Brought GT-4 with a dodgy intake setup. Was unable to source the factory setup so have cleaned it up a bit... intake pipe, breather filters etc.

Part of this new improved intake involved using an oil breather filter, initally this was ok but later on it started to spit a bit of oil out and now if I fang it then its a whole lot of oil. Bodgied up a home made catch can to get an idea of how much its using and on a long trip is around 50-100mls.

Add to this some sort of wierd vapour mainly around low revs (1500 to 2500) - not sure if its water vapour or something else (maybe burning oil somewhere??).

I guess a catch can will fix the messy part and stop oil spillage messing up the engine bay but is this much oil normal? and whats with the vapour - terminal??

Any help or ideas would be greatly appreciated...

if there's a lot of oil then maybe you're cylinders are losing compression. if that's true, the 'leaked' gases from your cylinders are putting out a higher pressure than normal beneath the valve cover and it's coming out from the oil breather filter you have. where is the breather filter installed? on the pcv valve?

it makes sense... when you fang it (i assume that means when you rev it high), the turbo spools increasing the pressure of the gas blow by which means more air flow through the breather filter and it's taking some of the oil gases along with it.

^ what he said

excess blowby = blown piston ringlands

you motor is toast, take it out and begin a nice build

>


Poos.

Will sort out a compression test this weekend - will keep you posted as to what the verdict is...