Vintage Thunderbird Club International

Hi, I am the owner of at 1961 ragtop, and just finally got around to an engine teardown and rebuild. The motor is strong and no more leaks! Runs better than ever.

Before I did this, I made a decision a couple of years ago to change out my transmission fluid and new filter. I don't know if the previous owner ever did this. Messy, but easy-peasy, right? Ever since, I cannot get a seal on the pan! So, I finally found the shift shaft seal was leaking. I brought it to my mechanic who works on my contemporary vehicles, and had him do it. Sho'nuf...I still have a leak, but the real change is my shift points. I was in spec (D1-D2 at about 8-10mph) then to third gear about 35mph. Now, since getting it back from him, my leak is still there (I'll be bringing it in for rework) and my shift points are way out of whack: 25mph and 55mph. WTF?

Can someone point me to any posts about adjusting this? Or, now do I have to take it to a tranny shop where I'm sure i'll be a small fortune.....

Thank!

Geoff

Did he replace the modulator? Might just need adjusting. Maybe when he pulled the valve body out the modulator pin fell out with it.

Maybe the modulator. Maybe loss of vacuum to the modulator. Perhaps the trans mechanic left off the short rubber hose at the modulator? Good luck.

Bill

Thanks, Gents. I believe it to be the moderator as well. Going to address it when it stops raining.

I had a problem with not getting a 2-3 shift. I turned the adjusting shrew inside the vacuum nipple counter-clockwise until the head was almost flush with the open edge of the nipple. Put it back together and under normal driving I get a 1-2 shift between 15 and 20, and a 2-3 shift between 35-40. Wide open, the 1-2 shift is between 2o and 25, while the 2-3 shift is between 45-50.