Catch can line

[Sjames0056]

Ok guys, another ?
I just installed an oil catch can that i had laying around. I seen that my pcv valve was leaking alittle so i added another rubber o ring to seal it up. Also i used fuel line from the can to the pcv and the line is pinching shut. Any ideas?

 

[Johnbigdog]

Fuel injection hose is intended for pressure. Fuel line is not intended for great pressure. Vacuum line is not intended for pressure but will not collapse under a vacuum.

The positive crankcase ventilation system pulls a slight vacuum on the engine internals to scavenge vapors and burn them under no boost situations. This vacuum also helps in the performace departmwnt too. Under boost the pcv valve and other valves (i forget how our 3.5s work with the evap system) should prevent boost from filling the crankcase, but there is still an outlet to the fresh air tube for normal positive pressure. This is why we see oil in this tube.

You're using a hose that was not ment for the intended job. A vacuum hose, metal or hard plastic may be able to do the job.