MK1 Focus RS - Puff of white

[XJR500bhp]

Hiya People, any help on this matter is appreciated.

I have a Mk1 Focus RS on 60k newly acquired. Today for the very first time the exhaust let out some white (with a hint of blue) smoke on idle when sitting at a junction. It hasn't done it since.

It has had the chargecooler removed and an fmic fitted along with an oil catch tank. In the top of the catch tank there is some spunk, not much but there Is some.

I took the oil cap off the engine, no spunk at all and the dip stick showed none either. The header tank was clear and there was plenty of water.

Now I have been told it's a breathing issue and the bar breathed moisture into the catch tank, but why did it puff out all of a sudden?

Any help apprectaed guys

[neiljohnson]

Could be a few different things, what other mods does it have on the car?? An aftermarket breather is only really required with high hp applications

[XJR500bhp]

Has a different manifold and that's about it - dream science map also.

I'm a worrier and this has got me thinking now, luckily it only did it once. Like I said no white stuff in the oil cap, header tank or dip stick and it hasn't overheated

[neiljohnson]

XJR500bhp said:

Has a different manifold and that's about it - dream science map also.

I'm a worrier and this has got me thinking now, luckily it only did it once. Like I said no white stuff in the oil cap, header tank or dip stick and it hasn't overheated

Then the breather isn't required but won't do any harm
If it's only done it once I wouldn't worry these cars have ' character' & do have the occasional moment & also if the oil is the slightest bit over the max they smoke.

[neiljohnson]

You have pm