[firewood]

Just put new calipers, pads and rotors on my 83' ford f150.

It has power brakes, and is 2wd.

Followed instructions per Haynes manual and the pads are rubbing slightly on the rotor. I can turn the rotor by hand and it will make about 2-3 rotations.

Is this okay?

One more thing, piston in caliper is all the way in its bore, and I have not depressed the brake pedal as the other caliper has not been put on yet and the line is not sealed tight.

[BstMech]

Yes it's okay.

One thing I've noticed with them year Fords is that the pistons like to stick in the caliper. Don't worry though, it'll be real obvious from the smell of burning brakes after driving a block or two. Other than that, you're good to go.

EDIT: I just now noticed you said you installed new calipers.

[adtkart]

Yes..... they will rub a little. They will most likely wear in relatively quickly and stop rubbing as much. I hope you have changed the fluid in the system when you changed the calipers. The old fluid will hasten the sticking problem of the calipers that was mentioned.

[firewood]

BstMech, I appreciate the help.

[Eficamaro]

Disc brake calipers are designed with whats called a square cut o-ring that seals the piston, as you press on the brake pedal the o-ring kinda binds for lack of better words, as you release pressure the o-ring has a spring back effect that realeases the pressure off the rotor thus allowing the rotor to spin

you should have some drag on the rotor that basicly means the system is working properly if you can turn it by hand you are ok

if you are still worried about it you can change the calipers wich come with new o-rings that should definitly solve that problem