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Old 02-13-2011, 03:24 PM
HPIA4v2 HPIA4v2 is offline
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Location: washington
 
Join Date: Mar 2006
Posts: 2,106
Mein Auto: E60, E71, E92
Quote:
Originally Posted by Raimo View Post
Use a simple spring operated pressure relief valve that vents the crank case pressure to the atmosphere. It's a valve for 1/4" pipes and it's adj. for 0-8bar. The 1/4" size is not suitable for the ccv hoses, so i got a adapter and T-piece for bigger size (it was 1/2 if i remember correctly) and the it's nearly perfect. I adjusted it so I could push it open with my own breath.
Though the valve is small, I haven't had a problem with sludge/oil/water blocking the valve. It makes a funny buzzy sound so if the radio isn't too loud, you can hear it working and then i'll just ease off with the throttle.
You'll probably find in a store that sells pneumatic tools and accessories. If you search more, you probably could find a valve with a better smaller adj. range but there aren't many shops selling these in my area.

Here a picture of the valve itself:
I like that, thinking outside the box. But I'd use the one that kinda hard to open for just in case situation.
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