TrailBeast
AKA Mopars4us on Youtube
Simple yet effective PCV
yabut., is that system gonna flow enough backwards at WOT after 13/14 seconds, to not blow the dipstick out.. or worse
OEM has been doing it like that since about 1963
Beg to differ. Just an example Look in the mopar factory service manual (1972) section 25, pg 15 and 16, figure 4, under crankcase emissions. Hose goes to air cleaner. Only the very early PCV systems had a breather open to air.Not like that. It’s like AJ said. With a breather open to manifold vacuum when it drops at WOT any blow by will go right into the engine. The OE’s didn’t do that.
They have a breather that’s open to atmosphere so at WOT the blow by can go somewhere other than the engine.
IMO, the guy who made the video should have just blocked off the open breather all together and just let the PCV pull a vacuum in the crank case.
Have you ever heard or read of vacuum stripping the oil out of bearings when running a sealed crankcase PCV?Not like that. It’s like AJ said. With a breather open to manifold vacuum when it drops at WOT any blow by will go right into the engine. The OE’s didn’t do that.
They have a breather that’s open to atmosphere so at WOT the blow by can go somewhere other than the engine.
IMO, the guy who made the video should have just blocked off the open breather all together and just let the PCV pull a vacuum in the crank case.
NO, I have not heard of that.Have you ever heard or read of vacuum stripping the oil out of bearings when running a sealed crankcase PCV?
Ford never used a valve cover breather that was open to the atmosphere, so their system is exactly like @TrailBeast outlined and worked fine.Not like that. It’s like AJ said. With a breather open to manifold vacuum when it drops at WOT any blow by will go right into the engine. The OE’s didn’t do that.
They have a breather that’s open to atmosphere so at WOT the blow by can go somewhere other than the engine.
IMO, the guy who made the video should have just blocked off the open breather all together and just let the PCV pull a vacuum in the crank case.
If course it will, the breather and hose to the filter is OPENyabut., is that system gonna flow enough backwards at WOT after 13/14 seconds, to not blow the dipstick out.. or worse
Either you are wrong or did not word this well. The system as pictured differs only in one way from some of the cars I've owned--My 69 383 RR for example, had the hose from the air filter bonnet to the breather, was on the DIRTY side of the filter. I don't even remember anymore, if the 6BBL 70 was on the clean side or the dirty side. The method pictured, is essentially how all OEMs were done for yearsNot like that. It’s like AJ said. With a breather open to manifold vacuum when it drops at WOT any blow by will go right into the engine. The OE’s didn’t do that.
They have a breather that’s open to atmosphere so at WOT the blow by can go somewhere other than the engine.
IMO, the guy who made the video should have just blocked off the open breather all together and just let the PCV pull a vacuum in the crank case.
You say that like it was a fact.If course it will, the breather and hose to the filter is OPEN
Have you ever heard or read of vacuum stripping the oil out of bearings when running a sealed crankcase PCV?
Either you are wrong or did not word this well. The system as pictured differs only in one way from some of the cars I've owned--My 69 383 RR for example, had the hose from the air filter bonnet to the breather, was on the DIRTY side of the filter. I don't even remember anymore, if the 6BBL 70 was on the clean side or the dirty side. The method pictured, is essentially how all OEMs were done for years
I asked because I tried a sealed crankcase pcv with a fixed orifice (under the intake manifold) and had weird oil pressure problems. When I researched it I seem to remember finding others with the same issue, and an article from good source stating that’s what was happening. Of course I can’t find it now. Regardless I went back to the previous setup with a fixed orifice and a one way check valve and inlet air metered through the throttle body and all was well.
Have you ever heard or read of vacuum stripping the oil out of bearings when running a sealed crankcase PCV?
I think that’s where the info I found came from. Maybe on YB where guys running vacuum pumps we’re having the issue.I think if that was true then people running crankcase vacuum pumps would be having that problem like crazy...?
I asked because I tried a sealed crankcase pcv with a fixed orifice (under the intake manifold) and had weird oil pressure problems. When I researched it I seem to remember finding others with the same issue, and an article from good source stating that’s what was happening. Of course I can’t find it now. Regardless I went back to the previous setup with a fixed orifice and a one way check valve and inlet air metered through the throttle body and all was well.