Re: fransmission fluid spewing ultramatic

Posted by Larry51 On 2014/3/1 6:34:33

I've recently installed the Ultramatic in my '51 and started the engine, after doing what the Manual says (- on page 26 of Ultramatic Section).

Initially you are instructed to place 7 quarts of ATF in the Ultramatic, adding the last quart 'more slowly' than the first six. Then start the engine and run it for 2 minutes to fill the converter. Last, add the remaining 5 quarts.

I have wondered if the converter might slowly (- or even quickly) drain back into the trans body, thereby 'over-filling' the trans . . . . and therefore leaking. Tim has mentioned the possibility of this happening.

If so, would the volume of ATF in the converter be sufficient to create an overflow?

I haven't had a chance to check if leakage happens (on mine) because I have had to drain the trans in order to fit a new gasket (twice!).