Ben

As some of you will be aware I have been undergoing a bit of a project fitting a new turbo and intercooler and generally giving the engine a bit of a tidy up. This has been going on since last November and you'll see details in the below link:

https://passionford.com/forum/viewto...834&highlight=

I got the car started a few weeks ago following the conclusion of the work. Originally I had replaced the turbo due to oil leaking from the dump valve and escaping via the oil filler cap. This problem is still persisting and it seems like my months of work and cash have all been in vain. You'll see from the pictures below the situation at the moment with regards to the loss of oil:






I'm taking the car over to SCC Saturday morning for the experts to have a look at it. Just wanted to know what the experts on here reckon. Worst case I'm aware I could be looking at piston rings / bores which would mean more money thrown at it. I don't think it's down to a blocked breather as these were all removed and cleaned recently.

Would really appreciate any advice as I'm running out of patience and contemplating breaking the damn car!

Stu @ M Developments

iTrader: (12)

Oil in the boost hoses is almost NEVER to do with the turbo mate

On the KE system its down to the positively pathetic way the system vents itself into the metering unit directly from the crankcase and cam cover!!

Joris_FRST

What can it be with a EFi system ?

as the turbo was replaced on my fiesta and there is still oil in the hoses.
Nothing vents back to the airfilter anymore either.
(bailey breather)

I do have a valve stem seal that's not properly closing... to do with a "minor" fault in the head.

Stu @ M Developments

iTrader: (12)

Did you empty the intercooler after removal of breather?

Ive emptied over a pint from there before

Ben

In my case I'm running MFI. When the turbo was uprated the breather system was upgraded using one of the Fusion Fabrication breathers. However, due to the cheap silicone hose I had, there is a kink in the hose that runs from the oil breather to the metering unit. Surely this couldn't cause all this oil build-up???

Also, I replaced the intercooler for a brand new one so there's no chance of any oil being caught up in there

Joris_FRST

you shouldn't run a hose from the oill breather to the metering unit, block it off at the side of the metering unit, then just put a little filter on the side of the breather system, if it spews some oil there a catch-tank would be a good idea.

RANJ

on my old rst one of the brater pipes vented of into atmosphere

CabrioTurbo

righttttt....
you need to block off the feed from the metering head.. if you do this then the nice oily fumes wont be able to re-circulate and will prob cure your problems

Ben

Can it really be as simple as that to fix?

Not doubting you at all, just don't understand how the system works and therefore wouldn't have thought of that myself. How come the standard system is routed through the metering head?

RANJ

i had feed blockd from metering head aswell

Ben

Mmmmm, Seems there's a pattern emerging here

essexrsturbo

well basically its down to this, the crankcase gases and pressure come out of the engine into your breather, but for decided to route one of the pipes on the breather to the metering head which is where your turbo sucks its air from! so your turbo will now be pushing all them oily fumes back into the engine which then settles in the pipes or goes into the engine itself.

hope this helps

Ben

Thanks mate - beginning to understand how it works a bit better

Would this also explain the oil escaping via the oil filler cap? And therefore by blocking the feed to the metering head it would rectify this? It was blowing the oil filler cap off until I started using one with a retaining grub-screw recently. Now the oil just seems to seep out and create a mess on the rocker cover.

essexrsturbo

the above statement is proberly down to crankcase pressure, wot boost you running? hopefully alot or its more likely piston rings

RANJ

if ur blowing oil cap of, you may have a block somewhere

Ben

Yeah, heard it could be piston rings as a worst case scenario. I'm running 14psi boost, the car has been superchipped with a stage 2 turbo.

Engine is standard and only covered just over 80,000 miles with full history. What pipes should I check for a block? I've had most of them off to clean em up when I changed the cooler and turbo

CozzyBrom

engine fooked by sounds of it
blowing cap off and all that oil
failing that you havent used silcon or bling hoses on the breather pipe that goes on the lef thand side of plenum have you
that black plastic bit has a one way valve in it and if been replaced when you come on boost it basiclt presureises the crank case and will intime fuk the turbo and cause oil to piss out everywhere
hope this helps

Ben

Hi Brom

Yes- the whole of the original breather system has been replaced. Should I have kept the small filter in place then?

CozzyBrom

no as long as you havent got the pipe from the plenum going into the breather directly

The Sludge

cheers stu, that answers a very good niggly thing on my mind