Mud-club

Vehicle & Technical => Range Rover => Topic started by: Jonny Boaterboy on January 28, 2006, 20:18:07

Title: Runing out of Petrol!
Post by: Jonny Boaterboy on January 28, 2006, 20:18:07

It tells me in the hand book under no circumstances let my 1994 V8 3,9 engine run out of fuel...... Why? If I run out of fuel can I not just put in my spear 5 litres of fuel and turn the key and wait untill some fuel reaches the engine and fires and drive off?

Thanks Jonny (with a full tank!)

Title: Runing out of Petrol!
Post by: Xtremeteam on January 28, 2006, 20:27:06

it has something to do with the cats i think,run the V890 dry about 3 times in the last fortnight & never had any probs,

Title: Runing out of Petrol!
Post by: James.Harwood on January 28, 2006, 20:51:34

This is a mistake in the hand book, it should read 'Always plan your route by known petrol stations at regular intervals'

Title: Runing out of Petrol!
Post by: H on January 28, 2006, 21:35:34

mines run dry of both fuels before now, because of the angle I was parked it took the whole 5 litres in my spare can just to get enough pressure to get some up to the engine. but shes shown no side effects but then again I dont have a cat. 92 3.9 efi

Title: Runing out of Petrol!
Post by: landyman Ash on January 28, 2006, 23:58:17

Quote from: "RedlineMike"

it has something to do with the cats i think,run the V890 dry about 3 times in the last fortnight & never had any probs,

Typical scotsman, cant put a full tank in  :wink:  :wink:  :wink:

Only joking bud, I ran my 89 (admit, not the same) dry LOADS of times, never had a prob.  Always started eventunally!

Title: Runing out of Petrol!
Post by: Range Rover Blues on January 29, 2006, 20:22:38

It can damage the fuel pump.  TBH though a lot of what's in the manual is just the manufacturer covering their a**e.

Title: Runing out of Petrol!
Post by: Xtremeteam on January 29, 2006, 23:43:20

Quote from: "landyman Ash"

Quote from: "RedlineMike"

it has something to do with the cats i think,run the V890 dry about 3 times in the last fortnight & never had any probs,

Typical scotsman, cant put a full tank in  :wink:  :wink:  :wink:

Only joking bud, I ran my 89 (admit, not the same) dry LOADS of times, never had a prob.  Always started eventunally!

thing is that was from a full tank,120 miles up the road n it would pull up wi the pump making a racket,hmmm i kno that sound its run out

Title: thanks
Post by: Jonny Boaterboy on February 01, 2006, 21:26:57

Righty that seems to have clear out my worrys!, never ran out of fuel yet but you know how thirsty the V8 is not sure how far to pust it!

Thanks everyone

Title: Runing out of Petrol!
Post by: Garth on February 22, 2006, 22:58:49

The fuel pump runs continuously when ignition is on and as it is a submerged type is cooled by the petrol in the tank.  So if you have ignition on and no fuel in tank the pump overheats.  Thats why if you have LPG you allways need petrol in the tank (or dissconnect the fuel pump.

Title: Runing out of Petrol!
Post by: Jonny Boaterboy on February 23, 2006, 22:15:28

Thanks garth will bear that in mind if I ever do run out

Jonny

Title: Runing out of Petrol!
Post by: Sooty on February 23, 2006, 23:44:27

Not sure if this has anything to do with it but on my discovery 3.5 V8 1990 the fuel pump is supplied through a relay that is grounded by the oil pressure sensor, therefore if the oil pressure drops then the engine stops.
This maybe in case the oil light is duff or someone is daft enough to continue to drive when the light comes on.

Title: Runing out of Petrol!
Post by: Garth on March 14, 2006, 00:32:19

Addition to previous info the petrol also acts as a lubricant so if the pump is run dry it can seize up.
Either way its not good