Upper engine cleaner and lpg

Boza · 06-01-2015, 10:10 PM

I want to run some upper engine cleaner through my old mans fg mk2 ecolpi is this stuff ok with lpg or is it only for petrol engine.

Boza · 06-01-2015, 11:06 PM

If you saw the state of the throttle body you' self for yourself there has been bad gas going around melbourne there is a lot of black carbon on and oily residue all over the manifold and back side of throttle body and the car has a rough idle now cause of this so we want to clean as best we can.

**Silver Ghia** · 07-01-2015, 01:39 PM

Quote:

Originally Posted by Boza

If you saw the state of the throttle body you' self for yourself there has been bad gas going around melbourne there is a lot of black carbon on and oily residue all over the manifold and back side of throttle body and the car has a rough idle now cause of this so we want to clean as best we can.

I'd be looking at the engine oil used being the cause, coming into the tb via the crankcase ventilation system. Especially if mineral oil like Magnatec is being used for 10000 -15000 kms between oil changes.

Boza · 07-01-2015, 12:24 PM

Quote:

Originally Posted by tempted

Fair enough.

Which stations have been selling bad gas?

The local stations are mainly united and safeway(woolies) petrol for some reason the local bp and shell stations have been having gas shortages so maybe this has something to do with it.

ftssjk · 07-01-2015, 02:41 AM

Should be okay to run (but I'm no mechanic).

Are you gonna get the sea foam stuff or the subaru stuff?

Boza · 07-01-2015, 12:25 PM

Quote:

Originally Posted by ftssjk

Should be okay to run (but I'm no mechanic).

Are you gonna get the sea foam stuff or the subaru stuff?

I was gonna use the subaru stuff never heard of the sea foam

there's also stuff made by liqui-moly and CRC and others but haven't heard of any reports about them so will stick with the subaru stuff.

**ebxr8240** · 07-01-2015, 02:45 AM

Sea foam or some temp [or permanent] water/ meth injection..

Franco Cozzo · 07-01-2015, 01:23 PM

It should be fine, you're supposed to get the engine warm, spray 50% of the can through the vacuum line going into the inlet manifold, let it sit for about 5 minutes, then start the car which it'll cough and splutter and blow white smoke out the exhaust like the Beijing olympics on a carboned up car.

Then when it clears up with the car still idling spray the rest slowly down the intake manifold vacuum line but it might stall so it helps to have someone bringing up the revs.

Thats how I've done it anyway, or you can spray the first half of the can in the throttle body with the car off, which also works.

But being LPG it probably won't blow much smoke, but give it a crack anyway.

Nulon makes one of these products now too, I've used the Subaru and the Nulon stuff.

Boza · 07-01-2015, 01:51 PM

we use a full synthetic 5w-30 like the book says we use the penrite oil I have heard numerous reports from around melbourne about a particularly oily batch of gas going around something to do with refining process or something like that.

Also heard of a bloke with a nearly new diesel v8 cruiser that filled up at the local safeway where the old man fills up, he filled a full tank of diesel then went home parked the car went to start it the next day and the injector pump and injectors were all rooted from oily-watery diesel 14k of damage the servo coughed up after the fuel was tested.

Dunno if it's a coincidence or cost cutting on safeway's part but lately the fuel there is crap and I avoid them like the plague.

**aussiblue** · 07-01-2015, 03:32 PM

Just don't overuse it or you risk killing the catalytic convertor.

GASWAGON · 07-01-2015, 05:53 PM

You could get away with using some carby cleaner on your throttle body with the butterfly open and use an old toothbrush to scrub off residue instead of using combustion chamber cleaner.

A dedicated LPG engine like yours will have NO carbon at all on the pistons or combustion chamber.....Thats the beauty of LPG engines....They dont get carbon build up!

So really, chamber cleaner is not necassary or required and I doubt wether it will even clean your throttle body properly anyways.

Boza · 08-01-2015, 11:23 AM

Quote:

Originally Posted by XR6WGN-LPG

You could get away with using some carby cleaner on your throttle body with the butterfly open and use an old toothbrush to scrub off residue instead of using combustion chamber cleaner.

A dedicated LPG engine like yours will have NO carbon at all on the pistons or combustion chamber.....Thats the beauty of LPG engines....They dont get carbon build up!

So really, chamber cleaner is not necassary or required and I doubt wether it will even clean your throttle body properly anyways.

I have relo's in the taxi industry that have been running e-gas falcon's since they first appeared the gas these day's is horrible car's always suffer rough idle problem's from dirty throttle body's they also stall from bad gas I dunno what they put in to gas these days but if you saw the inside of a straight gas engine it's full of black carbon like crap.
We put an inspection camera into a e-gas engine that did 150k and it was horrible in there black stuf all over the back of the valves carbon looking deposits on the piston's.

I know alot of guy's that run straight gas on there clevo's and are all saying that they have had to pull timing out of there engines and can generally feel the difference in gas these day's and say they are having alot of problem's with oily gas.

Apparently since we started selling gas to the Chinese they get the good stuff to keep them happy and we leave the bottom of the barrel stuff for ourselves

Franco Cozzo · 08-01-2015, 11:32 AM

eGas Falcons seem to be very sensitive to fuel quality, mate has a BF eGas XR6 ute and you can really tell the difference between one fill to the next, even from the same servo.

Mind you he has been using Caltex servos so that wouldn't surprise me if they sell junk LPG.