Board logo

x flow breather excessive smoke
LoMoss - 25/3/10 at 09:21 PM

Have fitted twin 40s and now have an issue with the smoke/fumes from the breather.

Have removed the valve from the block breather as I have excessive smoke through the oil filler cap. Where should the block breather go now?

Could this be an indication that the engine is on the way out?

Thanks

Moss

jacko - 25/3/10 at 09:44 PM

quote:
Originally posted by LoMoss
Have fitted twin 40s and now have an issue with the smoke/fumes from the breather.

Have removed the valve from the block breather as I have excessive smoke through the oil filler cap. Where should the block breather go now?

Could this be an indication that the engine is on the way out?

Thanks

Moss

In a oil catch tank ?

austin man - 25/3/10 at 09:45 PM

did it go to the manifold originally ?? if so drill and tap the manifold and feed it back into the inlet tract or fit an oiu catch tank. Sound like you've got a bit of crankcase pressure, engine will probably have miled in it yet as they are a tough little unit. a bottom end rebuild should sort it out if it gets too bad. Keep your eye on the oil level and pressure

MakeEverything - 25/3/10 at 10:46 PM

quote:
Originally posted by jacko
quote:
Originally posted by LoMoss
Have fitted twin 40s and now have an issue with the smoke/fumes from the breather.

Have removed the valve from the block breather as I have excessive smoke through the oil filler cap. Where should the block breather go now?

Could this be an indication that the engine is on the way out?

Thanks

Moss

In a oil catch tank ?


I know where i can get you an ally oil catch tank for £25 posted?? Look at the Group Buy thread posted this evening.

LoMoss - 25/3/10 at 11:12 PM

quote:
Originally posted by MakeEverything


I know where i can get you an ally oil catch tank for £25 posted?? Look at the Group Buy thread posted this evening.


Well, if they can stop the reek in the engine bay I could be interested. Would a catch tank stop the smoke/fumes getting out?

Moss

UncleFista - 26/3/10 at 02:12 AM

We had exactly the same problem when we fitted bike carbs to our crossflow.
It's cured now, no heavy breathing or smoke and more power to boot. We fitted a Zetec but got enough cash for the worn out crossflow on eBay to pay for the conversion

[Edited on 26/3/10 by UncleFista]

02GF74 - 26/3/10 at 07:22 AM

is it smoke or steam?

easy way to tell is to put a piece of paper near then see if the paper is stained (oil) or remains white (water).

I have a fair bit of steam on mine that I initially though was oil.

The pipe should go to a catch tank, with a breather.

rusty nuts - 26/3/10 at 07:39 PM

My engine did that before I rebuilt it . I did find dropping the oil level almost to the minimum on the dipstick tended to reduce the fumes