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[martin341]

Hi,

How essential is the rubber flap in the box and what's the purpose of it in the first place? Problem is the bloody dingi broke off as I was cleaning the box And if it is a absolutely needed thing is it available somewhere, stealers? Part number?

Martin

[martin341]

So been diggin around and found this:

Yeah secondary breather box mate, the little niple u on about were the pipe that goes to the tb that one u mean the plastic bit in side dont wurry about it fella u have just done ur self a faver cos its a pain in the arse lol cos the hole always blocks up I drilled mine out so its free flowing and never had any problems plenums are all ways cleane as well and no crap in tb no more , mite be worth tryin in mate 5 5.5mm drill bit and drill though the hole as well so it breaths

Any comments

[Andy H]

I couldn't see that the flap could serve any useful purpose

On my last car the breather box was so full of crap that I gave up trying to clean it and bought a new one. I cut he old one open and it is just a box with a baffle across the middle. I think the flap was just a part of the gasket - it might have worked as a one way valve for the first 1000 miles but it won't do anything once it goes hard.

[jimbo125]

Mine had stiffened - the flap that is - and gunged up so just pulled it out of the breather box. should breath better now