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post #1 of (permalink) Old 11-16-1999, 02:06 AM Thread Starter
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extending breathers...what hose?

I would like to extend my breathers but I'm not sure what type of hose to use? I know it has to be fairly heat-resistant because I'm going to run it into the engine compartment. Anybody done this or have a good idea of what to use? thanks.

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post #2 of (permalink) Old 11-16-1999, 08:05 AM
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Re: extending breathers...what hose?

>>>Hiya, I used 3/4 inch air compressor hose for mine. The same kind you use for shop tools and spray guns. Most are made to be chemical resistant and will say on the casing if they are. The closest mine gets to anything too hot is about 8 inches from the cat near the frame rail. I ran mine up by the solenoid and used a single length from front to rear and just tied in at the rear axle, t-case, and front axle using large plastic T's like used for vacumm systems or plumbing. This seems to be holding up great, the hose was run inside the frame rail for protection. I also tried the flexible coil hose made of plastic for the rear for flexibility. Saw it under a lot of show rigs and that seems to be where it belongs, under show rigs. It didn't hold up to heat(exhaust pipe), thick mud, and/or things commonly found mixed in with mud(sticks, rocks, small cars). I just lengthened the 3/4 and left enough slack for full droop. Good luck to ya. Laters.

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post #3 of (permalink) Old 11-16-1999, 06:49 PM
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Re: extending breathers...what hose?

3/4 inch is pretty big, I might use 1/4 or 3/8 instead.

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post #4 of (permalink) Old 11-16-1999, 07:04 PM
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Re: extending breathers...what hose?

pardon my stupidity, but what does extending a breather do? If we are talking about the same thing, my breather is just a tube from the oil filler cap that hooks up to a small filter in the air filter box. (my bronc is fuel injected)HOw do I extend it, and what will it do for my truck?

Roland

post #5 of (permalink) Old 11-17-1999, 02:28 AM
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Re: extending breathers...what hose?

It's not that kind of breather. The correct name is axle vent tube. You extend them so not to get water in your axles, this could cause a lot of damage.
The transfer case and transmission also have vent tubes. A good idea is to run them away from heat sources and on Broncos thats pretty easy to do since they have nothing that conducts heat underneath the drivers of the frame, except for the manifold exhaust pipe. I ran mine all the way up into the engine compartment and attached it to the firewall with a 6" drip loop with the opening facing down so if water can get in now I think water in my axles is the least of my worries.

Hope this helps.

Alex "Bravoman"

post #6 of (permalink) Old 11-17-1999, 08:17 PM
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Re: extending breathers...what hose?

Hey bravoman, I am extending the vent hoses on my 97 F-150. It has the carbon canister mounted above the spare tire. I have to extend that vent hose plus the f&r axles, transfer case. However I could not find one for the trans. Does it not breathe through the filler neck. It is an E40D, the same transmissions offered in the older trucks.. Does it have a tube hidden or something, I barely found the one on the transfercase.

post #7 of (permalink) Old 11-17-1999, 10:56 PM
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Re: extending breathers...what hose?

I don't know about the E40D, I have the C-6 tranny. Sorry.

post #8 of (permalink) Old 11-18-1999, 12:31 AM
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Re: extending breathers...what hose?

You must have a late 90s or older bronco. Thanks anyway. Those c-6 are indestructible. Had one in my 79 4x4 and my dad has had them in his trucks.
From what I understand the E40d is derived from the c6.

post #9 of (permalink) Old 11-22-1999, 06:44 PM
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Re: extending breathers...what hose?

Hello Bravoman, I'm curious, I haven't noticed any vent tubes on my tranny (C6) nor the transfer case (I have an '88 Bronco). Can you suggest where I might look? Many thanks,


post #10 of (permalink) Old 11-23-1999, 04:42 PM
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Re: extending breathers...what hose?

I haven't looked up on my 87, but the vents will be somewhere near the top of them so they may be difficult to see without a mirror.

Mark
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