69 383 pcv valve

[CBODY67]

Let's say you have a generic Mopar V-8. PCV on the passenger side rear and the crankcase breather/oil filler cap push-on breather on the driver's side. Remove the push-on breather cap and put the paper on the tube the breather pushes onto. However what I described might relate to what is on your engine is to be determined.

KEY thing is that with the engine running, the pcv system pulls a vacuum on crankcase. As fresh air in pulled into the crankcase via a filtered opening/breather cap.

You can also use the oil filler cap hole, if it is a scfrew-on cap. Remove the cap with the engine running and check the air flow into the engine from there, I suspect.

CBODY67

 

[polarnj]

Let's say you have a generic Mopar V-8. PCV on the passenger side rear and the crankcase breather/oil filler cap push-on breather on the driver's side. Remove the push-on breather cap and put the paper on the tube the breather pushes onto. However what I described might relate to what is on your engine is to be determined.

KEY thing is that with the engine running, the pcv system pulls a vacuum on crankcase. As fresh air in pulled into the crankcase via a filtered opening/breather cap.

You can also use the oil filler cap hole, if it is a scfrew-on cap. Remove the cap with the engine running and check the air flow into the engine from there, I suspect.

CBODY67

Mine is a cap on the drivers side with a hose attached, which is just hanging in the air right now since there's nothing to attach it to. I'll try putting the paper on the end of that hose

 

[1970FuryConv]

That's what I'm afraid of
If a piece falls in there will it do any damage, or just sit in the valve cover?

When a grommet has turned rock hard from age and heat, utility knife always works for me. I usually make slices to loosen the grommet, rather than cut it into pieces.
If pieces fall, they just sit in the baffle of valve cover or on top of the head below the valve cover.
No way they can fall down into the engine.