Hi,

Anyone here know about PLG, gas conversions, a friend has a problem
with a range rover 1993 L reg, 4.2 v8, classic,

Its started misfiring underload conditions and blowing the inlet truncking
off, we went to a friends m o t station to check the co% on plg,
and he said it should be approx 0.5%? seems like this may be wrong,

as on the way home my friend said its worse, no power foot to the floor,
so turned the co% up by a valve that is connected to a pipe that goes to the inlet manifold,

any ideas what it maybe causing the fault, would be appreciated as we don't want to play about with it as it is plg,
a little knowledge can be dangerous,
Regards Dave R.

 

Some might know about LPG!!
It is MASSIVELY overfuelling on LPG, Co should be nowhere near .5%, that is massively too high.
It needs looking at, most likely something simple like a TOP HAT(about Ł3) seal depending on which system you have.
Any decent LPG place can sort it, so get booked in soon as.
If they blow back hard enough they can blow engine components apart.
Does it have a spark advance on it ?, if so this can also do it if gone haywire, so I would also check the ignition timing as a starter.
tabetha

 

Hi, Tabetha,

so you think 0.5% is to high? for PLG, or did you read it as 5%,

Thanks for the reply,
Regards Dave R.