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!

[GregWeld]

Originally Posted by DBasher

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

A coat if many colors. But I'm on the airplane to sun valkey beachside I do not have to go to work. <sticking tongue out>

[Vince@Meanstreets]

op,
plus catch cans don't come in too many sizes. That ones a universal type.

Back in the old days we use to use clear plastic fuel filters with 3/8" ports. -bout 2" diameter. The oil that gets pushed up goes into the filter then drains back down. The key, you want it to drain back and not fill the can.

[Vince@Meanstreets]

Greg is right, you need a large hose. We used the Fram G12 filter's if you wanna go the cheap and easy route. Hook up to the well side not the filter side.

[rustomatic]

Vince--this is the kind of idea I like. I am going to steal it now, especially since I have one of those old-school filters in one of my garage cabinets right now (along with two really sweet looking eBay-sourced canisters)...

I'll need to place more cool steel tubing in my trunk first, however, so as to have a fashionable place to mount the can...

Originally Posted by Vince@MSperfab

op,
plus catch cans don't come in too many sizes. That ones a universal type.

Back in the old days we use to use clear plastic fuel filters with 3/8" ports. -bout 2" diameter. The oil that gets pushed up goes into the filter then drains back down. The key, you want it to drain back and not fill the can.