LPG conversion in Deisel??

BuzzLand

Active Member

Posts

886

• Apr 29, 2012

• #1

Thought this was only possible in petrol engines...

But according to this advert 300 TD engines can be as well!

1986 Land Rover Defender 90 300 TDI GAS CONVERTED

Is this a windup or has there been further developments in LPG technology??

 

Last edited: Apr 29, 2012

Lowlight

Active Member

Posts

487

Location

North Wales

• Apr 29, 2012

• #2

The engine could be running gas over Diesel?
For a start you would need a spark plug to ignite the LPG if there was no diesel being burnt so a conversion would be so expensive it would be cheaper to stick a V8 in there!

 

BuzzLand

Active Member

Posts

886

• Apr 29, 2012

• #3

I was wondering if they'd replaced the original 300 with a V8 then done the conversion to LPG.
But the advert seems to suggest otherwise...

 

Matt TDi

New Member

Posts

707

Location

Leicestershire

• Apr 29, 2012

• #4

You can use LPG on diesel engines. But whereas on petrol the LPG injection replaces the petrol fuel, in a diesel it is injected as a mix with the diesel fuel.

It's not the most reliable form of combustion at this point in time though.

 

hawky666

Well-Known Member

Posts

1,662

Location

Calllington, Cornwall

• Apr 29, 2012

• #5

Just incase your interested.
She wants £4600 fr it and has that set as reserve on ebay. I was going to take a look but quite honestly its a hell of a lot for a C reg when the technology isn't full proof as stated.
Have heard that from a couple of companies that do the conversions and as this was done a little while ago it would probably be less reliable.
Also a very small lpg tank from the sound so would be back to station a fair bit.
Nice woman though.

 

Matt TDi

New Member

Posts

707

Location

Leicestershire

• Apr 29, 2012

• #6

Well, in all fairness you don't need a huge LPG tank, because the mix is only about 25% of the total fuel injected into the cylinders.

Compared to an LPG petrol, where more LPG is used than petrol would be, due to the lower octane of LPG, you would probably have quite a bit more range out of gas.

 

hawky666

Well-Known Member

Posts

1,662

Location

Calllington, Cornwall

• Apr 29, 2012

• #7

no body has told me that, good to know. thanks.

 

Matt TDi

New Member

Posts

707

Location

Leicestershire

• Apr 29, 2012

• #8

Infact, the maths in theory would mean for a 90ltr diesel tank, you would only need a 22.5ltr LPG tank to match the range you would get from a full tank of diesel.

But as I said, LPG and Diesel isn't an exact science. There's lots of fine tuning to it, and the benefits aren't always worth it. If set up wrong it can cause serious damage to an engine too.

 

hawky666

Well-Known Member

Posts

1,662

Location

Calllington, Cornwall

• Apr 29, 2012

• #9

funny enought this woman has told me she doesn't hardly use the lpg. maybe there's a reason why!! but she seems to think its worth someone paying the extra 1k+ to get it.