TC lined up?

[firemedic355]

I'm in the middle of replacing my 4r100 Tranny and Torque Converter with a new package. My Chilton manual says to mark the relation of the Torque Converter to the flex plate,which I've done withy a sharpie. But if I'm replacing both the converter and the tranny, what good does this mark do me and how do I know if the new converter is lined up right on the new tranny before I install them? thanks in advance

[ipz2222]

It means, have the studs in the approximate position with the holes in the flexplate so that when you get the trans allmost to the eng, you won't have to hunt for the studs. Once the trans is up that far, you allmos t cannot see the studs.
The really big problem is getting the tc all the way back into the pump. Miss that one and it's $$$$$$$$ on start up. NEVER pull the trans up with a bolt in the bellhouseing. Get the trans lined up and push it to the block with your hands. Make sure it's flat against the block. Grab the tc stud and wiggle it. If it does'nt wiggle, the trans is not flat to the block or you don't have the tc all the way in the pump.

[firemedic355]

Thanks, sounds almost do'able. Anyone have any other advice or tricks to make sure I get it right?

[ipz2222]

Do you have 2 coolers on the front. One in the radiator and another air cooler. It is VERY important that you get these flushed out. Metal and clutch material are in there from the trans failure.
Once the tranny is in, add 10 quarts of fluid before starting the eng. This gets the fluid level up high enough to soak all the clutches and lubricate the thrust washers. Should take about 17 to 18 quarts. On the test drive, cancell od and leave it off for 3 to 5 start to 50 mph cycles. Turn od back on and retest. At 60 mph with od on, keep steady throttle, lightly touch brake, you should feel tc unlock and then come back on as you let off the brake. Eng temp must be up to 150 degrees.

[firemedic355]

Thanks, hopefully nothing goes terribly wrong.