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| | | Forums66 Topics128,014 Posts1,055,330 Members48,419 | | 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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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| | | | Joined: Nov 2010 Posts: 339 Shop Shark | | Shop Shark Joined: Nov 2010 Posts: 339 | Finally got the engine to idle below 750 rpm, changed the PCV to the one thats recommended, V-237, now is idling at about 500rpm. When I removed the one I had install, about 16 inches from the crankcase it was all oily, sucking to much vac. 53 3100 root | | | | | Joined: Dec 2000 Posts: 3,399 Gas Pumper | | Gas Pumper Joined: Dec 2000 Posts: 3,399 | It matters doesn't it? If the PCV is robbing too much vac at idle, it changes everything. For the V-237, out of the 20 inches on the compression gauge, you are only stealing 1 inch and it maintains positive ventilation throughout the spectrum. | | |
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