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#84224 10/13/2007 8:35 PM | Joined: Sep 2004 Posts: 31 Apprentice | | Apprentice Joined: Sep 2004 Posts: 31 | My 54 is running stock,235 with th350trans. I want to add pcv with freeze plug to draft tube hole in block. Will there be enough vacumn to shift trans? Thanks much. | | |
#84225 10/13/2007 8:51 PM | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | lutrexen,
Maybe I don't understand your question. Any PCV additions wouldn't, or shouldn't affect engine vacuum as it pertains to a vacuum modulator or vacuum advance unit. I think this is right!
Stuart | | |
#84226 10/13/2007 8:58 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Depends where you plumb the outlets into. For the PCV use the plug on the side of the intake. The model B carb has no full vacuum outlet. You may want to drill a hole in the spacer & tap it for 1/8 pipe thread. I wonder if you might suck up oil with the pcv valve way down there.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#84227 10/14/2007 1:40 AM | Joined: Nov 2002 Posts: 1,002 Shop Shark | | Shop Shark Joined: Nov 2002 Posts: 1,002 | Automarc is right, Wrenchbender is right, but his wondering has wandered wrong.  I believe the PCV requirements went into effect in 1963 and were retro to 1952. I worked in gas station that was also a smog station in 64. I installed 3-4 PCV systems on 235s. There were several approved kits available as my not so good memory recalls. One kit eliminated the road draft tube or blocked it off. The a hole was cut in the valve cover for the PCV and a hose run to the air cleaner. Another installed the the PCV were the road draft tube was and ran a hose over the valve cover to the air cleaner or manifold. I didn't like that one, who wants to have to remove and extra hose to adjust the valves. There may have been another one with a spacer for under the carb. The spacer was common for F*rds. Another thought is on my 63 truck with a 292, I have power brakes. The power brake hose to the manifold has a 'T' in for the PCV. The 'T' is marked specifically for the PCV and brake booster. As I understand it there is some kind of reduction to the PCV. Larry
I don't own a vehicle that isn't old enough to drink.
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