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Re: Rust on tranny dipstick.
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Originally Posted by blazes9395
Rust on the dipstick is not a good thing. It means water is getting in there somehow, and it has to be fixed and flushed right away. The tell tale sign of water getting into the tranny is a rusty dipstick. Just like the guy said flush and fill, and cross your fingers it didn't do any damage. My tranny that I just rebuilt was damaged by water at some point and destroyed the friction material on the clutch packs. Common area of waer getting in is the oil cooler on the rad. Sometimes you can see it because the trannt fluid mixes with the anitfreeze, other times it can be a pinhole leak, or hairlines cracks at the joint of the cooler internally. If you need more information, take a look at this article from Raybestos powertrain. I used thier new clutch pack material for my new rebuild and came acroos this.
http://www.raybestospowertrain.com/p...tip_water.html |
There will always be a little moisture when there is heat.
The moisture enters through the seal in the top of the filler tube seeing is will rust and thus not allowing the seat to seal properly.
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