Technical > Dan Dishon's Transmission Den

Glide vent line question

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gregm784:
On my FED, i run my engine puke thru the bottom frame rail to the back of the car, into a puke tank.  Pretty common deal.
I also have a tank on my trans vent line to contain anything that exits.
Would it be acceptable to plum that trans puke like into the lower frame rail?  I'd like to get rid of the trans puke bottle is possible.

I've gone over a few things in my head

a)wouldn't know when it puked, but we check fluid level every warm up
b)if a engine piston was ever compromised, pressure in that lower rail would rise, and possibly push contaminates into the trans case, via the vent.  A very light check valve inline maybe?

Any input on this? 

Thanks!

bikeguy307:
Its not very often your trans actually pukes out anything, only if it gets very hot, or breaks a converter. So checking wouldn't have to be done on every warm up. The problem I see with the check valve is it would not let the trans breath back in after cooling off. The vent on a trans is there to let air escape as it warms up and expands, so the air would need to be able to return. I would just move the trans catch tank to the rear of the car, this would get it out of your way, and if something were to happen and you puked so much ot overfilled it would all be behind the tires.

JrFuel Hayden:
On our Jrfueler we just use a light plastic water bottle, we can see how much ATF is in the overflow, and have never filled it up or had to drain it, in over 10 years.
Jon

ricardo1967:

--- Quote from: JrFuel Hayden on June 07, 2017, 12:43:43 PM ---On our Jrfueler we just use a light plastic water bottle, we can see how much ATF is in the overflow, and have never filled it up or had to drain it, in over 10 years.
Jon

--- End quote ---
Jon, I'd like to replicate it on mine. Is there a little vent in that bottle?

Roger:
Here's how I handled the venting on my car. It's cheap, efficient, and easy to make.

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