Venting the rear axle

[DBasher]

How much of an axle breather is needed? This picture was taken of Greg's Mustang and I don't understand why such a big can....When I played off-road we'd just run the vent high enough to stay out of the water, no can just a filter and check valve, I do realize it was low rpm compared to a track car.

I'm putting together my 9" and would like to understand this a bit better.

Thanks
Dan

[DBasher]

Ok, let me ask this.

I'm putting in the axle seals that are close to the 3rd member, where do I now vent the differential?


Dan

[GregWeld]

I'd vent the pumpkin housing -- vent installed HIGH -- and NOT on the gear side as they'll sling oil at it.

It will also need to be large enough in diameter that it doesn't push oil in the tube and then trying to vent the gas - it pushes the oil up the tube. Had that issue on my '32


A race track doesn't want ANY grease or fluids on the track whatsoever -- so everything MUST be vented to a catch can with some kind of breather/retention... including valve covers etc.

[DBasher]

Thanks Greg

I got the first and last paragraph right off the bat, had to read the second a couple times, slower each time. Think I got it now.

Dan

[GregWeld]

Originally Posted by DBasher

Thanks Greg

I got the first and last paragraph right off the bat, had to read the second a couple times, slower each time. Think I got it now.

Dan

A


RACE



TRACK


DOES'T



WANT


ANY


GREASE


OR


FLUIDS


ON


THE


TRACK


WHATSOEVER


DASH


DASH


LOL

[DBasher]

Hardy har har! You funny guy. Are you wearing your yellow or green cotton pants today... LOL!