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SCUBA MOD - Relocating Front & Rear Diff, Tranny, Transfer Case and E-Locker Breather

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Old 06-21-2013, 09:09 AM   #61
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Quote:
Originally Posted by Pugga View Post
I'm not sure if it would matter or not, but I'd want separate breathers. When you drop a hot differential or transmission into cold water, they rapidly cool and can create a decent amount of suction, granted it's only a short burst but still, I wouldn't want them sucking against each other. Say your one breather filter gets plugged, now it impacts everything, not just one part. When breathers get plugged and there is a vacuum in the differential, they will relieve the pressure somehow. If the breather is plugged, there is a potential to pull water in past the seals. If you do tie them together, I'd use a very large breather so there is really no chance of it getting plugged. Also, where they tie together, make sure you step up in pipe size each time a new line ties in for the same reason.
I was thinking you'd end up with a large line once they're all tied in. Might be easier to create a small plate steel bracket in the engine bay so three or four breathers could be mounted dress-right-dress.
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Old 06-21-2013, 09:28 AM   #62
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Quote:
Originally Posted by Pugga View Post
I'm not sure if it would matter or not, but I'd want separate breathers. When you drop a hot differential or transmission into cold water, they rapidly cool and can create a decent amount of suction, granted it's only a short burst but still, I wouldn't want them sucking against each other. Say your one breather filter gets plugged, now it impacts everything, not just one part. When breathers get plugged and there is a vacuum in the differential, they will relieve the pressure somehow. If the breather is plugged, there is a potential to pull water in past the seals. If you do tie them together, I'd use a very large breather so there is really no chance of it getting plugged. Also, where they tie together, make sure you step up in pipe size each time a new line ties in for the same reason.
My worries exactly. I think I will make a different version of this mod and post it up later.

One with all independent breathers run to the same location and fixed to a mount plate that has a cover on it. I'll try
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Old 09-18-2013, 03:57 AM   #63
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^ Did it.

Without the two-way breathers, my diff fluids had water contamination after dunking a few times. But when I put in the two-way breathers, the fluid came out clean after dunking even more times than before.

http://www.tacomaworld.com/forum/off...ather-mod.html
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Old 01-04-2014, 02:55 PM   #65
If it can't be overdone it's not worth doing
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Here's the breather I built. I'll install everything once the liquid gasket sets up.

Link



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Old 01-08-2014, 06:02 AM   #66
If it can't be overdone it's not worth doing
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Here's a question. Has anyone tested the breather on the tansfer case and transmission to see if it's actually a one-way valve? I'm in the middle of my breather relocation and put the new line in for the transfer/transmission last night. I checked to see if the oem valve was still working properly and discovered that it was a two-way valve. It looks just like the valve on the rear diff, except that there isn't a ball bearing in it.

So is this a bad part, or is it intended to be an open line?

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