Gu Patrol Breathers (Diff/Transfer/Gearbox)

Breathers only work if they are clear of obstruction/s. To answer your question, you'd need to see if you can blow/suck air through the breather pipe. If you can do so, then it's not the breathers fault, must have been a faulty seal?

Sorry to hear about your blown seal.

Cheers

Roachie

What were you doing before the transfere case got filled with water?
Deep water crossing, water crossing while the t''fere /trans was still hot after a long run or hard work? This can "suck" water in past the seals on trans & diffs.

might pay to actually get under the patrol and see where your breathers terminate, as the "02" model rear breather goes to the chassis crossmember, the t/case has a short hose up to the firewall, and the front one just heads for the chassis rail. At least, thats what they do on mine.

meow.

rick.

Sarg has it in one.
The diffs heat up from normal use - the air inside heats & expands.
If you drive into some water, the case gets cold - quickly- decreased pressure inside - it sucks the breather shut (plastic soft from heat), then sucks water in through the seals. The breather then cools down & expands, and we are left wondering - how did that damn water get in????
All part of the adventures of life................regards.......Keith.

Theory - stop and have lunch/coffee before the water crossing, to let the diffs cool down, then drive across. We all do that, don't we Roachie ....?

HI WillisGu,
When I used my GUIII for the first time offroad, I drive over some saltbush and broke the two rubber hoses off that join the breather pipes from the transfer case. These pipes were hanging down near the transmission crossmember and were in a particularly bad location and vulnerable to say the least.
I have since replaced them with some braded tubing and fitted a plate to protect them after bending them back up out of harms way.
If your rubber tubes are split too, you will easily get a transfer case full of water if you submerge it.

Chaz