LPG Leaks.. HELP!
The Admiral
I had my car converted some four months ago. Ever since then, I can always
smell gas when running on LPG. I can smell it when stationary and it gets
drawn into the passanger compartment when the heater fan is on, or when I
lift the bonnet. The smell is stronger when it's a damp day (or night!) and
only when the LPG switch is on. Now, I've taken it back to them and they say
that they can't detect any leaks using the soapy leak detector spray. I can
though, with my nose. I guess that they've been working with the stuff and
have almost become immune to the smell? I'd like to check it myself. I have
the gas-leak spray from my gas work at home (when I installed a boiler). The
question is, where should I be looking? There is a pipe that comes from the
tank into the engine bay, which is coupled to a solenoid valve. I can check
there, and the output from the valve. It then goes into the vapouriser (in
and out), so I can check there. Following there it goes to the stepper (in
and out), then gets split into two hoses which then feed the mixer (the bit
that pulls fuel into the airstream). One would have thought that there would
be a negative pressure differential at that point, so it wouldn't leak from
there?
Any other suggestions?
Thanks all!
The Admiral.
Austin Shackles
<Admiral...@yahoo.com> enlightened us thusly:
I'v been having a similar problem with the land rover - in fact, it's been
making gas smells ever since it was converted, though in my case only when
under heavy load. They get in through the heater on mine, if I shut the
heater off completely (vent as well as fan) it doesn't smell.
I think I've just tracked down why, though it may not be entirely fixed yet.
I took the back off the vapouriser, where the diaphragm is (OMVL in my case)
- the diaphragm has a sealing ring (like an O-ring) made into the outside
edge, and on this was a small piece of aluminium swarf, undoubtedly there
since assembly. I conjecture that this was causing a very slight leak from
around the edge of the diaphragm, not enough to cause any noticeable running
problem.
This may or may not help you.
Andrew Wheeldon
"The Admiral" <Admiral...@yahoo.com> wrote in message
news:9sor2h$152kn1$1...@ID-36948.news.dfncis.de...
uncommon. The gas it's self does not smell, there is a chemical added in
order for you to be able to detect it by smell, a perfume if you like. This
perfume doesn't burn very well and is often detectable in the exhaust
gasses, particularly if the engine is running a little rich ( some engines
run better a little rich at idle). When the vehicle is stationary in traffic
it is not uncommon for exhaust gasses to be wafted under the car and they
can in turn be drawn up into the vents for the heater etc and you can smell
gas. It may therefore be nothing to worry about, If you can smell gas when
you are driving along that's quite a different matter. Of course you are
quite right to get it checked out when you can smell it!
Andy
Neil Turner
My Nissan Almera was converted a month ago and has been returned 8 times
with leaks and set up problems. The leak was eventually tracked down to a
faulty vapouriser (leonardo type).
Suggest you keep hastling the installers. I am still hastling mine as, due
to the setup problems my car backfired and cracked the air filter casing.
Hopefully tomorrow morning they will replace this at their cost. If they
don't they will be reported to trading standards
Neil Turner
"The Admiral" <Admiral...@yahoo.com> wrote in message
news:9sor2h$152kn1$1...@ID-36948.news.dfncis.de...
Andrew Wheeldon
"Neil Turner" <4d...@bigfoot.com> wrote in message
news:XCeJ7.4766$hU6.4...@news11-gui.server.ntli.net...
> Hi,
>
> My Nissan Almera was converted a month ago and has been returned 8 times
> with leaks and set up problems. The leak was eventually tracked down to a
> faulty vapouriser (leonardo type).
>
> Suggest you keep hastling the installers. I am still hastling mine as,
due
> to the setup problems my car backfired and cracked the air filter casing.
> Hopefully tomorrow morning they will replace this at their cost. If they
> don't they will be reported to trading standards
>
> Neil Turner
>
>
Andy
darren bates
just smells and thats it. If you can smell gas, there is a leak on it. I
took my car back 3 times within the first week and eventualy found out there
was a tiny leak from the hose on the engine. They tried fobbing me off at
first, saying it smells different to petrol and i just have to get used to
it, but i had to insist, as it was choking me when standing still and
idling. Tell them if they are not going to do the job properly, take the
whole thing off and give you a refund.....D.Bates.
>
>