“All things are subject to interpretation whichever interpretation prevails at a given time is a function of power and not truth.” 2006 Tacoma DC Sport 4x4
No idea... Australian based company i assume. The only think they really are offering with the kit is the filter...
I thought this vid really explained the theory behind the Diff Breather mod. Pretty good stuff!
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“All things are subject to interpretation whichever interpretation prevails at a given time is a function of power and not truth.” 2006 Tacoma DC Sport 4x4
I'm glad I watched that video as I was wrong about how differential's let water in. I was right that they suck water in when they get supercooled by passing through water, but I had no clue the water sucked in through the seals and not the breather.
I'm starting to rethink the way the breather mod was put up on here. Theoretically we could extend our breather line as far as we wanted to and it still won't work. If we put the breather attachment on the end of the tubing like the mod suggests to, we're still going to suck water in through the seals.
They say to use the open filter... i am thinking it is like a lawnmower filter... leaving it open will keep the seals closed but allow the diff to "breath"
__________________
“All things are subject to interpretation whichever interpretation prevails at a given time is a function of power and not truth.” 2006 Tacoma DC Sport 4x4
I'm glad I watched that video as I was wrong about how differential's let water in. I was right that they suck water in when they get supercooled by passing through water, but I had no clue the water sucked in through the seals and not the breather.
I'm starting to rethink the way the breather mod was put up on here. Theoretically we could extend our breather line as far as we wanted to and it still won't work. If we put the breather attachment on the end of the tubing like the mod suggests to, we're still going to suck water in through the seals.
Right?
Here's a cheaper version. Get a bladder case from an arctic cat dealer along with a toyota diff tube and put it on the diff. It's totally sealed but still allows for expansion and contraction of air and fluids. That way there is no chance of water getting in.
I'm glad I watched that video as I was wrong about how differential's let water in. I was right that they suck water in when they get supercooled by passing through water, but I had no clue the water sucked in through the seals and not the breather.
I'm starting to rethink the way the breather mod was put up on here. Theoretically we could extend our breather line as far as we wanted to and it still won't work. If we put the breather attachment on the end of the tubing like the mod suggests to, we're still going to suck water in through the seals.
Right?
Someone correct me if I'm wrong... *cough* AN *cough*
But I would think the diff breather mod would still work. Relocating the breather to higher ground would mean that it won't get chilled by the cold water and lock lock down right? It would still be at air temp or warmer (as in the ones in the engine bay that Toyota relocated themselves) so they should still be open.
The only problem I see is if those breathers don't warm up enough to open, but the diff's still change pressure. Then they wouldn't open up to let air in OR out.
So I guess the question is, are these breathers open by default? If not, then you're right Rodge. We need filters instead of breathers.
__________________
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Toytec 3" lift & AAL, 285/75r16 Kumho Road Venture
DTRL, Fog Light, locker, & diff breather mods, Bestop Supertop, Hi-Lift mount, hood struts, reinforced tailgate, BHLM, ABS kill switch, bed lights, rock lights
Someone correct me if I'm wrong... *cough* AN *cough*
But I would think the diff breather mod would still work. Relocating the breather to higher ground would mean that it won't get chilled by the cold water and lock lock down right? It would still be at air temp or warmer (as in the ones in the engine bay that Toyota relocated themselves) so they should still be open.
The only problem I see is if those breathers don't warm up enough to open, but the diff's still change pressure. Then they wouldn't open up to let air in OR out.
So I guess the question is, are these breathers open by default? If not, then you're right Rodge. We need filters instead of breathers.
I was under the impression that the cool water caused a pressure drop inside the differential which was what caused the air/water to suck in. So in turn, the differential breather, even though it's five feet off the differential is still going to suck shut. They are open by default because of the spring inside them.
But, now that I think of it more, the factory extensions have that 1 way valve/breather on them as well.
I was under the impression that the cool water caused a pressure drop inside the differential which was what caused the air/water to suck in.
That is how the vid describes it
__________________
“All things are subject to interpretation whichever interpretation prevails at a given time is a function of power and not truth.” 2006 Tacoma DC Sport 4x4
I was under the impression that the cool water caused a pressure drop inside the differential which was what caused the air/water to suck in. So in turn, the differential breather, even though it's five feet off the differential is still going to suck shut. They are open by default because of the spring inside them.
But, now that I think of it more, the factory extensions have that 1 way valve/breather on them as well.
I see what you're saying. The cooling diff sucking in air is what pulls the breather shut is what you're thinking.
From the video it sounded like the valve opens as you drive, and closes when the diff is cool. (at least according to their reference about people waiting for the diff to cool before continuing deeper into the water)
So from the sounds of it the breather is normally closed. Driving for X amount of time heats up the diff fluids/air to increase pressure and open the valve. Then a water crossing (without waiting) cools the diffs so fast that
A.) the valve closes before pressure equalizes and water gets sucked in through the axle seals until pressure equalizes
-or-
B.) the valve sucks water in as before it closes because it's already under water before it closes.
Or maybe a little bit of both. The video seems to imply option A. is the problem.
I'm thinking the spring being out of the water (extended via the mod) would close slower if it closed at all. Figure that a hot material shrinks when cooled rapidly so a hot spring plunged under water would close the valve while a warm spring out of the water would not.
So does it come down to how fast and how much air is drawn in during the cooling? If it's not enough to suck the breather closed we are fine. Also, even if it did close the spring wouldn't it cause the hose used to extend the breathers to collapse slightly? The air in the hose (figure 5" of 1/4" fuel line hose) may be enough to equalize the pressure inside the diff?
__________________
^sig by me!
Toytec 3" lift & AAL, 285/75r16 Kumho Road Venture
DTRL, Fog Light, locker, & diff breather mods, Bestop Supertop, Hi-Lift mount, hood struts, reinforced tailgate, BHLM, ABS kill switch, bed lights, rock lights
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