We have completed the single valve system for the 5.0 and these can also be ordered through Mike here. The 5.0 is NA and only requires the single valve can unless your running hard quite often, then the dual valve can be used with the secondary outlet tapped into the main intake air tube app 2-3" upstream of the throttle body. All else will be the same.
Lets start with the 5.0 PCV system. THIS is one of the best designed of all Ford engines as far as function and providing near constant evacuation of a proper level to prevent accumulation of the combustion byproducts in the crankcase and further contaminating the engine oil. Unlike the ecoboost that is the least effective we have seen of any system.
So to begin, the 5.0 system takes it's fresh air from the intake air bridge after the MAF has metered (measured) the incoming air, as it all eventually is introduced in to he combustion chamber and the ECU/PCM needs accurate input from the MAF, the MAP, and the upstream O2's to determine proper fuel trim adaptation.
We removed the intake tube to inspect it and the throttle body as well as the intake manifold it'self and see how severe the oil ingestion was on this truck. Fortunately this owner broke it in "like he stole it" the first 500 miles so ring seat is excellent, with no measurable oil consumption between changes. So we found zero oil in the intake tube, dry as could be which is an excellent sign. We then removed the throttle body and it had some soot buildup from reversion pulses so we cleaned it:
We looked into the intake manifold, and as all we see, this was saturated and pooled with oil:
This we taped clean towel to a long screw driver and were able to clean most, the rest will work its way out over time as long as the ingestion is halted.
So we first look at the dirty side (foul) on the passenger side valve/cam cover. This is where the combustion byproducts are evacuated from the crankcase before they have a chance to accumulate. We disconnect the hard line from the valve cover to the barb just behind the throttle body on the intake manifold snout: (note plastic tab to push aside to release fittings)
Leaving the barb exposed:
With this removed we carefully slit the hard plastic tube so it will pop off the fitting and the fitting is reused:
Then to mount the bracket and can to the horn mount bolt. First pop the retaining clip from the hood release cable to make room:
Then the short L of the bracket is bolted to this bolt, and slightly clock the horn set to the right for clearance and zip tie the cable to the bracket:
The long Z bracket then bolts to the short L through the slot in the L so it can be adjusted for a good fit. Place the washer on the 1/4-20x1.5 bolt on the hole side of the Z:
The can can then be mounted using the 2 1/4-20x.5 bolts and lock washers to the slot in the Z so it sits up and down and is ready to attache hoses. The center of the can runs to the passenger side valve cover, and the outer fitting with checkvalve flowing away from the can connects to the intake manifold barb:
We then move to the cleanside. The clean side separator will slip firmly onto the barb on the drivers side valve cover and the line is run from it to the open barb on the air bridge:
And start the engine and check for vacuum leaks, and your ready to enjoy oil free intake air charge. And since this system stops all the oil, not just part of it from entering the intake air charge, aside from preventing deposit issues down the road, the immediate benefits are a slight increase in power as the detonation caused by the oil is eliminated and MPG generally increases 1-3 MPG as well as the ignition timing advance is not being pulled due to knock detected.
Piston ringlands remain clean and deposit free allowing proper seal as well.
