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Old 03-24-2009, 04:48 AM
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powerglide ?

Does the powerglide have any type of converter anti-drain back system in it???

I built one for a customer a year or so back. He is having problems when it sits for an extended period of time it will leak. I have found that the fluid level will rise on the dip stick after it sits and the leak is coming out of the shifter shaft. He told me the trans did the same thing before i rebuilt it. i did install a new seal in the case where the shifter shaft goes. But i don't think that seal was designed to swim under trans fluid.


Keith

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Old 03-24-2009, 10:33 AM
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I don't think they have anything like that on them, yes after some sitting they will drain back into the pan, most of the time they leak on the dipstick tube, I always liked to put silicone on the tube o-ring and case and put it in and let it sit till the silicone set up before putting fluid in . Using a deep aluminum pan will also help by running just the amount of fluid the trans calls for, you would have another 2 quarts of capacity for drain back.



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Originally Posted by k-star
Does the powerglide have any type of converter anti-drain back system in it???

I built one for a customer a year or so back. He is having problems when it sits for an extended period of time it will leak. I have found that the fluid level will rise on the dip stick after it sits and the leak is coming out of the shifter shaft. He told me the trans did the same thing before i rebuilt it. i did install a new seal in the case where the shifter shaft goes. But i don't think that seal was designed to swim under trans fluid.


Keith
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Old 03-24-2009, 10:43 AM
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The 'glide in my 66 would leak out after sitting for a long time.

Not a problem now--------TKO 5-spd fixed that
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Old 03-24-2009, 12:21 PM
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Powerglide trouble.

IF this is one of the old CAST IRON Powerglides, then yes, they have an inherent problem known as "burping". After they sit a while, and the converter drains back, tranny fluid gets pushed up the SHORT dipstick tube, and floods out a bunch of tranny fluid, it "burps". Check with the classic Chevy vendors, they sell a valve that goes in one of the cooling lines that helps with this. IF it's an aluminum Powerglide, I have never heard of one doing this.
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