I thought about getting a catch can but really, i shouldn't have too. 99% of the Falcons are running around with the setup that i have. The normal one and they dont have the problem i do. They came from the factory like that so they shouldn't cause problems.

So i want to find out why its doing it.

why its doing it ? its wear on the rings 99% sure because if they did the valve stems properly well then its the rings is the engine still under warranty ? maybe if so try get a compression test to back a "claim" with this wreckers and chuck up a storm

But the thing is, this is the second engine the i doing it. The last Au engine was doing the same thing and we all assumed the worst so replaced the engine and put a similar low km enigne in. But its doing the same thing /:

So it beats me. Surely both wouldn't be screwed. I mean, its only done low km's.

Alot of people are going to crack the s**t right now at me but so be it , my step dad has owned a EA and has clocked it to 900K km , and he told me he did motor swaps in it and every 300K km a new motor was needed he had an AU motor in it in the end till it started pissing out oil etc

now this guy knows his s**t he said by the time the motors were at about 200k you could just tell they were on there way out hell he even owns a model T in factory show room condition

these wreckers are evil selling us junk , maybe they are higher km then stated try ring ford with the engine number and see what there "history" is

Can you actually do that? where is the engine number? they will have history of it?

I should just go buy a BF XR6 Turbo
I want one soon though haha.

I thought AU's were a really good engine! maybe i got a second bad engine /: But the engine came out of a car that was driving and everything. It litterally just came into the wreckers out of an Au with Major hail damage. So it was driving and hadn't been sitting around or anything.

its real strange but ive had the same happen put a AU engine in my EF and it just seemed gutless i reckon it was ex taxi

a guy i used to know did it with his engine im not sure where the number is i think in some hard to reach /read place but he found out the engine he bought only had 140K on it but it really had 250K and he managed to get anther one for free from the wrecker due to it

ford dont keep any history of km traveled, maybe only the warranty period..

au engines are one of the best 4.0l made, esentually the same bottom end as ba, crank,rods and pistons..

its hard to trust or beleive what km a wrecker says unless you see the car it came out of..
again it may only have 200,000km but if it had not been looked after previously the km mean s**t...

Ok, so i just spoke to the guy who did my engine conversion in Melbourne (Racetech Performace) and he has spoken to a few people and the reason why its doing it is because of the gas. He said the gas changes the vacuum or something along those lines and the way the PCV valve is plumbed in now is different to what is should be and there is excessive vacuum going to the PCV which is causing it suck the oil.

We need to either re-plumb it, or take the gas off which is what i wanted to do or for a tempoary measure, make something that can fit into the line that can act as a 'restriction' or some sort of venturi.

He said removing the gas would make it stop having the issue. So not sure what your guys thoughts are?

If the rings are F**ked then it would be blowing smoke regardless of whether the PCV hose was connected or not. And the fact both engines did it with the same cam and gas setup and vacuum plumbing just doesn't make sense. Apparently he said the wreckers (which are actually a ford dearlership as well) drove the car around for a bit, did compression tests ect and the rings and everything were found to be good and there were no reported issues of oil consumption from them or from the guy who previously owned the car.

Could just run it without the vacuum house to the manifold fullstop but its there for legal reasons, so to save the environment. So i do want to get it setup properly.

its lpg???? so where is your pcv connected, is it to manifold under throttle body or on an adaptor between isc and throttle body??

just a note, pistons have 2 lots of rings, compression rings and oil rings, the compression rings can wear before the oil rings and vica versa..
so an engine can still have alot of blow by through the compression rings but the oil rings still do there job hence no smoke without pcv..

to be honest, the cheapest and simplest way to stop the issue temperarily is block off the hose and not run the pcv...not really legal nor emission compliant.. otherwise the car should still run fine without it...

That is true Troyman they are one of the best 4.0l's made for a pretty much direct swap into all E series falcons

hmm what are your thoughts though troyman i reckon there telling porkie pies to try cover them selfs

Ya screw it do it for "temp fix" the blocking of that hose , maybe just do a compression test just to see if its all even etc and just to know deep down its all "ok"

how many PSI in each cylinder should these engines have T-man ?

It's hooked from the pcv to the the inlet manifold under the TB. Is that right?
So I'll just keep it disconnected for the mean time but I want to get it fixed properly.

Could it actually be what he said? The gas is doing something?

au is usually between 170-200 psi each cyl




most lpg set ups i have seen usually have a spacer between the isc ant throttle body for the pcv, im not 100% on the reason of it being there...

So maybe it is plumbed wrong

I had a new ef bottom end built with a au head, I ran the log manifold and hooked everything back to normal and mine sucked through so much oil that it glazed the bores before it was run in. I've opted for the catch can because I don't want it to happen again. It's a pain in the a** because I spent so much money on it. I was told by a engine builder to get rid of the PCV due to that fact.