[Alvy]

Originally Posted by johns cubs

Something an old farmer told me to do with a stuck valve on a model T. Worked like a charm!! ATF usually works too. But i had a solenoid in a auto trans for OD stickin and i put bout a cap full of brake fluid in that and after drivin a little while it started shifting much smoother. Why it works? Not sure just know it seems to. Unless i have had one hell of a chain of coincidence over the years!!

Brake fluid makes rubber seals and gaskets expand so more than likely your clutch pack sealing rings on the trans were affected by this or possibly the o rings on your solenoid valve if the bore was worn or something, both of which are a very temporary fix. I have never heard of mixing brake fluid to clean out things like valves but ATF in the oil for a bit yes. I'm going to look more into this, interesting to say the least