TH 400 Install in 70 GS

I had my TH400 rebuilt and now I'm re-installing the unit. I am at the point where I am installing the torque converter to the flexplate. With the torque converter all of the way back it sits about 1/16" from the flexplate. I figured as I tightened the bolts the torque converter would easily slide forward. But it seems as though the flex plate is moving (flexing) in lieu of the torque converter moving forward. Does that seem correct or is the torque converter binding somewhere.
Thanks, Tom

 

Your right.. Something not right.. The TC should move toward FP.. Not the other way

 

Thanks Bob. I tried to get a better look - it appears the center of the TC is hitting the center of the flexplate. It's very difficult to see in there but I don't see a gap between the center of the TC and the flexplate to crank mounting bolts. Thanks, Tom

 

Tq hub goes in the end of the crank, I have seen a couple rare instances where paint will keep it from going in

 

Thanks Hugger, I'm separating the transmission now to see if I can measure the OD of the Tq hub and the ID of the crank. Thanks, Tom

 

I dropped the tranny, looks like 1.705" OD of the Tq, 1.685" ID of the crank, so it appears the 0.02" difference won't allow the Tq to sit flush against the flexplate. I'm going to take some emory cloth to the Tq - 0.02" doesn't seem like much. Any other ideas? Thanks, Tom

 

Yep, I usually try and remember to sand and lube the hub and crank, most the time I'm in a rush and forget but its certainly best to do so

 

I finally got it in by sanding the Tq hub and crank with a Dremel and flexible sanding wheel, and a little grease. Thanks for all of your help.
Thanks, Tom

 

Hey, when you slid the torque converter back onto your transmission, how may clunks does it take to fully seat? Thanks!

 

Thanks Larry!