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Thread: Plugging the breather to the airbox?

  
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    Plugging the breather to the airbox?

    I'm doing the 2.2 airbox mod, and heard something that you should not plug the breather to the airbox because the fumes can damage the AMM. Can someone say if this is true or not? I've tried looking for a pipe (from the AMM to the turbo) that would have a T-connection so I could could plug it there, but at least Samco doesn't have a model that I could use. The other option is to just vent the fumes out via small cone filter.
    Sapphire black coupé turbo

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    Venting the fumes to atmosphere is a MOT failure, so would need sorting out properly coem that time anyway, unless you hid the filter well. The breather needs to be connected to the inlet system, its all to do with crankcase pressure or something When i did mine i took it from the rocker cover to a oil catch tank, to stop any oil getting back into the system, then back into the airbox. Most people tend to fit the return pipe after the AFM but i've fitted mine before, not had any drama's with it yet and have been running this system for some time.

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    i use a small cone filter. no problems, no oil or anything coming out of it.
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    Good to hear Matt. Could you post/are there any pics of your oil catch tank install?
    Sapphire black coupé turbo

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    From what I read your best off not venting to atmosphere as the vacuum effect from the air box actually helps draw the fumes from the engine. I'd try and custom fit it after the MAF....
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    This pic shows it. The clear pipe comes from the rocker cover to the catch tank on the rear right of the bulkhead, then from their back into the airbox.


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    I thought the catch tank had to be lower than the source for it to be effective ??

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    New to me, did ponder this but im getting oil and condesation in it so its working, none on the outlet side too.

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    Quote Originally Posted by theblueraven View Post
    i use a small cone filter. no problems, no oil or anything coming out of it.

    Likewise, I've done away with my xover pipe and just have a filter, and nowt dribbles out of it.But as stated if its spotted at MOT time it could mean a failiure so I will either slap the old black pipe back on for MOT or sort out a catch tank and connect it to the turbo inlet elbow.

    My only concern is that running the pipe back to the turbo from the original breather outlet or new catch tank position would involve a fair run of hose/pipe and this could cause any vapour left to condense in the pipe and take you back to square 1, gungy oily gloop going thru the turbo again

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    Thats why i kept my catch tank as close as i could to the breather pipe. The catch tank will as it says catch any vapour so none gets throught to the turbo. As stated as well its part of the pressure system and i think the air needs to be drawn out of their so goes against just venting to air.

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