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Old 08-16-2011, 05:37 PM
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Water in trans after flood

My car, T-bucket, was in my garage when it flooded. The water was above the centerline of the crank. I did not start the car. The water line is visible on the body, the top of the pitman arm and the headers.

I drained the engine oil - no water. The water did not get as high as the dipstick. I drained the rear end - no water. Then I drained the trans. WATER in the fluid.

My question is - should I remove the trans and drain the torque converter? Can I drain the torque converter well enough or do I need a new one?

I think that the water got in through the vent , TH-350 trans.

Also posted on another froum.




Last edited by longt; 08-16-2011 at 05:55 PM.
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Old 08-16-2011, 06:38 PM
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Here is a suggestion. Drain the trans fluid and put in new. Run the engine until warm and check trans dip stick to see if any water beads are present. If water is present drain the fluid again and fill with new fluid again. You probably want to replace the trans filter at some time. Keep doing this until no water is present.

Hope this helps.

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Old 08-17-2011, 12:02 AM
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If there's water in there, after running, the fluid will look like Strawberry Milk.
Water in a Trans is Bad, the glue used to hold the Clutch friction material on is water based. When the Trans gets hot it will steam the Clutch material off.

I doubt any got in the TC but, removing it & letting it drain in a Bucket will will tell you. Since it hasn't been run, letting the Trans set with Pan off should be fine to dry it out.

Water usually gets in by the Vent, Dipstick, Detent Cable or Yoke seals.
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Old 08-18-2011, 06:44 PM
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I agree with SSsedan. The glue on the clutches is water soluble. If the water has reached the clutches, it probably got absorbed into the clutches, and even if you drain the fluid, the water is in the fiberous pores of the clutches and most likely will destroy the clutches in short order.

It won't hurt to drain it, install fresh fluid, run it for a few miles/minutes, and drain/fill a 2nd time to try and get all of the water out. It might take a 3rd drain/fill sequence just to really get it all cleaned out. It is unfortunate that this happened and I hope that flushing & filling it helps you avoid problems.
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