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I have a old pcv valve im going to take apart to better familiarize myself with the inner workings

thanks sorry it was late last night when i saw the diagram, i thought i saw a separate valve

rocket science no, but science yes lol along with some physics

Hey at least i had enough knowledge and common sense to hook my pcv system up right, i know the purpose of it. Just never really got into the specifics of how exactly the pcv valve operates. They should of put that one on joe dirt. Hows a rainbow made? How does the sun set? How does a pcv valve...

lol thats hilarious, may hook it up to the shop vac. Jk. I know its a simple concept, makes a lot more sense now that i know the orfice controls the flow. I honestly thought there was just that one valve in there.

Hey i figured it wouldnt hurt to ask lol ya never know.

So weird question. I have a vacuum brake bleeder pump. If i were to hook the pump to the pcv valve, put my finger over the bottom hole of the pcv valve and pull a vacuum on the pcv valve, i could take my finger off then slowly release the pressure a little at a time while watching the gauge and...

thank you! That makes so much more sense, so when you use your mouth to try and apply a suction through one your not moving the orfice but rather the backfire valve. I was having a hard time understanding how it would flow with less vacuum when i was assuming the backfire valve was what is...

Ahhhhhhh thats right

Ok guys forgive me but i still am confusing myself, ive reread the thread about 3 times. Im still having a hard time understanding the transitional value for the pcv vacuum. So for example if i had 10-12 inhg of vacuum at idle and had a pcv with a transition in the 8 inhg range wouldnt the pcv...

Which fender emblem are you referring to? I thought the pentastar was the only fender emblem on the demon

Most of the aftermarket drums for newer cars and trucks have flat spots milled in the drum in a spot which i assume is to balance, you shouldnt have a issue removing the weights.

I searched and only have seen them mentioned in a few posts but has anyone had any experience with billet specialties products wether it be air cleaners, valve covers or radiator caps? Hows the quality? I have a ball nilled billet breather and pcv ordered, i think they will match my aluminum...

Im running 15W-50 mobil one full synthetic. Engine builder recommended it, from what i remember he opened up the oil passages some and im sure he knew what the tolerances were. Having the engine builder tell you what to run is a good basis to go off of. But if you cant talk to the engine builder...

thanks, i have it in the middle port which is for the pcv, manual brakes so i have the booster port capped off on the back

Never mind, i just remembered my edelbrock carb has a separate manifold vacuum port. Day has been too long lol

Also how does the pcv valve affect the idle air mixture adjustment? I though you disconnect the pcv from the carb when you put the vacuum gauge on anyway. I know how they work just always thought they were opened or closed, you would think with less vacuum at higher rpm they would close and be...

I mean its a decently aggressive street engine. 9.5:1 comp 108 duration i believe, dont quite remember the full cam specs but its a lunati voodoo cam. this is the first time i looked under the pass side breather, pretty clean. Some light oil residue but i guess thats to be expected. This...

Ahhh makes sense, so i know theres no need to re invent the wheel with the crazy adjustable pcv valve but how do you know which pcv valve is right? I dont remember which one i got but its a cheapy off of the help section at autozone, may be a dorman not sure

i was just curious as the one i have now i can suck the smallest amount with my mouth and it causes the valve to come up, but no matter how hard i try i dont see how its more restricted with higher vacuum, i thought they were either open or closed