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Main : Mechanical : Engine A15 Crankcase breather

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A15 Crankcase breather
A15 Crankcase breatherPopular
SubmitterTomMcKayMore Photos from TomMcKay   Last Update2008/1/12 22:48    Tell a friendTell a friend
Hits2023  Comments6    0.00 (0 votes)0.00 (0 votes)
What to do?

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The comments are owned by the poster. We aren't responsible for their content.

Poster Thread
tens_and_twenties
Posted: 2008/1/14 2:12  Updated: 2008/1/14 2:12
No life (a.k.a. DattoMaster)
Joined: 2001/10/15
From: Arlington, TX, USA
Posts: 1305
 Re: A15 Crankcase breather
If you are asking what is supposed to be done, it's supposed to go into a PCV valve, which is screwed into the intake runner (or balance tube).

Poster Thread
datrat_dave
Posted: 2008/1/14 6:12  Updated: 2008/1/14 6:12
Home away from home
Joined: 2004/8/10
From: Melbourne
Posts: 775
 Re: A15 Crankcase breather
Can either: fit a small breather as found on the rocker cover style, vent to ground by pipe (dodgy) or fabricate a balance tube to be fixed to the inlet manifold or any other option along the same lines!

I went with option 1 and worked fine if your engine doesnt have much blowby..
Dave

Poster Thread
ddgonzal
Posted: 2008/1/14 6:37  Updated: 2008/1/14 6:37
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31657
 Re: A15 Crankcase breather
Quote:
vent to ground by pipe (dodgy)
Actually, that's the factory way for early engines. Not dodgy at all...

Discussion here: Main Forum: A15 crankcase breather

Poster Thread
Dodgeman
Posted: 2008/1/16 8:37  Updated: 2008/1/16 8:37
No life (a.k.a. DattoMaster)
Joined: 2003/6/27
From: Southern Tablelands N.S.W. Australia
Posts: 8287
 Re: A15 Crankcase breather
Is this a dedicated competition engine, or a street engine?
If it's for racing, then you can utilise a catch can as per the regulations for your class, but if for street use, it should be connected to a PCV valve.

Venting it to the road is illegal in Australia as it leaves oil on the road surface which motorcyclists love whenever the road surface is damp.
Use this method & pop around to the local chapter of an outlaw club & have a laugh about it with them.

Poster Thread
frankthedolphintrainer
Posted: 2008/1/16 8:46  Updated: 2008/1/16 8:46
No life (a.k.a. DattoMaster)
Joined: 2006/6/8
From: Brisvegas, oz
Posts: 2173
 Re: A15 Crankcase breather
what about the earlier a10 engines, the one i have has the pipe that drops straight to ground that couldnt be illegal. what if i removed it from the a10 and put it on the a12...it would atleast look original