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Old 05-13-2012, 07:26 PM   #1
marlyman
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Default leak from t5 breather??

just droppd 800 on rebuilt t5 an after putting in everything is great super smooth only problem is huge leak from wat seems to b the breather tube..i tried researching b4 i made a post but didnt find much..uhm speedo cable an sensors are all tight it was a quality rebuild i guess my question is how to properly fill the t5? does it have to b hot? i only pump the dex/merc fluid til it seeps out of the top filler hole..do i keep overfilling? cuz i keep toping it off after a few drives cuz its obviosly leakin bad an onto exhaust lots of smoke so embarrissing!
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Old 05-13-2012, 07:40 PM   #2
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What breather? I have never seen one.
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Old 05-13-2012, 07:47 PM   #3
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.....they all should have one..its on the topside inbetween shifter housing n like bellhousing ..its a plastic tube wit a little cap that is a total pain to pop off while under the car...im hoping i just overfilled sumhow...any other options? i replacedthe rearseal everythings tight i dunno wat else but the breather spittn out excess since once hot it expands..?
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Old 05-13-2012, 08:40 PM   #4
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To come out of a breather you would have had to fill it up too much. Just set the car on level ground and take out the top plug and let it drain out.
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Old 05-13-2012, 09:09 PM   #5
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It is said that I have re-built a tremec before and didn't remember a breather . Anyways yeah, you must have it overfilled. Do like mustanggt86 05 said and take the top plug out and let it drain.
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Old 05-14-2012, 12:51 AM   #6
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My t5's never had breathers. Dont think I've ever seen a breather on any standard transmissions. There's no pressure internally to require one.
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Old 05-14-2012, 01:21 AM   #7
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I didn't think so either but giving him benefit of a doubt, its gotta be coming from somewhere
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Old 05-14-2012, 03:46 PM   #8
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??? the breather on my wc t5 is a small like 2 inch plastic tube with a cap that sits loosely on top of the tube.. right by the top plate of transmission that u can unbolt...so i've filld a t5 before an never had this problem..i only unscrew top plug an pump til it starts coming out on its own..but if i did overfill the smoking/leaking should soon stop i would assume..as long as i dont keep refilling...but if thats not y im leaking ima just run the rebuilt trans to the ground since low oil uhgg! ...the rebuilt i just bought an my old broke trans both had same breather tube wit loose cap in same spot..
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Old 05-14-2012, 04:07 PM   #9
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That sounds like a breather, its just that the t5s do not use a pump (as most any manual tranny), they simply dip the gears in the fluid and trace it through the grooves. I would just remove that plug and see if anything comes out, if not then...I don't know, the only thing I could think of is it splashing the fluid up through there but why I don't know.
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Old 05-14-2012, 07:57 PM   #10
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I did look at a t-5 rebuild manual that showed a vent tube after posting. So I guess some of the older ones have them. Or maybe it is a t-5 for a different type vehichle...idk

anyways, I would get the right amount in it. If it is blowing out the vent tube, I can't think of anything that would cause it other than being overfilled.....
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Old 05-14-2012, 07:57 PM
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2009, 89, automatic, breather, ford, gt, leaking, leaks, long, mustang, oil, overfill, removal, t5, transmission, tube, tubes, vent

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