Thread: Found Oil in LPG converter???

Yep.
Normal.
Happened to me.
Comes from the gas.

Hi, the sticky substance is what's known as heavy ends, when cold its like a tarry vegemite . A by-product of LPG
some convertors may have a drain grub screw, well in the early days did any way.
I re- kitted a B2 many years ago as the diaphram was totally stuck with the stuff.
Natural gas stoves also stain pots and pans, that's what that brown stain is that develops under them.

So it is normal, ok
So where else to look, after a Big front fire it won't idle in drive and and after hunting a bit it dies.
Can you guys tell me what I should start to check because it was running great before this.
Also the day before this happened I did the Bee Utey bosch ignition mod, which worked really well.
Cheers

Goop in gas converters is normal, most converters run for years like that. A kit through a converter and a clean up once every 100K is no mistake.

The poor idling is more likely to be a cause of a mixture change due to either air leaks, gas vapour hose perishing/cracking, or diaphragm stiffness/splitting/old age in the mixer head. There will be an idle mixture screw on the mixer, ususally with a spring on a slot head screw. This is where you start with idling problems on Impcos. Converters usually run OK or fail spectacularly, IE dump all their gas all at once when the regulator section fails.

That idle screw was the first thing I did and it made no noticeable differance, all the way in and out.
Cheers

When you say you had a big fire, do you mean a big Back Fire???
Does it run ok on Petrol?

Check for hoses that might have blown off
check the 2 hoses behind the plenum.
There is a thick hose that runs from the rear of the plenum and connects to the throttle intake. is not blown off
Also have a look at the drivers side rear where the IAC ( Stepper motor) is located, feel behind the rear of the engine there, there is a 1/4'' hose that connects to a plate see that each end is connected.
If these hoses are off and sucking air it will run like crap.
If the problem is also on petrol and it won't run correctly then maybe your maf sustained damage from a back fire

Hi
It was a bang out of the air filter, I know cause my head was under the bonnet at the time.
All hoses are on.
I haven't had a working MAF since I owned it, yes it don't run that good on fuel.
Could it be the TPS or IAC valve? How do I check them?
I have new plugs leads and dizzy cap put them in last week and it was running very smooth.
Cheers

Hi,

The black goo is residue, which is not a by product from the LPG but from the rubber hoses that are used from the tank upto the engine bay,

check google the W.A government has clamped down on the amount of rubber hose that can be used in aftermarket kits and gives a good explanation of the problem and solution.

when the residue comes from the LPG then there is a wide spread problem like there was about 2 years ago with Shell in Victoria.