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ToMopar

Posted 2015-09-18 3:14 AM (#489937)
Subject: leaky transmission

Elite Veteran

Posts: 1159
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Location: D-70199 Heslach

When motor/transmission is cold, every time I start the car, it leaks a mass of ATF in case I push the "D" pushbutton.
I found out, the ATF comes out of the trans dipstick tube. The transmission is a 3 spd TorqueFlite from a 57 Fireflite.

Any ideas...

wizard

Posted 2015-09-18 3:19 AM (#489938 - in reply to #489937)
Subject: Re: leaky transmission

Board Moderator & Exner Expert 10K+

Posts: 13049
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Location: Southern Sweden - Sturkö island

This could be many causes Tom, after checking that the vent isn't clogged, I'd start with confirming that the dipstick is the correct one by emptying all transmission fluid (also the converter), measure up the volume and refill the fluid to the correct capacity.

ToMopar

Posted 2015-09-18 6:25 AM (#489943 - in reply to #489937)
Subject: Re: leaky transmission

Elite Veteran

Posts: 1159
1000

Location: D-70199 Heslach

Sven, even at the risk to blame me, where is the vent of trans ?

wizard

Posted 2015-09-18 6:56 AM (#489945 - in reply to #489937)
Subject: Re: leaky transmission

Board Moderator & Exner Expert 10K+

Posts: 13049
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Location: Southern Sweden - Sturkö island

No problems Tom, look on top of the rear extension (alu), there is a metal cup that is supposed the vent out air. The metal cup should be rattling somewhat - if not you must clean it up.

Chrome58

Posted 2015-09-18 7:31 AM (#489947 - in reply to #489937)
Subject: Re: leaky transmission

Expert

Posts: 1316
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Location: Belgium, 40 miles south of Brussels

It might come from the fact that the engine has not been started for a long time.
When that's the case, the torque converter slowly empties its ATF into the transmission, causing overfill and spillage.
The cure is to start the engine, and let it idle for less than a minute, every week.

wizard

Posted 2015-09-18 7:44 AM (#489948 - in reply to #489937)
Subject: Re: leaky transmission

Board Moderator & Exner Expert 10K+

Posts: 13049
5000

Location: Southern Sweden - Sturkö island

If a transmission pukes out oil - there's always a reason. Even with the drainback from the converter, the transmission will handle this in a blink of an eye. As soon as the engine starts the transmission front pump will fill up the converter very fast.

Even if I leave my car a month without starting the Engine, there will be no transmission fluid puke out. Some transfluid might leak out from the throttle lever seal, but that's "normal".

57chizler

Posted 2015-09-18 2:45 PM (#489979 - in reply to #489943)
Subject: Re: leaky transmission