Range Rover Blues · « **Reply #30 on:** April 22, 2007, 15:51:50 »

Reducer, evaporator, regulator, all the same thing, it's the big diafrgm thingy that makes it all work.

Inside it has a rubber Diafragm that's exposed to the LPG, the rubber won't last forever.

Yoshi · « **Reply #31 on:** April 22, 2007, 15:54:53 »

ok, is that the big round thing? (hey up lads, getting technical here!!!!)

Range Rover Blues · « **Reply #32 on:** April 22, 2007, 15:59:30 »

Sorry yes, the big round thingy. IIRC yours is above the passenger's side wheel if that helps

Range Rover Blues · « **Reply #33 on:** April 22, 2007, 16:00:25 »

And it'sll be the thing that smells of gas I reckon, just follow your nose :lol:

Yoshi · « **Reply #34 on:** April 22, 2007, 16:03:43 »

If you look at page 1 of this thread there is a picture of me engine, bay, is it the thing that looks like a disc? lol

Range Rover Blues · « **Reply #35 on:** April 23, 2007, 00:25:29 »

it's that thing in front of your washer bottle.

Yoshi · « **Reply #36 on:** April 23, 2007, 00:42:09 »

so if that stinks of lpg then i should think about replacing it?

Range Rover Blues · « **Reply #37 on:** April 23, 2007, 00:56:51 »

Yes I think so, you could try an overhaul kit (new rubber) but how successful these are I don't know. Got to be the cheaper option though.

Yoshi · « **Reply #38 on:** April 23, 2007, 01:06:32 »

well at least the head gasket hasnt gone i dont think! the lack of water circulation in the engine when the rad blew seems to have caused the lpg system to stop working and thus stopping the engine from running, which stopped the engine from overheating!

still dont know if that top hose is sposed to be squeezable or not lol

Range Rover Blues · « **Reply #39 on:** April 23, 2007, 01:14:01 »

No, I read your other post and I think you may have a leak somewhere at the top end, not loosing water but you should be getting pressure, the pressure stops the coolant from boiling.

Yoshi · « **Reply #40 on:** April 23, 2007, 01:20:21 »

but its not leaking water anywhere and the temp isnt rising at all! when i squeeze it the engine is usually switched off and you can hear the air bubbling the water in the reservoir lol

Range Rover Blues · « **Reply #41 on:** April 23, 2007, 01:37:46 »

It should pressurise when it gets hot, have you got a thermostat in it?

Yoshi · « **Reply #42 on:** April 23, 2007, 11:22:33 »

i dont know, but i bought a new thermostat the other day so waiting for that to arrive :D

Yoshi · « **Reply #43 on:** April 23, 2007, 15:00:04 »

right, had a good sniff under the engine, for once couldnt smell it there, lifted the tailgate and i could smell it in the back where the tank is!

Range Rover Blues · « **Reply #44 on:** April 24, 2007, 00:24:41 »

Bingo :!:

Soapy water round all the pipe unions then.

Yoshi · « **Reply #45 on:** April 24, 2007, 01:46:38 »

will do that tomorrow, if it is one of the unions is it just a case of tightening it up or is it replacement, if its replacement is it easy to do?

Range Rover Blues · « **Reply #46 on:** April 25, 2007, 00:42:00 »

On mine they are olives so you will need a new olive and possibly the nut. They looked like compression fittings if you ever did any plumbing. And guess what. mine leaks now too

Yoshi · « **Reply #47 on:** April 25, 2007, 02:13:47 »

Its a sympathy leak! lol, and i think mine is underneath now cos i smelt the lpg before and stopped to check thoroughly and it was coming from underneath, so thinking it could be the pipes from the tank to the engine, which i spose isnt too bad a job to replace!

Range Rover Blues · « **Reply #48 on:** April 25, 2007, 02:33:04 »

Hang fire there, if your system is fitted properly then any leak from the valve/inlet of the tank should be arried out through the boot floor by the armoured sheathing around the copper feed pipes and wirng going to the valve block on the tank. So a leak at the tnak will be carried out to under the boot somewhere for safety, lpg is a heavy gas so it sinks too.

Take the cover off the valve bits and have a good sniff. Again with the soapy water.

Yoshi · « **Reply #49 on:** April 25, 2007, 13:17:07 »

OOOooooo ok, will do that then :D

So when you gonna organise a days laning for me to cross the borders for??? lol still got your handle here ready for its new home!

Range Rover Blues · « **Reply #50 on:** April 26, 2007, 01:22:55 »

When you car stops leaking explosive gas

Maybe later this summer when Tim (area rep) has finished his exams.

Yoshi · « **Reply #51 on:** April 26, 2007, 15:28:04 »

My car doesnt leak explosive gas, honest!!! lol Definately think its coming from the tank now, cos have traced the smell to the point near where the pipe exits the boot.

Range Rover Blues · « **Reply #52 on:** April 27, 2007, 01:02:32 »

My problem< i have a cold so I can't smaell much but it smaells inside the boot, sometimes in the cabin, outside, everywhere.

I'm wondering itf i disturbed a pipe somewhere when I was fitting the exhaust, I had to lift and lower the engine a few times.

Yoshi · « **Reply #53 on:** April 27, 2007, 13:11:30 »

sounds pretty much where mine was, i just sniffed the pipe where it exits the boot and it smelt strongest there

blackbob · « **Reply #54 on:** April 28, 2007, 21:09:46 »

Quote from: "BadgersRover"

My 3.9 is on LPG and i get about 75 miles to Ã‚Â£20, 39.9p a litre at me local morrisons.

I thought i should get a little better than that? Or am i wrong? Also sometimes when idling i can smell lpg, but have checked the tank and all that and its all secure and air tight and stuff, so could it be over fuelling?

i only get crap milage round town i get 80miles on Ã‚Â£20 lpg in town and i get 180 miles on a run on Ã‚Â£20 lpg dont think the auto is good around town and its very hilly in brighton so needs loads of right foot to get up them

Yoshi · « **Reply #55 on:** April 28, 2007, 23:47:16 »

I know how hilly brighton is, i was bought up in Hurstpierpoint and actually worked in the preston park tavern ;)

Going along the dyke is fun in a landy!

Range Rover Blues · « **Reply #56 on:** April 29, 2007, 13:33:24 »

If it makes you feel any better my LSE can do as little as 9 MPG and on a good day I've had 10.8 MPG recently, no airconn, no big right foot.

Yoshi · « **Reply #57 on:** April 29, 2007, 17:14:43 »

Well did the soapy test today and even though could still smell it it was coming from the exhaust and not from the tank :-s

vxuk · « **Reply #58 on:** April 30, 2007, 17:02:27 »

hi all, I have a P38 on LPG injection and from petrol i get 16.2 (or so the cars ECU says) and worked out that from gas i get about 12. I fitted the kit my self and it took me about a month to do, in that time the battery was disconnected so it lost all the fuel maps and needed to re-learn. when it first started back up i got 25mpg from it. about 2 days later it went to 16

i thought that the 25 was just a pipe dream but found out that my air flow meter is up the pan so have got a new one coming. It's been remapped and has a stage 3 block in it. so its all very possible to see 25 on petrol so should be getting about 21ish on LPG. In regards to low MPG i was getting about 16mpg before the ECU faulted and then found out that the gas pressure was far to high and now have it at about 1.10 bar (started at about 1.7bar) was just a matter of undoing the vacum pipe abit. I'm soon to fit a ring LPG system on my friends 3.9 RR so not sure what to expect from it.

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AuthorTopic: MPG on LPG (Read 7456 times)