The Stovebolt Site Forums The Shop Area Engine Shop seperating a 270 from Hydramatic

This is going to seem rediculous, but while pulling the 270 motor out of the 55 second burb, we could not get the motor to seperate from the tranny. The bolts were out, double and triple checked that, the motor would roll both ways, the flywheel did not seem to be hung on anything, and the two housings would get to about 1/4" or maybe 3/8" apart and that was it. The thing has been together for a good many years. My question is this. What would cause the two to hang up? We used a bobcat to pull on it and it still wouldn't come out. Of course we tried prybars and the like prior to that. Am I missing something simple? I have the motor/ tranny out in one piece now.

There is a line of bolts or nuts and studs holding the fluid coupling together, on the rim of the coupling just behind the starter gear. They're accessible by removing a sheet metal cover in the top of the bellhousing/transmission case. Take 'em all out- - - -about 30 or so if I remember correctly! The front of the coupling stays bolted to the crankshaft like a flywheel, while the back half is attached to the transmission input shaft by a BIG nut. There's a big rubber O ring that seals the fluid- - - -get a new one from one of the obsolete transmission parts suppliers like FATSCO Transmission Parts in New Jersey.
Jerry

One more question? On the back of the bell housing it reads..
" This housing must remain with this motor."
Does that mean that the crankshaft from the old motor, with the hydro-matic, needs to be put into the new donor block that had a four speed manual in order for everything to work properly? Is there anything else I should know before rebuilding the two motors into one? They are both the same casting number by the way, and I would like to retain the Hydro-matic.

I don't believe it's that critical. I seem to remember that the bellhousing was dial-indicated concentric with the block on the Hydramatic engines to minimize runout, but unless there's a difference in the crankshaft hub, the cranks should interchange between standard and automatic engines without a problem. There have been a lot of bellhousing/block swaps done over the past 60 years, too, I'll bet!
Jerry