![]() ![]() It's a good way to spend money on car parts with the wife's blessing (at least that's working for me). If not, get your PCV (and vapor recovery) systems working. If you're into that, great (please keep in mind that oil/gas vapors are carcinogenic). Think about it, blow-by gas, oil vapor, gas tank vapors all need somewhere to go, i.e. the atmosphere around the car. ![]() What I did notice was, when running open breathers, my car/garage always had that old car smell. So pulling all that out just because it was a "smog control" was just our ignorance. Hopefully, that covers the "what." Now, the "why." After years of running with and without PCV, I've seen no difference in power or gas mileage. The PCV carb spacer or carb port (depending on your configuration) provides vacuum that draws fresh air from the breather filter (passenger-side air cleaner housing), through the breather tube into the passenger-side valve cover, through the crankcase to the PCV valve (driver-side valve cover), though the PCV valve hose to the carb spacer or carb port, and into the intake manifold/cylinders. from the crankcase and gives them a path to get burnt off. The PCV system is designed to catch blow-by gasses, oil vapor, etc. This video goes over replacing the PCV Hose Assembly.Level of Difficulty: BeginnerApproximate time: 1/2 HourTools needed: Long screwdriver or hose toolVehicl. ![]() Since the PCV system is part of the "smog controls", we just got rid of it. Click to expand.Are you thinking of getting rid of the hoses altogether and just using breather filters? If so, everyone did that back when I was young. ![]()
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