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03-30-2009, 09:44 PM
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#1 |
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Registered User
Join Date: Oct 2003
Location: Cumming, Ga
Posts: 234
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Breather for Valve Cover
I have these valve covers in the pic. The passenger side is vented into the car air filter. The drivers side I think needs a breather but the hole is funny shapped and smaller than the breathers I can find at Auo Zone. Any suggestions on what I should do? Vent both sides at the airfilter on the carb?
Glenn http://picasaweb.google.com/lh/photo...eat=directlink http://picasaweb.google.com/lh/photo...eat=directlink
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Glenn Cumming, Ga (68 C/10 Fleetside LWB 307 (64 C/10 Fleetside Shorty Custom 350, with 73 donor parts aplenty) (2001 Porsche Boxster S - 168 MPH of fun) (2005 Chevy Avalanche Z71 1500) |
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03-30-2009, 09:58 PM
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#2 |
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Gone to greener pastures
 Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: Breather for Valve Cover
In picture # 6, that is the PCV valve and should be connected to a manifold vacuum source, generally the base of the carburetor below the butterflies.
The other side should go to either the base of the air filter INSIDE the filter ring, or have a filtered breather; so that the PCV system is pulling clean air through the engine.
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'69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck Last edited by El Jay; 03-31-2009 at 07:43 PM. Reason: spelling |
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03-31-2009, 07:12 PM
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#3 |
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J'ville Junkman
Join Date: Mar 2006
Location: Pomeroy, Ohio
Posts: 572
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Re: Breather for Valve Cover
Do what el-jay said for the pcv valve on passenger side. It should go to the big fitting on the base of the carb. Usually in the front in the middle.
As far as the one on the driver side, you want that one pulling in fresh air. You can buy a small pod style filter for it at autozone. A pic is attached so you can see what it looks like. I just saw them there this weekend. Or back in the NO MONEY days, I cut the bottom off a pcv valve (and pulled the check valve out) and then put the modified pcv valve (free flowing) there and then just used a rubber hose from the modified pcv to the bottom of my chrome air cleaner.
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72 3/4t Suburban 402BB (Daily driver for 8 years)  68 GTO (never ending proj) 91 Kawasaki ZX-7R 57 Chevy 210 Wagon - 9 Passenger (Wife's project-working on floorpans) 73 Corvette (17 yr old daughter's: Another project - what's wrong with me?)  53 Willys M38 |
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