Crankcase breather - What to do?

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6N2GTI
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Crankcase breather - What to do?

Post by 6N2GTI » Tue Nov 28, 2017 2:48 pm

Cheers guys.

So the story of the well-known crankcase breather and what to do with it.
I'm still doubting what to do with it on my GTI.

When I swapped the org. air box for a K&N Typhoon about a year ago, I found the airbox & filter had the sort of oil mist over it.
Also, my TB is still quite "misted" in oil. I'm planning to clean it soon but I also want to avoid future greasing.
As far as I know there is luckily no mayo present.

What are the best options to do with it?
Perhaps a stupid question but why can't you just cut the hose and lead it under the car?
I want to avoid greasing my TB / K&N / Inlet as far as possible.

Cheers guys, Marvin

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Re: Crankcase breather - What to do?

Post by alexperkins » Wed Nov 29, 2017 9:58 pm

You can pipe the crankcase breather down and out the way. Down to the fog area works with a breather filter on the end

Alternatively fit a catch can to the crankcase breather hose to prevent it making everything oily

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Re: Crankcase breather - What to do?

Post by 6n2stan » Thu Nov 30, 2017 8:10 pm

I've done as Alex says and ran a length of pipe off of the breather and down behind the fog light, it's been like this for about 5 years :D

Word of caution though it'll come fairly close to the alternator belt so make sure it's secured well and clears the belt :wink:

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Re: Crankcase breather - What to do?

Post by 6N2GTI » Mon Dec 04, 2017 3:34 pm

Cheers guys for both your replies!

@6n2stan, did you use the filter on the end of the hose? Doesn't it get oily somewhere?

Many thanks mate. Cheers from rainy holland.

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Re: Crankcase breather - What to do?

Post by 6n2stan » Mon Dec 04, 2017 7:31 pm

I dont use a filter but it is recommended. I don’t get any oil mess as it’s so far from the original breather.

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Re: Crankcase breather - What to do?

Post by 6N2GTI » Mon Dec 04, 2017 10:56 pm

Well noted Stan and with many thanks.. Will have look to fabricate such myself as well.. Assume you have you capped the original connection / inlet?

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Re: Crankcase breather - What to do?

Post by 6n2stan » Tue Dec 05, 2017 4:29 pm

Yes I did blank off the airbox inlet. :D

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