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| | | Forums66 Topics128,120 Posts1,056,321 Members48,439 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Feb 2016 Posts: 57 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2016 Posts: 57 | Hideho all, Anyone have information on the original configuration of valve covers, air cleaner, and hoses on a 1967 327 2bbl? PO was a tractor mechanic and did a bunch of "modifications" over the years, not all of them being successful. I would like to get things back to what they should be. I have a diagram for hose routing on a Caprice , not much help cause it is all different from anything on this truck Thanks!
Last edited by mac67; 03/23/2016 12:33 AM.
| | | | | Joined: Nov 2010 Posts: 1,159 Shop Shark | | Shop Shark Joined: Nov 2010 Posts: 1,159 | http://www.autozone.com/repairguide...AMS/VACUUM-DIAGRAMS/_/P-0900c1528007dbe6 Best I could find! searched for 2 hours! A lot of wiring diagrams,Not much on Vacuum!! Same thing with my T.F. '55 Chevy 2-ton! I bought a Truck Shop Manual,and there was nothing in it for the hydrovac or the 2-speed vacuum plumbing! The "brake" side of the hydrovac was covered,but Not the vacuum routing! The only "problem" I had was when I attached my 2-speed lines.I had them switched. Button "Up" is "Hi","Down" is "Lo". I switched the lines at the diaphragm,and it worked as it should. | | | | | Joined: Feb 2016 Posts: 57 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2016 Posts: 57 | Thanks, Thought it was just me....The valve covers have both had half inch copper pipe brazed into a hole cut and hoses routed to the same kind of setup to the underside of the air cleaner housing. Manifold has a plugged rubber tube just to the left side in front of the carb and vacuum hoses...? | | | | | Joined: Jul 2008 Posts: 326 'Bolter | | 'Bolter Joined: Jul 2008 Posts: 326 | If you google "1967 C50 327" and click on images, there are a couple of pictures of 327s and their hose routing. May give you some clues.
SimS | | | | | Joined: Feb 2016 Posts: 57 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2016 Posts: 57 | So I have figured out that there is no PCV valve in the system...there is one hose run from each valve cover to the underside of the air cleaner housing. It has a breather cap on the oil fill tube up front and a bolt in a rubber hose in the vacuum fitting in the manifold in front of the carb. (2BBL) Seems like this would just be sucking crankcase gases directly into the carb. How should this be properly set up. I have a replacement OEM air cleaner housing in a box and it has no hols in the bottom for any fittings. What to do? On a positive note I got the hoses to the bed hydraulics replaced today and she lifted to the sky for the first time in 20 years..... | | |
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