 Plumbing Question #2 |
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| Porsche Rescue |
 Apr 29 2003, 08:35 AM
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Saving and Enjoying Old Porsches  Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None  |
Now that I have a handle on Weber fuel plumbing, I am moving on to oil vapor hoses. The engine I am installing is my first with carbs. Can someone tell me what the two small open pipes beside the intake manifolds are for? I assume they are on stock FI engine and I just never noticed them.
I believe I need some sort of vapor cannister (have seen one made by K&N). Do I connect it to the plastic nipple at the oil filler and then to the two nipples at the manifolds? Is this a crankcase vent system? Is there a PCV valve needed? By now you can tell that I'm not real sure I know what I'm doing! |
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| Mike D. |
Apr 29 2003, 12:34 PM
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OK, It runs now, and pretty good too! Group: Members Posts: 1,455 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None 
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I thought the whole Idea was (in FI world anyway) that the crank case breather to plenium hose is a vacuum that draws clean fresh air into the heads via the two head port hoses into one, and that one into the air cleaner. IE: drawing cooler air over valve train, maybe assisting in running oil back down pushrod tubes, and/or just keep a good flow of air moving through the crank case. DON'T ASK IF IT WORKS, I don't know.
I've seen people with carbs put a T on the crank case breather and run it to the carbs. Not sure if that does anything either. -Mike D. |
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Posts in this topic
Porsche Rescue Plumbing Question #2 Apr 29 2003, 08:35 AM
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