 914-6 Oil and engine breather lines with afrmtermarket air cleaners, How did you hook up the breather lines |
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| bdstone914 |
 Aug 13 2025, 07:40 AM
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bdstone914  Group: Members Posts: 5,079 Joined: 8-November 03 From: Riverside CA Member No.: 1,319  |
The 914-6 we got is missing the air cleaner.
I have after market Individual air cleaners. Anyone have pictures of how they hooked up the breather lines to non stock air cleaners? Also looking for an original carb type air cleaner. |
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| mb911 |
Aug 13 2025, 09:38 AM
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914 Guru Group: Members Posts: 7,620 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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QUOTE(bdstone914 @ Aug 13 2025, 05:40 AM)  The 914-6 we got is missing the air cleaner. I have after market Individual air cleaners. Anyone have pictures of how they hooked up the breather lines to non stock air cleaners? Also looking for an original carb type air cleaner. I would suggest not. The engine breather should connect right to the oil tank and the vent on the filler neck should vent to a puke tank in my opinion |
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| ClayPerrine |
Aug 13 2025, 12:16 PM
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Life's been good to me so far..... Group: Admin Posts: 16,504 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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When you buy a set of K&N watershield air cleaners for a 911/914-6, you get a plastic breather fitting that is used to hook the tank vent to the air cleaners. It should be mounted high up above the oil tank level. The big line connects to the filler neck, and the two small lines go to the air cleaner.
You can see the breather fitting in the picture below. It is at the left side. (IMG:http://www.914world.com/bbs2/uploads_offsite/www.racetep.com-1143-1755108961.1.jpg) There are also 90 degree fittings that go into the holes in the watershield air cleaners to hook to the breather fitting. That way everything is routed to the air cleaners so it can be pulled in for some semblance of emissions management. I don't like the way they don't terminate inside the filter housing. Dirt and crap can get in the hoses the way they are run. Lots of people just put a small K&N filter element on the filler neck vent. But it can result in oil on the engine during hard driving. You could buy an aftermarket puke tank and use it. |
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| mb911 |
Aug 13 2025, 04:22 PM
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#4
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914 Guru Group: Members Posts: 7,620 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest
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QUOTE(ClayPerrine @ Aug 13 2025, 10:16 AM) When you buy a set of K&N watershield air cleaners for a 911/914-6, you get a plastic breather fitting that is used to hook the tank vent to the air cleaners. It should be mounted high up above the oil tank level. The big line connects to the filler neck, and the two small lines go to the air cleaner. You can see the breather fitting in the picture below. It is at the left side. (IMG:http://www.914world.com/bbs2/uploads_offsite/www.racetep.com-1143-1755108961.1.jpg) There are also 90 degree fittings that go into the holes in the watershield air cleaners to hook to the breather fitting. That way everything is routed to the air cleaners so it can be pulled in for some semblance of emissions management. I don't like the way they don't terminate inside the filter housing. Dirt and crap can get in the hoses the way they are run. Lots of people just put a small K&N filter element on the filler neck vent. But it can result in oil on the engine during hard driving. You could buy an aftermarket puke tank and use it. My only issue with that setup is do we really want any oil puking down the carbs to be burned? |
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| NARP74 |
Aug 13 2025, 04:44 PM
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Senior Member Group: Members Posts: 1,399 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
I have always disliked the hoses in the air intake, seems wrong.
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| rgalla9146 |
Aug 13 2025, 07:39 PM
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#6
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Advanced Member Group: Members Posts: 4,793 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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Exposing the area around the air filters to crankcase vapors creates a mess.
Porsche race cars used a plastic container to catch and condense the vapors. The picture shows my version. The neck of the bottle is a push fit into the factory vent hose. The bottle is slit along the top surface to allow venting. No holes or modification necessary. The bottle should be removed and cleaned regularily Simple remedy untill you find OE Attached image(s) 
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