Crankcase vent hose

[kmead]

I will throw my 5 cents in.
this is my Mann + Hummel catch tank with oil return to sump.

Does this vent to atmosphere or to the carb intake (filter or FI intake hose?)

Nice unit, very nice unit.

 

[ashmowerman]

Does this vent to atmosphere or to the carb intake (filter or FI intake hose?)

Nice unit, very nice unit.

Bottom hose to block, top hose back to the intake (carby or Injection manifold hose in my case) blue hose has a check valve in it which is taped into the sump so any oil that gets in the catch tank is returned to the sump when engine is off.

 

[lookforjoe]

I will throw my 5 cents in.
this is my Mann + Hummel catch tank with oil return to sump.

Nice! The Provent 200 series cans work very nicely, is yours an older version (bolt on cover, vs. screw cap)?

 

[ashmowerman]

Nice! The Provent 200 series cans work very nicely, is yours an older version (bolt on cover, vs. screw cap)?

No its a late one I rounded a screw so I changed it to bolts

 

[Joe F]

Question: I'm running dual DCNF's and I currently run the output of my catch tank to air (my set up is similar to Dom's). Will venting to one of the carbs be an issue?