pcv system and stuff
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Junior User
Joined: Apr 2011
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From: Omaha
pcv system and stuff
so my truck i have right now has two sealed caps and the pcv valve and line sit ontop the driverside valve cover. I was hopefully going to find something at the local u-pull-it.
then i started thinking if i understood how the system works it just lets out excess pressure of fumes, and seals when pressure/fumes are low.
so i was curious if one or two oil cap breath caps would work?
Chances are knowing how little there is at the local yards chances are ill be **** out of luck to get a pcv cap.
anyways thanks
-alex
then i started thinking if i understood how the system works it just lets out excess pressure of fumes, and seals when pressure/fumes are low.
so i was curious if one or two oil cap breath caps would work?
Chances are knowing how little there is at the local yards chances are ill be **** out of luck to get a pcv cap.
anyways thanks
-alex
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Is this a V8?
If so...the oil cap on the left (drivers) side valve cover has a hole in it. Using a rubber grommet, an elbow fits into the oil cap, the neoprene smog hose routes from the elbow to a nipple on the air cleaner.
The right (passenger) side valve cover has a hole in it. A rubber grommet fits into the hole, the smog valve fits into the grommet. The neoprene smog hose routes from the valve to a nipple on the front of the carb.
This same set up will be found on most 1968/79 V8 Passenger Cars, F100/350's, Bronco's and Econolines.
If so...the oil cap on the left (drivers) side valve cover has a hole in it. Using a rubber grommet, an elbow fits into the oil cap, the neoprene smog hose routes from the elbow to a nipple on the air cleaner.
The right (passenger) side valve cover has a hole in it. A rubber grommet fits into the hole, the smog valve fits into the grommet. The neoprene smog hose routes from the valve to a nipple on the front of the carb.
This same set up will be found on most 1968/79 V8 Passenger Cars, F100/350's, Bronco's and Econolines.
Thread Starter
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Junior User
Joined: Apr 2011
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From: Omaha
sorry its a v8,
some rookie before me did a real **** job of putting some "chrome" valve covers, the passenger side just has a sealed cap, driver side has a real tight fit cap. I didnt see any lines running to the passenger side cover.
i dont give two ****s about emissions if this matters i just figured the truck would run better.
so the line that comes from the carb should have the pcv valve and the other one can just have a airfilter cap or cap with a breather since its supposed to go into the airfilter anyways, right?
but realistically it doesnt matter which side has the pcv valve in the line, i could run the tube from the carb to either right? i think i might be able to snag a cap from the yard that fits the valve and just run a new line to the carb and just put a breather cap on the other.
some rookie before me did a real **** job of putting some "chrome" valve covers, the passenger side just has a sealed cap, driver side has a real tight fit cap. I didnt see any lines running to the passenger side cover.
i dont give two ****s about emissions if this matters i just figured the truck would run better.
so the line that comes from the carb should have the pcv valve and the other one can just have a airfilter cap or cap with a breather since its supposed to go into the airfilter anyways, right?
but realistically it doesnt matter which side has the pcv valve in the line, i could run the tube from the carb to either right? i think i might be able to snag a cap from the yard that fits the valve and just run a new line to the carb and just put a breather cap on the other.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Yes, you are correct...the procedure could be reversed, with the valve on the left and the cap on the right...and was on some of these 1968/79 vehicles.
But all used the same oil cap, grommets and smog valve.
You may not care about emissions, but peeps in CA do...if they own 1976 and newer stuff.
CA smog tests everything 1976 and up. ALL the original emission related parts have to be on the vehicle and in working order.
If the vehicle cannot pass a smog test, it cannot be registered. There is no waiver if the parts are obsolete. It's fix it...or park it!
But all used the same oil cap, grommets and smog valve.
You may not care about emissions, but peeps in CA do...if they own 1976 and newer stuff.
CA smog tests everything 1976 and up. ALL the original emission related parts have to be on the vehicle and in working order.
If the vehicle cannot pass a smog test, it cannot be registered. There is no waiver if the parts are obsolete. It's fix it...or park it!
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