starting problem

[classic car repair]

I have a 1936 Ford Pickup, Flathead V8, It run very good, it been setting inside a build for about 25 year not running, I got running, now I fine that when you run it and temp is up to about 160 deg, You turn off the engine, try to restart, it will not restart, it turn over ok, I replaced the condenser, check the power going to the coil, 2.1 volts, 7.8 ohm's. when it cool down it will start right up, no problem, can it be the coil? Thank You