Re: Few Questions About A '51
Posted by shadetree77 On 2017/9/10 0:03:41
We did check the fluid with engine running as well as within seconds of it being shut off. Readings were the same. When we started the stick was dry. After 4 quarts it reached the full mark. Not only did it move before we put all of that in, it performed flawlessly. It was only AFTER adding fluid that it began to act strangely.
I believe you may have solved the mystery. I thought I had read somewhere that Type A (Dexron/Mercon) was suggested so that is what I used. You are saying that Type F should be used instead. I have no idea if the trans. has ever been rebuilt. I will drain the pan and converter and refill with Type F and report back.
As far as the operation, I am not familiar with it at all. This is my first time driving an Ultramatic. I have a Buick equipped with Dynaflow and it never shifts. It just goes smoothly. So you're saying that at certain times a "direct drive" kicks in? When this happens, does it feel like the car is shifting? Because I am definitely feeling a shift-like motion as the car comes up to speed. I am not manually shifting from low to high as I have read that the Ultramatic doesn't take kindly to that procedure. Thank you very much for your detailed response.
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